ANNUALREPORT

2013

Published by Institute of Water Modelling

House # 496, Road # 32, New DOHS

Mohakhali, Dhaka, Bangladesh

Copyright @ 2013 IWM All rights reserved

Editorial Board

Chief Editor : Prof. Dr. M. Monowar Hossain

Editors : Abu Saleh Khan, PEng.

Dr. A.F.M. Afzal Hossain, PEng.

Co-Editor

Saad Siddiqui, PEng.

Md. Ashraf Ali Khan

Compilation

M H AnupamMahmud

Printed by Finearch, Dhaka

This publication is available in electronic form at

www.iwmbd.org/publicaions/annual report 2013

Credits:

S M Mahbubur Rahman, Zahirul Haque Khan, S M

Shah-Newaz, Mir Mostafa Kamal, Md. Sohel Masud,

Md. Amirul Islam, Rubayat Alam, Md. Mobassarul

Hasan, Goutam Chandra Mridha, Md. Rezaul Hasan,

Md. Tarikul Islam, Tarun Kanti Magumdar, Md. Yousuf

Mamun, Asif Mohammed Zaman, Pankaj Kumar

Maitra, Farhana Akhter Kamal, Md. Tohidul Islam.

This publication may be reproduced in whole or in

part in any form for educational and non-profit

purposes without written permission from the

copyright holder, provided acknowledgment of the

source is made. IWM would appreciate receiving a

copy of any publication that uses this publication as a

source. No use of this publication may be reproduced

for resale or any commercial purpose whatsoever

without prior written permission from the competent

authority of IWM.

Institute of Water Modelling (IWM) is a Trustestablished by the Government of Bangladeshin December 1996 to function as a Centre ofExcellence and Learning in the field ofComputational Hydraulics, Water Modellingand allied Sciences. IWM owes its genesis tothe three phases UNDP-DANIDA aided SurfaceWater Simulation Modelling Programme(SWSMP) carried out during 1986-1996. Sincethen IWM has developed numerical models ofrivers, estuaries and bays covering entireBangladesh and applied in national importantprojects.

IWM offers a wide range of specialist services inthe fields of water resources planning andmanagement as well as Hydrometricmeasurements, hydrographic and topographicsurveys and monitoring.

Integrated water resource managementClimate change modellingWetland and lakes managementIrrigation managementGroundwater managementUrban water managementClimate change modellingWater quality and ecologyFluvial hydraulics and riverRiver engineeringFlood managementIntegrated coastal zone managementCoastal hydraulics and morphologyPort and coastal structure managementEstuary and marine system managementOffshore structure and pipelinesWater quality investigationSoftware management and IT solutionsHydrogeological investigationsTopographic and hydrographic survey,sediment transport, water quality and hydrological,metereological field measurements, necessarylaboratory analysis and data management andmapping;Any other field of area which may be convenientlyand beneficially done through the facilities of IWM.

Areas of IWM ServicesAbout IWM

Regional TrainingHRD and R&D

Institutionalisation - self sustainingnon-profit organisationunder Trust Act

DANIDA Aided

DANIDA Aided

UNDP Aided

1D River ModelDeveloped For TwoRegions: SERM, GM

1D Morphological and

Salinity Modelling

Four More Regional ModelsDeveloped: NWRM, NCRM,NERM, SWRM

Morph., WQ, GW, UDand 2-D Modelling2-D Hydrodynamic

CommercialApplication

GIS Integration

Command Area DevelopmentCoastal Zone Management, IntegratedWater Resources Management

Ouasi 2D Morphology, Waves2-D CurvilinearInformation Technology

HydroinformaticsAdvanced hydrometry

WS Network ModellingRiver Erosion ForecastingLand Water &Infrastrcuture Management

Urban Water ResourcesAssessment

Total Quality Management

2002 To Date1997 20011994 19961990 19931986 1989 III I I I II I

IWM TRUSTSWMC TRUSTSWSMP - IIISWSMP - IISWSMP - I

Historical Development of IWM

IWM Board of Trustees

Dr. Zafar Ahmed Khan Chairperson

Secretary, Ministry of Water Resources, Bangladesh Secretariat, Dhaka

Mr. Md. Shahidur Rahman Member

Director General, BWDB, Dhaka

Mr. Mofizul Islam Raj Khan Member

Chief Engineer, Roads & Highways Department, Dhaka

Mr. Md. Wahidur Rahman Member

Chief Engineer, LGED,LGED Bhaban, Dhaka

Mr. Md. Salim Bhuiyan Member

Director General, WARPO, Dhaka

Engr. Md. Nuruzzaman Member

Chief Engineer, DPHE, DPHE Bhaban, Dhaka

Ms. Quamrun Naher Ahmed Member

Additional Secretary (Banking Policy), Ministry of Finance, Dhaka

Ms. O. N. Siddika Khanam Member

Additional Secretary, Planning Division, Planning Commission, Dhaka

Mr. Antoine Labrosse Member

Cheif Executive Officer, DHI, Agern Allé 5, DK-2970, Hørsholm, Denmark

Prof. Dr. M. Shamim Z Bosunia, PEng. Member

President, The Institution of Engineers, Dhaka

Prof. Dr. Md. Sabbir Mostafa Khan Member & Treasurer

Head, Deptt. of WRE, BUET, Dhaka

Dr. Gholam Mostofa Member

Chief Adviser, Prime Engineering Limited, Dhaka

Ms. Lailun Nahar Ekram Member

President-Asian Development, Technology Centre & MD – ECBL, Dhaka

Prof. Dr. M. Monowar Hossain Member-Secretary

Executive Director, IWM, Dhaka

Organogram of IWM

DeputyExecutive Director

(Opn)

RiverEngineering

Survey &Data

Management

Administration

Coast, Port& Estuary

Management

IrrigationManagement

ExecutiveDirector

Board of Trustees(BOT)

DeputyExecutive Director

(P&D)

StrategicPlanning

HumanResource

Development

QualityManagement

Research &Development

Accounts &Finance

InformationTechnology

BusinessDevelopment

Contents04

05

06

10

14

18

23

27

30

32

34

37

From the desk of the

Executive Director

Message from the Chairperson

River Engineering

Irrigation Management

Flood Management

Research & Development

Human Resource Development

Water Resource Planning

Coast, Port and Estuary

Management

Survey & Data Management

Information and Communication

Technology

Important Events

Message from the ChairpersonIt is a pleasure to convey my best wishes to Institute of Water Modelling (IWM) on thepublication of its Annual Report 2013. I am happy to observe that IWM has come along way to establish itself as a prime and leading institute in the country as well as inthe region, dealing with the complex technology of mathematical modelling,computational hydraulics and allied sciences and addressing numerous water-relatedproblems of the country.

Today's success of IWM was possible through the dedication of its skilled humanresources that has been made possible to achieve the result-oriented solutions ofcomplex hydrological, hydraulic and morphological problems of the river systems ofthe country. I have been informed that the year 2013 has been a year of continuedsuccess.

Geographical location of Bangladesh is quite unique. Due to this factor it has to endurefrequent and recurrent water related challenges. The country is extremely vulnerableto flood, drought, cyclone, river erosion, and other natural disasters. IWM developedmodels through use of state-of-the-art technologies and significant development hasbeen achieved in addressing number of these challenges. As a result government andnon-government agencies of the country as well as donors continue to consider IWMas one of the reliable institutions in devising sustainable solutions to thesecomplicated water-caused hazards.

As the Chairperson of IWM Board of Trustees, I am happy to know that new agenciesand departments are considering IWM in using mathematical modelling services fortheir projects. The Institute has already earned credibility and reputation to beconsidered as a reliable consultant to devise sustainable solutions to water relatedproblems.

I am happy to know that the Institute continues to organize seminars and workshopsto share its knowledge and experience with national and international community onthe matter of common interests. I firmly believe that the Institute will play animportant role in knowledge sharing for delta management in a changing climate.

It is encouraging to note that IWM has been continuously pursuing HRD to improve itsstaff resources with the latest update. I anticipate that the development partnerswould provide support to implement its planned HRD programmes in the comingyears. I am happy to learn that in the year 2013 IWM continued its on-going researchprojects and explored for new research opportunities with foreign Institutes andUniversities. I am pleased to note that IWM's linkages with other educational andresearch institutions within Bangladesh and abroad is continuing and growing byopening up new frontiers of collaboration.

I would like to extend my thanks to the members of the Board of Trustees of IWM fortheir generous contributions and continuous support over the years. I also extend mybest wishes to the committed staff of IWM for their efforts in enhancing the image ofthe institution and country. I wish IWM a bright future.

Dr. Zafar Ahmed KhanSecretaryMinistry of Water Resources&ChairpersonIWM Board of Trustees

From the desk of the Executive DirectorIt is a pleasure to reflect the achievements and the performance of IWM during theyear 2013. IWM passed another year of continued success in 2013 with morecredibility from its valued clients and users. International consultants anddevelopment partners as well as local users continued to entrust IWM for services inthe area of integrated water resources management and allied areas with theapplication of cutting edge technology in mathematical modeling, computationalhydraulics and allied sciences. We also continued to provide more emphasis on newareas of knowledge through research and studies in the water and environmentaldomain.

In 2013 IWM conducted a good number of mathematical modelling studies inconnection with water resources management and development. In riverine areasmodeling exercise on flood and erosion was the thrust areas. Important studiesinclude: improvement and upgrading of flood forecasting and warning system in thebasin scale as well as national scale, river restoration and improvement projects andmajor and minor river management studies. In coastal zones, important studiesincluded salinity intrusion due to climate change, study of marine drive road inCox'sbazar, study for the development of sea port at Rabnabad channel, study forupdating NWMP, scheme information and management system, feasibility study forSaidabad water treatment plant Phase III project, water availability, demand andadaptation option assessment of the Brahmaputra River basin under climate change,flood risk management in the Philippines, some water development studies inMalaysia and India.

IWM conducted BCCRF funded study regarding salinity Intrusion in Groundwater in thecoastal area due to climate change, groundwater resources study and IIS developmentof Pabna, Sirajgonj, Bogra, Gaibandha, Rangpur, Kurigram, Nilphamari and LalmonirhatDistricts, feasibility study of Titas river (Upper) re-excavation, Morphological Modellingof the Kalni-Kushiyara River system, pilot capital dredging of the Jamuna river,modeling support to Ganges Barrage study, morphological study of the upper Meghnariver in connection with Haria intake for Saidabad WTP Phase-III, railway bridge on theRupsha river and 5 large road bridges in the south west region of Bangladesh, surveyand preparation of inundation maps of fish rings under different water level,bathymetry survey and ADCP measurements of five rivers for conducting hydrotechnical investigations to derive hydraulic design parameters in Buriganga River.

To cope with the new development and capacity building, HRD unit organized 32training programmes for the staff of IWM and of clients at home and abroad in 2013.These programmes brought together about 260 participants from various disciplinesand divisions.

IWM continued its commitment on applied research including some fundamentalresearch in collaboration with universities and research institutes. The findings ofthese researches were disseminated through a number of important seminars andworkshops. IWM professionals continued to participate in international arena todevelop new bondage, networking and business development.

In the end, I would like to express my gratitude to all the valued clients, associates andpartners for their continued support and trust. I like to express sincere thanks andgratitude to the members of the Board of Trustees of IWM for their support andguidance. Finally, I thank and congratulate all IWM staffs who have taken the challengeof keeping IWM commitments towards maintaining high standards and bringinginnovative technical knowhow and means in facing the current and new challenges ofvarious uncertainties in the water development environment.

Prof. Dr. M. Monowar HossainExecutive Director

River Engineering (REN) Division operates in the fieldof river engineering and management, and uses state-of-the-art mathematical modelling technology in thefollowing disciplines:

Fluvial hydraulics and river morphologyErosion management (river training and bankprotection works)River dredging managementOfftake managementSediment management for hydraulic structures(dam, barrage, regulator, etc.)Road/bridge infrastructure managementHot water dispersion and cooling water intake inrivers for Power Plants.

The division inherits its strength from its involvement,for more than 15 years, in the field of morphologicalmodelling of more than 1,500kms of large, meanderingand braided rivers of Bangladesh including 3 majorrivers - the Ganges-Padma, the Brahmaputra-Jamunaand the Meghna.

In 2013, REN was involved in a number of projects inmorphological modelling of river systems, feasibilitystudy, capital dredging, river restoration study and anumber of road and railway bridge projects.

Major outputs of the bridge projects were todetermine suitable bridge location and alignment,impact on hydro-morphological condition of the riversdue to implementation of the bridges andrecommendation for mitigative measures like bankprotection/river training works, if any adversecondition were apprehended to take place.

River Engineering

06

Bangabandhu Multipurpose Bridge

Mathematical morphological modelling

for the Ganges Barrage Project

In order to utilize the Ganges water under India-Bangladesh

treaty, for benefit of the people living in Ganges Dependent Area

and to offset the negative impacts of the withdrawal of water

upstream of Farakka on agriculture, fisheries, and ecology of the

south-western region of Bangladesh, it is rather imperative to

construct a barrage across the Ganges within Bangladesh.

Engaged as sub-consultant, Institute of Water Modelling carried

out mathematical modelling for the feasibility study and detailed

engineering design.

With a view to assess the changes due to construction of the

large structure, comprehensive morphological modelling has

been carried out to develop two-dimensional (2D) morphological

models with different extents using the State-of-the-Art

modelling tool MIKE21C.

Feasibility study for re-excavation of

Titas River (Upper) under

Brahmanbaria district

BWDB engaged IWM to assess the

feasibility of the envisaged re-excavation of

the Titas River (upper) from technical,

socio-economic and environmental points

of view, and explore feasible options for

navigation, flood control and drainage

improvement as well as water resources

development and management in the

study area.

The approach of the study was to develop

fully dynamic hydro-morphological models

(one- and two-dimensional) for the river

systems encompassing mainly the Titas

(Upper)-Pagla River system, and

application of the models for several

options to make the Titas (Upper)-Pagla

River system as a perennial one.

A view of Titas River

07

Bed Level m(PWD)

Undefined Value

455000450000445000440000415000

Above 1612-169 - 127 -93 - 71 - 30 - 1-2 - 0

Below -2

Proposed Groyne

Proposed BankProtection Work

Proposed BankProtection Work

Divide Wall

Undersluice

Guide Bundh

Fishpass

Navigation Lock

In July 2013, IWM signed a contract

with Bangladesh Bridge Authority

(BBA) for monitoring of hydraulic &

morphological conditions of the

Jamuna River for the safety of the

River Training Works of Bangabandhu

Bridge for the period 2013 to 2017.

630000

631000

632000

633000

634000

635000

636000

637000

638000

639000

640000

641000

642000

643000

644000

645000

646000

647000

648000

649000

650000

Final layout of the Ganges Barrage and its ancillary structures

Sustainable river management plan for main rivers,

distributaries and tributaries in Bangladesh

BWDB engaged IWM to carry out mathematical morphological

modelling and investigation in connection with the sustainable

river management plan for main rivers, distributaries and

tributaries in Bangladesh.

IWM study mainly aimed to formulate solutions to the problems

through river modelling, enabling "intelligent" implementation of

dredging, realignment of navigation routes, protection of

vulnerable erosion/flood prone areas and mitigation measures to

keep off-takes open, etc.

The approach of the study was to develop

and apply fully dynamic hydro-morphological

models for the selected major river system.

One of the major tasks of the study was to

test the technical feasibility, i.e. hydro-

morphological aspects of "channelized"

options for the Jamuna, Ganges and Padma

rivers. This was done with a view to reclaim

land, which have been engulfed by the rivers

through the havoc of river bank erosion for

quite a long time.

8 major rivers were selected for the study:

the Brahmaputra-Jamuna, Ganges-Padma,

Meghna, Old Brahmaputra, Atrai, Pussur,

Baleswar and Karnaphuli rivers.

Simulated speed contour with vector of a reach of theOld Brahmaputra River near Islampur during peak ofmonsoon of a high flood event.

Rivers to be studied (Sustainable river management)

08

Islampur

Current speed (m/s)

Above 1.00

1.60 - 1.80

1.45 - 1 .60

1.20 - 1. 45

0.75 - 1.20

0.10 - 0.75

Below 0.10

High velocity

exceeding

the bermHigh velocity

exceeding

the berm

B A N G L A D E S HR I Y E R S Y S T E M

776500

776400

776300

776200

776100

776000

775900

775800

775700

775600

775500

775400

775300

775100

481500 482000 482500

775200

District HQ

Upazila HQ

International Boundary

Major River

Minor River

Major Bridge

Sundarban Reserved Forest

DHAKABay of Bengal

Water quality sampling

09

Water Resource Planning (WRP) Division is involvedbroadly in the following 4 areas:

Water resources assessment, planningand management at macro level,

Urban water management including water supply,sewerage and storm-water drainage

Wetlands and lake management and

Water quality and ecology including conservationof bio-diversity and sustainability of watereco- system.

WRP division uses a wide range of state-of-the-artmodelling tools for its work. These include: (i) MIKEBasin - for river basin planning, (ii) MIKE Urban - forwater distribution system modelling, sewer systemmodelling, (iii) MOUSE - for stormwater drainagesystem modelling and analyses, (iv) MIKE 11 - forhydrodynamic and water quality modelling in surfacewater systems, (v) MODFLOW - for groundwatermodelling.

Presently 73 professionals are working in WRP division.These experts include: urban water managementspecialists, water quality and environmental specialists,water resources specialists, modelling specialists andgroundwater experts. These experts have advancedtraining and work experience in water resourcesplanning and management studies including fieldinvestigations. Working with multi-sectoral teams hasfacilitated the experts to develop a holistic view onwater resource management in both urban and ruralareas.

During the year 2013, WRP carried out a number ofimportant projects. Notable ones among these includeFeasibility study for Saidabad Water Treatment PlantPhase III, assessment of state of water resources forupdating NWMP, mathematical modelling foridentification of water supply sources in 148 pourashavasof Bangladesh, establishment of groundwater monitoringsystem in Dhaka and adjoining areas.

Water ResourcePlanning

10

Testing aquifer through pumping

Assessment of state of water resources for

updating NWMP

IWM is supporting WARPO for assessment of state of

water resources. This 18-month study has been

formulated to carry out a comprehensive surface

water and groundwater assessment using

mathematical modelling tools, updated database and

recent information on water utilization and

withdrawal.

The study would cover the entire Bangladesh keeping

in view the Ganges-Brahmaputra-Meghna River

basins. Climate change and sea level rise projections

for the future are also considered.

Modelling systems and expected outputs for WARPO

resource assessment study.

Feasibility study for Saidabad water treatment

plant phase III project

The total water demand of the Dhaka City has been

calculated approximately at around 2,300 MLD in 2013,

which is predicted to increase to around about 5,500

MLD in 2035.

DWASA meets 78% of the water demand through

extraction from groundwater sources. Continuous

abstraction of groundwater will result in environmental

degradation as a natural consequence. Therefore,

immediate measures are required to shift from

groundwater sources to surface water sources for water

supply to Dhaka city. One significant measure would be

to implement the Saidabad phase III project which will

allow additional 900 MLD water supply to Dhaka.

Feasibility study for Saidabad water treatment plant

phase III project, carried out by Egis, France in

association with IWM, was launched in 2013. Capacity

of this plant will be 900 MLD. The major objective of the

study is to carryout detailed feasibility study of the

project which includes i) option study for intake

selection & WTP ii) assess dependable flows in Meghna

River iii) selection of water treatment process iv) outline

design of project components v) estimating cost of the

project.

Extensive use of 2-dimensional morphological model

has been done to investigate sedimentation at the

intake, river bank stability and options for bank

protection works. Network models have been used to

design the transmission lines. One dimensional model

has been used to generate long-term river discharge

data at the intake site for dependable flow calculations.

11

Models

Rainfall-runoff ModelLumped conceptual rainfall

runoff model NAM

Simulation of rainfall-runoff from differnt sub-basins under

different hydrologic conditions

Simulation of flow at various locations in the basin area

including at the boundaries of the HD model under various

scenarios

Simulation of flow and water level at various locations in the

basin area under various scenarios

Simulation and flow distribution of different branches of the

Ganges-Padma-Meghna-Jamuna-Old Brahmaputra-Surma-

Kushiyara Rivers

GW recharge, safe yield, and abstraction impacts on aquifer

system

GBM River Basins ModelMIKE Basin

River HD model

Morphological model of major

rivers

Groundwater model

unsteady One-dimensional

Hydrodynamic model MIKE 11

One-dimensional morphological

model MIKE11-Mor

Physically based MIKE SHE

model

Outputs

12

Water Supply Master Plan for Dhaka city &

greater Dhaka for the next 50 years

Appointed by DWASA, IWM and DevCon are engaged

in the preparation of Water Supply Master Plan for

Dhaka city. The goal of the project is to prepare a

Master Plan to indentify priority investment projects

and to recommend an appropriate institutional

framework.

In order to decrease the dependency on ground

water Dhaka WASA is planning to harness surface

water from the Rivers Padma and Meghna. Another

project is underway to bring water from well fields in

Singair and Savar.

Based on the agreed water supply strategy for the

next 50 years (up to 2060) the water supply master

plan will be prepared for short-term, medium-term

and long-term conditions. Each of the phases would

consist of a series of development projects. The

major components of the development will be

inclusion of the Surface Water Treatment Plants

(SWTP).

Transmission system has been designed for these

sectors to supply water from the plants to the

distribution system. The master plan also appraises

the current and future institutional requirement for

DWASA.

Water Management Improvement Project:

Scheme Information and Management System

SIMS is a Scheme Information Management System

to support BWDB engineers for planning, budgeting,

estimating and monitoring the operation and

maintenance works of FCD and FCDI schemes,

developed by IWM under WMIP for BWDB. SIMS will

also help the decision makers to determine the level

of scheme performance, agricultural, socio-

economical and environmental analysis as well as

screening the schemes and prioritization in

investment.

SIMS consists of 10 (ten) number of modules for

different purpose of scheme maintenance and

operational works namely (i) Scheme Inventory and

Mapping, (ii) Search/Query (iii) GIS Mapping, (iv)

O&M, (v) Monitoring (vi) Report, (vii) Metadata, (viii)

Water Management Organization (WMO), (ix)

Scheme Performance and (x) Decision Support

System.

SIMS database has been developed with the basic

information of Schemes, detail information of

physical features of embankment and polder,

drainage channel and Khal/Canal and hydrological

structures such as regulator, water control structure

and river bank protection. SIMS also includes

standard GIS mapping tools to support users for

preparing scheme maps using schemes spatial data.

SIMS has been developed for two levels of users one

is for the officials of BWDB head Office and another

is for BWDB field officials.

Standard GIS Mapping Tool for preparing Scheme Mapsin which physical feature data are dynamically linked.

Proposed Transmission Line for Padma Sector; carrying900 million litres a day to the western, northern andsouthern part of the Dhaka city

Prlyo Prangon

South Town

Keraniganj

Rajuk Jhilmil

Project

Kilometers0 0.4 0.8 1.6 2.4 3.2

N

Demra

Shyampur

BurigangaRiver

Ahasanullah Road

Demra

SabujbaghMotijheel

Khilgaon

TejgaonMohammadpur

Kafrul

Mirpur

Savar

Cantonment

Gulshan Badda

Pallabi

Sutrapur

Kotwall

Lalbagh

Hazaribagh

DhanmondiRamna

Dhaka-NarayanganjRoad

AtishDiponkorRoad

KamlapurRoad

Bashundhara River View

Manik miah Avenue

MirpurRoad

GreenRoad

MirpurRoad

KaziNazrulIslamAvenue

ShahidTazuddinRoad

South Avenue

MadaniAve

nue

NewAirportRoad

PragatiSharani

PragatiSharani

OldAirportRoad

CantonmentRoad

BegumRokeyaSarani

Mirpur 10

toMirpur 11Mi

rpur1 to Mirpur10

Dar-us-SalamRoad

MazarRoad

Lake-Road

Pantha Path Pantha Path

Bishow Road

NewEsk

atonRoa

d

Legend

Proposed Transmission Line (Dia in mm)

Bridge

Sector

Padma North

400

450

500

600

800

1000

1200

1600

1800

Thana Boundary

DMA

River/Khal

Road Network (Existing and Propose)

Kamrangirchar

13

Comprehensive sewerage masterplan for

Dhaka city

The Ministry of LGRD and Cooperatives and DWASA

in September 2008 produced a Development Project

Proposal for a comprehensive 5 year programme of

sewerage (and storm water) improvements under

the Dhaka Water Supply and Sanitation Project,

funded by the World Bank. The sewerage masterplan

is part of the programme.

Together with Grontmij A/S of Denmark, IWM

worked in devising a sewerage masterplan for Dhaka

city. The projected service area was divided into

independent sewersheds with collection network

and Sewerage Treatment Plants. The masterplan

introduced trickling filter technology of wastewater

treatment for its simplicity and low cost operation

and maintenance.

IWM independently designed 120 km length of

sewer collection pipe network for localities such as

Baridhara, Mohammedpur, Niketan, Banasri etc.

Safe drinking water source identification in 148

pourashavas

Potential source of water is still unidentified in most

parts of the country. Arsenic contamination, high iron

concentration, salinity intrusion, industrial pollution,

mining of groundwater, scarce rainfall, inadequate

study on water resources management etc. restricts

the availability of sustainable water source.

IWM in association with BETS, SARM and BCL carried

out the study to identify safe drinking water source

in selected 148 pourashavas in Bangladesh.

In the study, mathematical models for surface water

and groundwater source have been developed to

investigate the options for sustainable water source.

Alternative options like rainwater harvesting, Pond

Sand Filter and Infiltration Gallery are proposed

where found to be appropriate.

Pipe network and drainage models have been

developed for transmission and distribution system

design. This study also established surface water and

groundwater monitoring system and recommends

measures for maintenance and rehabilitation of

water supply, sanitation and drainage system. It also

includes capacity building of DPHE and Pourashava

officials through comprehensive training and

technology transfer programmes.

Banasri sewer collection network

Study area (pourashavas) shown in red dots.

Banasri SPS

Irrigation Management (IRM) Division of IWM provides services in the field ofirrigation & drainage, groundwater management for judicious and sustainablemanagement of land and water resources for Bangladesh and abroad. Its services aretargeted towards enhancement of agricultural productivity, while at the same timeretaining the environmental integrity and sustainability. The division mainly draws itsstrength from a group of qualified, efficient and dedicated professionals, havingexpertise in the field of irrigation management, groundwater modelling and host ofrenowned modelling software like MIKESHE, MODFLOW, MIKE11, MIKE-GIS, FEFLOW,CROPWAT, HYMOS etc.; supported by GIS, ICT and sophisticated data collectionsystem.

During the year 2013, IRM division primarily concentrated on delivering the services ofthe ongoing contracts, signed earlier, as well as procuring new assignments. Activitiesof the division were concentrated but not limited to action research on sault waterintrusion in groundwater in the coastal area, hydrogeological investigation inBarapukuria coal basin area, establishment of monitoring network and model study toassess saline water intrusion in groundwater in the coastal area due to climate change,groundwater resources study and IIS development for 8 districts of Rajshahi division,BMDA Ph-II, pilot study under the BIWRA project.

Some of important new contracts signed during the year include Survey &investigation of water resources management by mathematical modelling ofPanchagarh, Thakurgaon, Dinajpur and Joypurhat integrated agriculture developmentproject areas under BMDA and Groundwater resources availability study for SelangorState of Malaysia.

Irrigation Management

14

Irrigation in Baind Area, Rajshashi

Irrigation water being used for other purposes by the local people (increasing convence loss).

Establishment of monitoring network and

model study to assess salinity intrusion in

groundwater in the coastal area of

Bangladesh due to climate change

Under Climate Fund, IWM conducted a mathematical

modelling study for assessing salinity intrusion in

groundwater and surface water for two pilot areas of

coastal region of Bangladesh. The study area were 5

districts in Barisal division with 4867 sq. km and

Chittagong division with 950 sq. km.

In connection with this study, coastal water salinity

along with its impact to river water has been

investigated at first using the Bay of Bengal model

developed by IWM. Investigation on the interaction

of river /coastal water salinity to adjacent aquifer

water and spatial-temporal variation were assessed

by using groundwater salinity intrusion model. Two

separate groundwater models were developed for

the two pilot areas using FEFLOW. These models

were calibrated and the results were validated

comparing groundwater levels at some key locations.

The study projected salinity levels due to climate

change in the surface and groundwater of the project

area. A moderate scenario A1B was taken into

consideration to assess the impact of climate change.

The model result reveals that the river water salinity

will increase under climate change condition, and the

increased salinity will disperse into the aquifer upto a

distance of 1-2 km by 2050.

15

KACHUA

KAWKHALI

RAJAPUR

NALCHITY

BAKERGANJ

BAUPHAL

PATUAKHALI SADAR

BARGUNA SADAR

AMTALI

KALAPARA

GALACHIPA

TENTULIA

SONATOLA

PATHARGHATA

BHOLA

LOHALIA

DASHMINA

PAT UAKHALI

BHOLASADAR

BARISAL SADAR (KOTWALI)

MORRELGANJBHANDARIA

KOCHA

KANTHALIA

MATHBARIABAMNA

BETAGI

BALESWAR

21o50'0''N

22o0'0''N

22o10'0''N

22o20'0''N

22o30'0''N

22o40'0''N

90o40'0''E90o30'0''E90o20'0''E90o10'0''E90o0'0''E90o50'0''E

21o550'0''N

22o0'0''N

22o0'0''N

22o20'0''N

22o30'0''N

22o40'0''N

89o50'0''E 89o0'0''E 90o10'0''E 90o20'0''E 90o30'0''E 90o40'0''E

HARIN

GHA

BIS

HKHA

P

AIRA

PAN

DAB-1

DHULI

A

BIS

HKHALI

BURIS

WAR

AND

HARMANIK

KHAPRABHANGA

Legend

River

Thana

Simulated Salinity (mg/I)

300 - 500

300 - 1,000

1,000 - 2,000

2,000 - 3,000

3,000 - 4,000

4,000 - 5,000

5,000 - 6,000

6,000 - 12,000

Spatial distribution map of simulated groundwater

salinity (mg/l) on dry season 2012 for upper shallow aquifer

of pilot area-1.

Irrigation zoning map of the GW resources study area.

Pabna

Bogra

Gaibandha

Rangpur

LalmonirhatNilphamari

TBP Phase -l

Kurigram

Sirajganj

PIRDP

District Boundary

River

SW Schemes (Propose)

SW Schemes (Existing)

Mixed Zone (Proposed)

Deep Zone (Proposed)

16

Mathematical modelling study to assess

surface water and groundwater resources

for the two pilot areas in the coastal area

of Bangladesh due to climate change

Bangladesh Water Development Board under Climate

Change Trust Fund engaged IWM to conduct a

mathematical modelling study assess surface water

and groundwater resources for the two pilot areas in

the coastal region under present and future

hydrological conditions of the year 2030 and 2050

due to climate change.

The two pilot areas have different GW use pattern

and hydrological characteristics. The Pilot area-1 is

about 4867 sq km covering 15 upazilas in the

Southwest region and the Pilot area-2 is about 946

sq km over 8 upazilas in the Eastern Hilly region.

In order to achieve the study objectives, a

mathematical modelling study supported by

comprehensive data collection program was carried

out. The modelling software MIKE SHE and MIKE 11

were used for the study.

The study identified that under climate change

condition no significant change in maximum depth to

GW table in pre-monsoon season would occur. But

there will be noticeable increase in post-monsoon

recharge.

Groundwater resources study and IIS

development of Pabna, Sirajgonj, Bogra,

Gaibandha, Rangpur, Kurigram,

Nilphamari and Lalmonirhat districts

through mathematical model study

Engaged by Barind Multipurpose Development

Authority (BMDA), IWM carried out a

mathematical modelling study for groundwater

resource and development of Interactive

Information System (IIS) of Pabna, Sirajgonj, Bogra,

Gaibandha, Rangpur, Kurigram, Nilphamari and

Lalmonirhat districts.

Objective of the study was to assess the groundwater

resources, required number of DTW and STW as well

as to identify the areas suitable for DTW, STW or SW

and to formulate a sustainable irrigation plan.

Under this study, extensive field data collection

program was taken which includes test drillings,

aquifer tests, topographic and cross section surveys,

water quality tests and water level measurements.

The study aimed to bring potential area under

irrigation through conjunctive use of surface and

groundwater resources with the help of

mathematical modelling technique. The study

identified upazila-wise available groundwater

resources and recommended required additional

number of deep tube wells to utilize the resources in

a sustainable way. Social impact assessment,

environmental impact assessment and economic

study were also done for the recommended option.

17

Coastal erosion at Rabnabad channel under Patuakhali district.

17

18

Irrigation in Baind Area, Rajshashi

Coast, Port and Estuary Management (CPE) Divisionprovides its services for natural resourcemanagement, disaster risk assessment andmanagement, vulnerability and risk assessment ofecosystem services in the changing climate to delivereffective solutions for infrastructure development,food security and environmental protection.Integrated coastal zone management, salinityintrusion and zoning map, integrated management ofcoastal polders and tidal rivers, land reclamation,coastal morphology, erosion management, dredgingand sediment management for navigabilityimprovement of river and estuary, assessment ofwater availability and productivity in the changingclimate also falls under its arena of activities of CPEdivision. This divison also provide services in Planningand Design of coastal polders/embankment andcoastal erosion protection, Tidal River and sedimentmanagement, island and char development involving

participation of local community, temperature plumedispersion for selection of intake and outfall of powerplants are also included in its major disciplines.

CPE division uses state-of-the-art mathematicalmodelling tools for finding the solutions of coastalzone management issues at present and future, viz;MIKE21 Classic, MIKE21 FM and Delft3D for tidalhydraulics, storm surges, cohesive and non-cohesivesediment transport, river and harbor dredging andback filling rate, erosion and deposition pattern andmorphological changes in the coast, estuary and tidalrivers, MIK21AD, MIKE11AD for salinity intrusion inthe estuary and tidal rivers, temperature dispersionfor inlet and outlet location of power plant and waterquality in the coast and estuary, MIKE21 SW is usedfor wave climate and wave statistics for planning anddesign of polder embankments, river and sea portand navigation channels, shore line protectionmeasures. In continuation of the past, CPE carriedout a good number of projects in Malaysia in 2013.

Coast, Port & EstuaryManagement

18

1919

Assessment of the impact of anticipated

external drivers of change on water

resources in the coastal zone

Most significant external drivers that influence waterresources of the coastal zone of the Ganges deltawere identified through participatory approach.These are transboundary flow, population growth,land use change, climate change, water managementpractice and water infrastructure development,number of scenarios were also developed combiningthe drivers. IWM conducted a comprehensive studyto assess the impact of anticipated external drivers ofchange on water resources in the coastal zone usingstate-of-the-art modelling technology for differentscenarios. The change in trans-boundary flow in lastforty years has shaped the water availability in theGangetic delta. The coastal region of the Gangesdelta becomes saline in the climate change scenariothan the present condition. The increase ofprecipitation and rise of sea level in the changingclimate are likely to cause prolong drainagecongestion in the coastal polders with higher a depthof inundation.

The study analyzes the potentials of drainageimprovement by sub-polderization considering landlevel, canal system, road-network and tidalcharacteristics of peripheral rivers. Sub-poldering canprovide better drainage management involving localcommunity and reduces high/low land conflicts,opportunity for natural tidal movement into a sub-polder for raising of low-lying area, counteracting thesubsidence of soil and sea level rise, and easymaintenance of infrastructures. The study alsoassessed future population and domestic waterdemand.

Techno-economic feasibility and

environmental study for the development

of sea port at Rabnabad channel in the

Patuakhali district

For a smooth and balanced economic growth as wellas social development in the central coastal zone,establishment of a sea port was felt essential. IWMcarried out a techno-economic feasibility andenvironmental study in this respect.IWM study included site selection analysis of theproject to select and recommend the most preferablesite for the new sea port. Between the two sites,Rabnabad channel was found more suitable for thesea port. The selection was based on weightedscoring system. The best suitable alignment for anapproach channel is selected considering dominantcurrent direction, available navigation depth andrequirements for capital and maintenance dredging.Planning and design of approach channel and harborwere carried out considering 9m draft vessel.Although some negative impacts were identified inthe study, proper mitigation measures weresuggested to address them. The sea port study wasfound environment friendly, socially acceptable andeconomically viable.

Sea bed level topography of the study area.

19

Bed Level (CD)

Above -1

-4 - -1

-7 - -4

-10 - -7

-12 - -10

-15 - -12

-17 - -15

Below -17

Payra

Bandar

2020

Coastal hydraulics and morphological study

and design of protection measures for

marine-drive road in Cox's Bazar

In order to improve regional connectivity, fishingactivities, tourism and socio-economic developmentMarine-drive road was constructed from Cox's Bazarto Shilkhali in two phases. Since commencement ofthis project, few locations of the Marine-drive roadwere damaged due to sea wave action. Road &Highways Department entrusted IWM along withBUET, DHI (Denmark) and EML (Sri Lanka) to devise along-term erosion protection measures.

The study focused on physical processes that arecausing erosion of the Marine Drive and reasons offailure of the existing protective measures. Problemanalysis includes data on time series wind wave, seabathymetry, sediment and time series of satelliteimageries, modeling tools and consultation with localstakeholders. Wave dynamics, long shore and crossshore sediment transport were analyzed in assessingthe prevailing problems and devising protectivemeasures. Protective measures such as breakwater,groin, revetment, beach nourishment and sleepingdefense were investigated as long-term protectivemeasures. The study finds a combination ofrevetment and beach nourishment is the bestsolution for the protection of Marine Drive on longterm basis which is termed as "Sleeping Defense".

Coastal polder improvement in the

changing climate

The coastal embankment system has been gradually builtduring the last 50 years for intensification of agricultureand socio-economic development of coastal area. Theembankments were designed with no regard to cyclonesurges, and very little regard to waves. Crest height of theembankments was determined as "the maximum normalhigh tide" (as recorded during 1960-1968) plus afreeboard of 5 feet.

In the Coastal Embankment Improvement Project (CEIP-2012) of BWDB, the design crest level and side slope ofembankment for selected 17 polders were establishedconsidering storm surge level of 25 year return period,monsoon water level of 25 year return period, freeboardallowing 5 l/m/s overtopping, sea level rise, increase ofprecipitation and wind speed in the changing climate andland subsidence.

All 139 polders are not exposed to cyclonic storm surges,some interior polders are susceptible to overtopping bymonsoon water level. Considering this fact, sea facingpolders are designed considering storm surge level andinterior polder based on monsoon water level. Resilienceof the present drainage system of polders against climatechange was assessed and adaptive measures weredevised and suggested for implementations. BangladeshWater Development Board has under taken a project forimplementing climate resilient measures for 17 coastalpolders.

The main knowledge gap is to know the response of thepuerperal rivers and sediment distribution in the coastalarea in the changing climate.

Marine-drive road in Cox's Bazar

Criteria for designing of crest level of coastal polders

under CEIP, BWDB

20

Installation of Workhorse Sentinel ADCP

3

1

1

5

Surge level under CC Condition: Considering SLR (50 cm and increasing wind speed 10%)

Mean Sea Level

Design Embankment Crest Level

(Polder 35/1)River Side Country Side

Design Crest Level6.50 mPWDWave Due to Cyclonic Wind

Existing Crest Level, 3.80 mPWD

Existing Embankment

50 cm

Mean Tide Level

50 cm SLR

Wave Run-Up + Overtopping

Considering Overtopping 5 l/s/m

30 cm Land SubsidenceWave Run-Up = 1.66 m

Storm Surge Level = 4.54 mPWDSurge Height + Tide

Detailed design of all works related to

bypass channel from Timah Tasoh dam to

straits of Malacca

In order to protect Kangar city of Perlis against severeand frequent flooding, a bypass channel was plannedfor implementation to cater the excess flow from theTimah Tasoh Dam to Straits of Malacca. IWM wasentrusted to carry out hydraulic modelling study forthe detailed design of the bypass channel, tunnel ,weirs and tidal barrage. The study focused on theestablishment of the outflow from Timah Tasoh damat different return period from rainfall runoff, (ii) indetermining the channel type whether it is earthen orlined or both from dam to Malacca Strait, (iii)optimizing channel section at all segment, (iv)selecting the number of weirs and its optimumheight, (v) finalizing the shape of the tunnel (vi) andoptimizing dimensions of the tidal barrage.

An extensive hydraulic modelling has been carried outto achieve the desired outputs for the successfulcompletion of the study. Hydrological model wascarried out to finalize the 100 year return flow formTimah Tasoh Dam whereas hydrodynamic modelincorporating 26 proposed bridges was carried out tofinalize the channel type and sections, tunnel sectionand barrage dimensions.

A view of Timah Tasoh, Malaysia

21

Climate change and salinity intrusion in the

Southwest coastal zone of Bangladesh

In a changing climate, saltwater intrusion is expected toworsen the water availability in the low-lying coastal areasof Bangladesh. This study quantifies the relationshipbetween climate-induced changes in sea level,temperature, rainfall, changed river flows from theHimalayas, and the spread and intensity of salinization onriver water in the coastal zone for 2050.

The study takes into account the effects of B1, A1B and A2emission scenarios on temporal and spatial variation ofsalinity level. The findings indicate that climate change islikely to cause significant changes in river salinity in thesouthwest coastal area of Bangladesh by 2050. Thepresent freshwater availability in the south central zone islikely to be lost in A2 scenario. These changes are likely tolead to significant shortages of drinking water in thecoastal urban areas, scarcity of water for irrigation for dry-season agriculture, and significant changes in the coastalaquatic ecosystems. Changes in the availability offreshwater fish will likely affect the composition ofcapture fishery, although the increase in brackish waterwill enhance opportunities for brackish wateraquaculture.

Salinity isohaline (2 ppt) at base and climate changeconditions (35 cm and 67 cm sea level rise)

67 cm Sea LevelRise _ 2050

35 cm Sea LevelRise _ 2050

Base _ 2012

DistrictBoundary

Water Bodies

Salinity 2 ppt

Barisal

67 cm SLR(2050)

35 cmSLR2050

Base condition(2012)

Sufferings due to flood in Bangladesh

22

Flood Management (FMG) Division provides supportin hydrological assessments, designing ofhydrological monitoring networks and informationsystems, flood mapping, flood risk and damageassessment, flood insurance, real-time floodforecasting and operational water managementsystems, land use and climate change studies andflood mitigation planning including design andoperations of hydraulic structures. The divisionpossesses cutting edge technology, modelling toolson flood management, flood forecasting and climatechange issues.

The main strength of FMG is its sound experience inmaintaining and updating of all Regional Modelsincluding the General Model developed earlier in thethree phases of Surface Water Simulation ModellingProgramme. The division has been continuing toprovide technical support to Flood Forecasting andWarning Centre of BWDB in its routine floodforecasts in the past decades. The Divisiondeveloped the Ganges Brahmaputra Meghna (GBM)basin model which is capable of increasing the leadtime of flood forecasts as well as a tool to assessclimate change impacts and make water resourcesassessments on a regional context.

World wide accepted modelling tools such as MIKE11, MIKE GIS, MIKE FLOOD, MIKE BASIN, FLOODWATCH, MIKE CLIMATE CHANGE are being used inthe division to address a wide range of watermanagement issues. Other modeling tools such asSWAT and WRF are also being used for developingand assisting hydrological activities carried out bythe division.

Important projects carried out by FMG in 2013include Water Resources Management in Haor Areaof Bangladesh for JICA Study, ImplementationSupport Services for Kalni-Kushiyara RiverManagement Project, Integrated water ResourcesAssessment in Bangladesh with CSIRO of Australia,Water availability, demand and adaptation optionassessment of the Brahmaputra River Basin underclimate change under joint collaboration withICIMOD-HICAP, Flood Forecast and InundationModeling in Bagmati Adhwara Basin, India, Indexbased flood insurance etc. In addition, the divisioncontributed to train IWM professionals and clients inthe field of weather research and forecast model,disaster risk reduction and advanced mathematicalmodeling technology for flood managementapplications at home and abroad.

Flood Management

23

Village huts affected due to flood in Bangladesh

24

Support of regional and general modelling

tools in developing Bangladesh's water

resources sector planning

Updating of the Regional Models and General

Models is a continuous process which is being carried

out by IWM since 1991. These models provide the

basis for planning of all important water sector

projects of Bangladesh. The general and six regional

models comprises of all river systems of Bangladesh.

The regional models are Northwest Region Model

(NWRM), Northeast Region Model (NERM), North-

central Region Model (NCRM), Southeast Region

Model (SERM), Southwest Region Model (SWRM)

and Eastern Hill Region Model (EHRM) as shown in

the figure.

The General Model (GM) comprises of all major river

systems of the country which are in the six regional

models (RM). The Regional Models comprise of

hydrological (rainfall-runoff) model and a

hydrodynamic (river/channel/floodplain hydraulics)

model. Both rainfall runoff model (NAM) and

hydrodynamic (HD) model are calibrated and

validated against observed data. MIKE 11 of DHI

were applied in developing these models. The

modelling tools were extensively used in several

projects at home and abroad.

Upgrading flood forecasting system for

increasing lead time introducing location

specific flood warning

In order to strengthen the existing flood forecasting

system and capacity development of FFWC, a

research & prediction modelling study was

undertaken jointly by FFWC and IWM. The overall

objective of the study, CDMP II, is to improve flood

forecasts to meet the demand of end users by

increasing lead-time and expanding forecasts to

places of national interest.

In the study, several tools were developed/ updated

including Ganges Brahmaputra Meghna (GBM)

Model, Weather Research and Forecast (WRF) Model

of GBM basin, and a database with real time data

aggregation and processing system. The study

developed an automatic technique of estimating

cross-boundary inflow of major rivers using the

stated tools. Besides, a system of generating flood

forecast at the target structures has been devised

under the study.

GBM Basin model for boundary flow estimation

Plot of automatically estimated boundary flow

Automatic Boundary Forecast

Real Time

Discharge(m3/Sec)

5 days Forecast

Bahadurabad, Jamuna

Hardinge Bridge, Ganges

06-Oct

35000

30000

25000

20000

15000

10000

5000

0

09-Oct 12-Oct 15-Oct 18-Oct

Amalshid, Kushiy ara

TIBET, CHINA

NEPAL

MYANMAR

INDIA

INDIA

INDIA

Barak Basin

Brahmaputra Basin

Ganges Basin

Regional Models in

NERMNWRM

NCRM

SWRM

SERM

EHRM

Bangladesh

Hardinge Bridge BahadurabadAmalshid

BANGLADESH

BAY OF BENGAL

North Central RegionNorth Eastern RegionNorthWest RegionSouth East RegionSeuthWest Region

Eastern Hilly Region

50 50 Kilometers0

N

LEGENDInternational Boundary

River Network

Water level (BWDB)BWDBRegistering Stations

Discharge withWL (BWDB)

B A Y O F B E N G A L

Hydrological Boundary

Flood risk management project for Cagayan de

Oro river in the Philippines

IWM carried out mathematical modelling study for the Flood

Risk Management Project for the Cagayan De Oro River in

Mindanao Island of Philippines.

IWM services for the study included data collection from

secondary sources, analyzing and processing data, with the

data developing hydrological & hydrodynamic models,

simulation of models to generate runoffs & water levels and

identify impacts, reviewing inundations. MIKE 11 software

was applied in developing these models. Modelling activities

included computation of the rainfall-runoff by MIKE11-NAM

and computation of the river flows and water level by

MIKE11-HD.

IWM consultancy services also included hydraulic analysis

for updating the earlier feasibility study.

The objective of the JICA funded project is to mitigate flood

risk in Cagayan de Oro River Basin through the construction

of flood protection measures, and thereby contributing to

the sustainable and stable economic development in

Cagayan de Oro River Basin.

Cagayan De Oro River in Mindanao island of Philippines

25

Study area and catchment delineation

Cagayan de Or - 2

Cabula Birdge

Cagayan de Oro - 1 Bubunauan - 3

Bubunauan - 2

Bubunauan - 1

Samalauan

Bulanog - 3

Bulanog - 2

Batang - 2

Batang - 1

Sangaya - 1

Sangaya - 2

Pikalin

Bulanog - 1

Lumalaong

Tagite

Kalawaig

Tolohan

Mamala

26

Land level survey by using Total Station

The surveyed data is promptly processed andanalysed in the field and thus maintains a near-onlinequality control procedure.

In the office the data is further verified by the seniorprofessionals before transmitting it to the users andarchived in the database for future applications. Inaddition to collecting data to support modellingactivities, SDT also supports different Governmentagencies in implementation of dredging activities inthe major rivers.

A set of motivated staff comprising of highly skilledprofessionals and field surveyors are engaged for thejobs. The knowledge and skills of the staff arecontinuously updated and upgraded through on-the-job training, discussions, seminars and workshops athome and abroad.

Survey & DataManagement

27

Dredging in the Gorai River

Survey and Data (SDT) Division conducts hydrographicand topographic surveys including collection of waterquality and sediment data to support scientificallybased management of river erosion, flood andirrigation, water supply and sewerage system. SDT alsosupports planning and implementation ofinfrastructure in communication sector, urbandevelopment and dredging.

The specific areas of SDT activities are: hydro-morphological survey including water quality andsediment sampling and analysis in the rivers andestuaries, flood plain topography and engineeringsurvey.

SDT uses the latest survey equipments like TotalStation, RTK-GPS, DGPS, Echo sounder and AcousticDoppler Current Profiler (ADCP) along with specializedcomputer software and facilities to conduct thesurveys.

Beel and fish-sanctuary survey and

preparation of inundation maps of fish

rings under different water level

As a part of the research program aimed to improve

the well-being of aquatic agricultural system-

dependent people in selected 4 villages of

Bangladesh, Worldfish assigned IWM to conduct land

level and fish-well survey and preparation of

inundation map of fish-well at different water level.

As a part of the survey programme, IWM conducted

data collection campaign around the study area of

Rajapur. The data collection campaign was conducted

successfully during June 2013 to August 2013 for

conducting the research activities.

Bathymetry survey and ADCP

measurements for hydro technical

investigations to derive hydraulic design

parameters in Buriganga River

Bangladesh Railway with joint venture of CANARAIL,

DBI, SMEC and AEC engaged IWM to carry out the

survey at five river crossings (Buriganga, Dhaleswari,

Arial Khan, Madhumati and Gomuti) to facilitate the

hydro technical investigation to derive hydraulic

design parameters for bridge crossings of major

waterways and for establishing river training works

and bank protection requirements.

The data collection campaign was completed during

August 2013 to mid September 2013. The important

features included in the survey are traverse survey to

establish control points around the study area, river

bathymetry, ADCP observations.

Based on the decision of the Joint Communiqué,

between Bangladesh and India with the help of Asian

Development Bank, some investment projects was

identified and prioritized to connect regional and

Trans-Asian Railway corridors.

Inundated area Vs. Water level Curve

Bathymetric survey by using RTK -GPS at Buriganga river

Discharge observation by using ADCP and RTK-GPS at Dhaleshwari.

Inundated Area vs. Water Level Curve of the survey area (July, 2013)

0-0.25 0.00 0.25 0.50 0.75 0.00 1.25 1.50

Level (m MSL)

1.75 2.00 2.25 2.50

InundatedArea(squaremeter)

900000

800000

700000

400000

500000

400000

300000

200000

100000

28

Survey for detailed design, social and

environmental studies in construction of Urir

Char - Noakhali Cross-Dam project

Under Bangladesh Climate Change Resilience Fund a

study project was untertaken to prepare the

engineering design and social and environmental

studies of the proposed Urir Char -Noakhali Cross

dam. It is expected that the proposed cross dam will

reclaim 9336 ha of landmass within 7 years on

completion of the cross dam.

Engaged by the World Bank, IWM conducted huge

data collection campaign around the Urir Char and

Jahajer Char island in November and December 2013.

The important data collection features included BM

fly to establish a consistent datum around the study

area, river bathymetry, bank topography, water level,

observation of flow, sediment sampling for the total

sediment concentration and bed material analysis

along the proposed cross dam.

The survey was conducted using state-of-the art survey

equipment like RTK-GPS, DGPS, Total Station, Acoustic

Doppler Current Profile, Echosounder, pressure sensor

and optical level. The data has been processed in the

computers and provided to the study team successfully

within the stipulated time.

Observed discharge and water level at Urir Char- Char Elahi channel.

29

Topographic survey by Total Station at Urirchar.

Discharge at Urir Char-Char Elahi (03/12/2013)

Discharge

35000

15000

5000

0

-5000

-10000

-15000

-20000

-15000

Water Level

5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00

4.5

1.5

2.5

1.5

0.5

-0.5

-1.5

-2.5

-1.5

Time

Discharge(m

3/s)

WL(mPWD)

29

Sponsored

Own Fund

Research

Collaborative

Research

Funded

Research

Projects

Research

& DevelopmentIWM has an exclusive Research & Development Unit thatundertakes significant initiative in research in following areas:

Application of water modelling/ computational hydraulicsCoastal engineeringInformation Technology (IT)Marine scienceOceanographyRiver morphologySediment transportSocial and environmental sciencesGroundwaterGroundwater salinity intrusion in groundwater

The organization is bound by a research policy that can beshown schematically below:

Collaborative research on flood

resilience in urban area- CORFU:

IWM is one of the partner organizations in CORFUwhich is a major project involving 15 European andAsian institutions, funded by a grant from theEuropean Commission, Seventh FrameworkProgramme. The overall aim of CORFU is to enableEuropean and Asian partners to learn from eachother through joint investigation, development,implementation and dissemination of short tomedium term strategies that will enable morescientifically sound management of theconsequences of urban flooding in the future.

Determination of hydro-geological

parameters for SW and SE regions of

Bangladesh, phase-II:

The objective of the project is to estimate hydro-geological parameters and groundwater quality forSW and SE regions of Bangladesh for groundwaterresources assessment, management and modelling,determine approximate function of the interface offresh and saltwater in the coastal zone.

Discharge Measurement through ADCP atKazibacha River

30

Data collection and updating of General,

Regional & BoB models

The main objectives of the project are to identifygaps in data collection under BWDB regular program,install gauges at such critical boundary stations andcarry out updating of the regional models for thehydrological years 2007-08, 2008-09, 2009-10 and2010-11 utilizing collected and secondary data.

Assessment of aquifer vulnerability in

selected upazilas of Khulna region

The specific objectives of the study are- collection ofsalinity data on selected tube wells at extreme watertable conditions in the study area, preparation of themap showing aquifer vulnerability based on salinitylevel and identification of suitable groundwaterpockets based on people's perception.

Assessment of variability of seepage &

percolation loss in irrigated rice

The sole purpose of this research project is to review thepresent practice of assuming a constant S&P rate duringcrop growth period of irrigated rice.

A study on the effect of oblique flow and

char movement in river bank and bank

protection work

This study is undertaken to assess- the effect ofoblique flow on the natural bank of main channeland on the bank protection work of the mainchannel, the comparison among different bankprotection works for critical angle of flow, the effectof migration of char for critical angle of flow,variation of scour depth due to oblique flow in themain channel, additional erosion due to confluenceflow and effect on launching apron due to obliqueflow.

Joint action research on salt water

intrusion in groundwater in the coastal

area:

This extensive research focuses on the- assessmentof the extent of salinity intrusion in the aquifersystem of the study area, aquifer vulnerability withrespect to present extent of saline front line,impacts of sea level rise due to climate change inthe groundwater salinity distribution, identificationof fresh water aquifers and fresh water pockets,changes in salinity distribution for variousdevelopment scenarios, quality parameters ofsurface and groundwater, identification of disasterresilient options and its social acceptability,development of human resources.

Study area

31

Salinity distribution of GW (deep aquifer)

Observation WellEvaporation StationRainfall StationHydrometric StationUpazila BoundaryRiverModel Area

Legend

Legend

Tubewell Location Salinity (ppm)

Upazilla <600

600 - 1750

1750 - 3450

3450 - 5500

>5500

Information and Communication Technology (ICT) unit ofIWM provides technologicl and GIS support formathematical modelling studies and survey activities ofIWM. Following is the brief information about some of ICTactivities in 2013.

Resource profiles, extrapolation domains

and land-use plans

In this project a geo-referenced data-base for the

coastal zone of Bangladesh has been established to

facilitate out-scaling of technologies through

identification of target domains and land use

planning. Various hydro-meteorological data have

been processed, formatted and analyzed In addition,

Rainfall and evaporation stations map, River system

Map, Salinity Map, Digital Elevation Model etc have

been prepared. Finally land suitability map has been

prepared for agricultural crop in selected polder of

coastal zone of Bangladesh.

Salinity information system in coastal zone

of Bangladesh

Desktop based computer application has been

developed under this project to examine salinity

dynamics due to Climate Change. Salinity surfaces

have been created for different climate change

scenario. Salinity in coastal zone has been presented

in raster format that can easily be used to compare

salinity intrusion for different climate change

scenario.

Information &

Communication TechnologyJoint Action Research on salt water intrusion

in groundwater in the coastal area

Under this project existing data have been collected

and reviewed. It has been prepared various maps,

information and concerned study reports from

secondary sources; Impact assessment of abstraction

and possible salinity intrusion in the study area;

Analyses of data for model input; Consistency

checking of secondary data following standard

methods; prepared resource mapping.

Rating

Rating

Range

Range

Rating Range Rating Range

Rating Range

Rating Range

GA

L D

I

T

2.5 (>1.0 m)

5 (0.75 - 1.0 m)

7.5 (0.5 - 0.75 m)

10 (<0.5 m)

2.5 (>2.25 km)

5 (1. 5 - 2.25 km)

7.5 (1 - 1.25 km)

10 (<1 km)

2.5 (<0.5)

5 (0. 5 - 1.5)

7.5 (1.5 - 3)

10 (>3)7.5 (>20 m)

5 (10 - 20 m/d)

7.5 (10 - 20 m/d)10 (Unforced Aquifer)

River

Upazila Boundary

Study Area

Projection : BTM, Everest 1830

Joint Action Research Project

Legend

Manirampur

PhultalaKhanJahanAli

Khalishpur

KhulnaSadar

Dumuria

Keshabpur

Tala

Paikgachha

Batiaghata

Manirampur

PhultalaKhanJahanAli

Khalishpur

KhulnaSadar

Dumuria

Keshabpur

Tala

Paikgachha

Batiaghata

Manirampur

PhultalaKhanJahanAli

Khalishpur

KhulnaSadar

Dumuria

Keshabpur

Tala

Paikgachha

Batiaghata

Manirampur

PhultalaKhanJahanAli

Khalishpur

KhulnaSadar

Dumuria

Keshabpur

Tala

Paikgachha

Batiaghata

Manirampur

PhultalaKhanJahanAli

Khalishpur

KhulnaSadar

Dumuria

Keshabpur

Tala

Paikgachha

Batiaghata

Manirampur

PhultalaKhanJahanAli

Khalishpur

KhulnaSadar

Dumuria

Keshabpur

Tala

Paikgachha

Batiaghata

20 10 0 20

km

Collaborative Research on Flood Resilience

in Urban Area (CORFU)

CORFU is composed of four major work packages viz.

urban growth modelling, hydraulic modelling,

damage assessment and strategy development.

Project work has been emphasized with GIS and RS

procedure especially using urban growth modelling

and flood damage assessment through using flood

damage tools.

Research with CSIRO, Australia on

integrated water resources assessment in

Bangladesh

In this project different types of GIS activity including

Salinity analysis and mapping; catchment

delineation; watershed analysis; preparation of base

map, hydrological map, Topographic map preparation

have been conducted. These outputs have been used

to analysis the study objectives.

SW-KJDRP: Monitoring & evaluation of the

hydrological & morphological conditions of

rivers & drainage problems of beels in the

KJDRP area for the planning of drainage

improvement measures

Activities include Preparation of GIS based contour

maps of basin, flood depth map, map showing

erosion/deposition of tidal basin topography; assist

the study team; preparation of maps for workshops

and reports; DEM comparison for different years.

Kalni-Kushiyara river management project

by using mathematical model and state-of-

the-art survey technique

Major tasks under this project include collecting and

obtaining information on the ownership of land

proposed to be acquired for the project and assess

settlement and land acquisition requirements.

Preparation of the resettlement and land acquisition

action plan on the CS/RS mouza map. Project also

needs other activities like base map preparation,

digital elevation model, Satellite image processing.

Technical and financial proposal for index

based flood insurance product for Sirajganj

district - phase II

Important activities of the project include

preparations of GIS map showing basic geo-physical

settings of the selected zones, Digital elevation and

image processing.

Water governance and community based

management of water resources

In this study Participatory GIS (PGIS) tool has been

used in water resources management and

Participatory Resources Mapping have been

conducted. Total five number of PRA maps has been

prepared for each study site. These are internal canal

map, flood inundation map, three cropping pattern

maps (for Kharif-1, Kharif-2 and Rabi Period). In

addition one Influence zone map has been prepared

to understand how and where PRA has been

conducted with coverage area.

Development phase of water management

infrastructure in Bhola district

Different GIS and RS based work has been done in

this project such as preparation of landuse map,

bankline shifting analysis and erosion-accretion

analysis. Landuse map has been prepared based on

Landsat satellite images through remote sensing

analysis and image classification technique. Landsat

images have also been used for bankline shifting

analysis and erosion-accretion analysis for the Period

2003-2013, 2008-2014 and 2013-2014.

Erosion-accretion status along left bank of Bhola

Island (2003-2013)

33

Human ResourceDevelopmentTraining and Technology Transfer is a regularactivity of IWM aims at updating its resourceswith the new knowledge and technology and tocope with the new challenges in water sector.Following is the brief on the HRD programmesconducted in 2013.

FEBJAN MAR APR MAY JUN

Knowledge

/experience

sharing on

MIKE 21FM

Training on

MIKE 3 -HD &

Salinity

Modelling.

Training on

ArcGIS.

Knowledge

/experience

sharing on

MIKE 21C at

DHI

Training on

MIKE 11.

Training on

ECOLAB at

Dhaka.

Training on

MIKE 21C.

Training on

MIKE URBAN.

Training

workshop on

research

proposal

writing, journal

paper writing,

scientific

presentation &

plagiarism

detection.

Mathematical

Modelling on

Groundwater

Flow and

Saline Water

Intrusion in

the Coastal

Area of

Bangladesh

due to Climate

Change

Training on

Climate

Change &

Emerging

Challenges in

Ensuring Food

Security.

Administrative

training for

IWM staffs

Knowledge

/experience

sharing on

MIKE URBAN

at DHI

Basic GIS

Training on

ArcGIS 10 for

SoB.

Training on

Mathematical

Modeling and

Survey Work

under Pilot

Capital

Dredging.

Training on

Management

Information

System (MIS)

Training for IWMStaff

Training forClients

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34

Training at IWM for staff development

JUL AUG SEP OCT NOV DEC

Basic Training

for Junior

Engineers.

Management

internship at

DHI under

women's water

fund.

GIS Web

Application

Development at

ICIMOD, Nepal.

Orientation

course for

Junior

Engineers (1st

batch).

Training on

Capital

Dredging of

River system in

Bangladesh.

Groundwater

salinity

modelling using

FEFLOW.

Training &

Workshop on

ADCP at San

Diego, USA.

Groundwater

Salinity

Modelling

Internship

training for

WRE students

of BUET.

Training on

Basic ArcGIS.

Training on

Bathymetric

Survey using

HyPack

Software.

Training on

Storm Surge

Modelling using

MIKE 21C.

Training on

MIKE 11.

Satellite

Remote Sensing

application for

Water

Resources

Management.

Training on

Advanced

ArcGIS.

Training on

Discharge

Measurement

by ADCP

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35

Participants in the workshop organized by IWM

36

37

Workshop on knowledge sharing for delta

management in a changing climate

Institute of Water Modelling and Partners of Delta

Alliance Bangladesh Wing organized the workshop on

30 November 2013 in Dhaka. Shaikh Altaf Ali, Senior

Secretary, Ministry of Water Resources graced the

occasion as Chief Guest while Md. Azizul Haque,

Director General, Bangladesh Water Development

Board and Mr Carel de Groot, First Secretary/ Expert

Water, Embassy of the Kingdom of the Netherlands

were Special Guests of the occasion. The workshop

was chaired by Prof. Dr. M. Monowar Hossain,

Coordinator, Delta Alliance Bangladesh Wing and

Executive Director, IWM.

Workshop on sustainable water

management

Dr. A.F.M. Afzal Hossain, Deputy Executive Director

(P&D) and Sardar M Shah-Newaz visited Pakistan to

participate in the International Workshop on

'Sustainable Water Management' during 28-30

October2013 held in Islamabad, Pakistan. The

workshop was organized by OIC Standing Committee

on Scientific and Technological Cooperation

(COMSTECH). In the workshop Dr. Hossain and Mr.

Shah-Newaz acted as Resource Persons.

Workshop on Saidabad WTP Phase III

feasibility study

A workshop was held on 26th September 2013 at

Hotel Sonargoan regarding overview of "Saidabad

WTP Phase III Feasibility Study". Hon'ble Minister for

Information Engr. Hasanul Haq Inu graced the

occasion as Chief guest while Mr. Bhuiyan Shafiqul

Islam, Secretary, Ministry of Planning, Mr. K.M.

Mozammel Hoq, Addl. Sec., Ministry of LGRD&C

attended as Special Guests. The occasion was chaired

by Engr. Taqsem A Khan, MD, DWASA.

Important Events

Guests on dias in the workshop on Knowledge Sharing

for Delta Management in a Chaning Climate

37

38

Workshop on establishment of monitoring

network and mathematical model study to

assess salinity intrusion in groundwater in

coastal area of Bangladesh due to climate

change

BWDB and IWM jointly organised the workshop at

BIAM Auditorium, Dhaka on 08 September 2013.

Shaikh Altaf Ali, Senior Secretary, MOWR graced the

workshop as Chief Guest. Mr. Didarul Ahsan,

Managing Director, BCCT and Additional Secretary,

MOEF was present as Special Guest. Mr. Md. Azizul

Haque, Director General, BWDB chaired the

occasion.

Workshop on drainage congestion and

improvement of polders under Satkhira

DistrictA workshop on drainage congestion and

improvement of polders 1, 2, 6-8 and 6-8 (extension)

under Satkhira district was held on 9 February 2013.

Dr. A.F.M. Ruhul Haque MP, Hon'ble Minister for

Health and Family Welfare graced the occasion as

Chief Guest. Engr. Sheikh Mujibur Rahman MP,

Satkhira 1, Alhaj M A Jabbar MP, Satkhira 2 and Mr

Md. Afzal Hossain, Addl. Director General (Planning),

BWDB was present as Special Guests. The

programme was chaired by Dr. Muhammad Anowar

Hossain Haoladar, Deputy Commissioner, Satkhira.

Workshop on detailed feasibility study in

connection with protection of Ramgati and

Kamal Nagar upazilla and adjacent areas

under Laxmipur district from the

continuing erosion of the Meghna River

The workshop was held on 31 March 2013 at

Laxmipur. Begum Faridunnahar Laily, MP graced the

occasion as Chief Guest. Alhaj A.K.M Shahjahan

Kamal, Administrator, Laxmipur Zila Parishad, Alhaj

Abu Taher, Mayor, Laxmipur Pourashava and Md.

Abdul Mannan, Addl. Director General (Planning),

BWDB was present as Special Guests. Mr. A.K.M

MIzanur Rahman, Deputy Commissioner, Laxmipur

chared the occasion.

eWater's Source 2013 conference in

Australia

Prof. Dr. M. Monowar Hossain, Executive Director,

IWM visited Australia during 19—20 September 2013

to attend the ‘Source 2013 Conference’ organized by

eWater Australia and held at Gold Coast. The

Executive Director presented keynote paper at the

conference titled ‘Challenges of IWRM in South Asia:

Bangladesh’.

Contract agreement for design and

construction supervision of IWM

Headquarters building

A contract agreement was signed between IIWM and

VolumeZero Ltd. on 23 July 2013 at IWM for the

design and construction supervision work of IWM

Headquarters Building at Sector 15, Uttara Phase-III,

Dhaka.

Prof. Dr. M. Monowar Hossain, Executive Director,

IWM and Mr. Md Foyez Ullah, Managing Director,

VolumeZero Ltd signed the contract agreement on

behalf of their respective organizations. The signing

ceremony was also attended by Senior professionals

of IWM and VolumeZero.

Exchange of contract agreement between IWM and

VolumeZero Ltd.

Executive Director, IWM (far left) with Prof. Gary Jones (2ndfrom left), EO eWater Australia, Prof. A.K. Gosain, Dept ofCivil Engg., IIT, Delhi (3rd from left) and IWMI representative(far right).

38

VISITS TO IWM

Executive Director hands over

IWM Crest to Professor Dr.

Shamsul Alam, Member, GED,

Planning Commission during his

visit to IWM on 01 June 2013.

Executive Director hands over IWM

Crest to Prof. Dr. Abdus Sattar

Mandal, Member, Agriculture,

Water Resources and Rural

Institutions during his visit to IWM

on 19 June 2013.

Executive Director, IWM hands over

IWM Crest to Md. Jahir Uddin

Ahmed (ndc), Chairman, BADC

during his visit to IWM on 02 July

2013.

Executive Director hands over IWM

Crest to Prof. Dr Muhammad Fazlul

Bari, Member, Physical

Infrastructure Division , Planning

Commission during his visit to IWM

on 08 June 2013.

Executive Director, IWM hands over

IWM Crest to Dr. Md. Shamsuddoha

Khondakar, Chairman, BIWTA during

his visit to IWM on 04 July 2013.

Acronyms

ADCP Acoustic Doppler Current Profiler

BAEC Bangladesh Atomic Energy Commission

BUET Bangladesh University of Engineering and Technology

BIWRA Banlgadesh Integrated Water Resources Assessment

BMDA Barind Multipurpose Development Authority

BWDB Bangladesh Water Development Board

CDMP Comprehensive Disaster Management Programme

CEGIS Centre for Environment and Geographical Information Service

CEIP Coastal Embankment Improvement Project

CORFU Collaborative Research on Flood Resilience in Urban areas

CSIRO Commonwealth Scientific and Industrial Research Organization

CWASA Chittagong Water Supply and Sewerage Authority

DeVcon DevConsultants Limited

DHI Danish Hydraulic Institute

DWASA Dhaka Water Supply and Sewerage Authority

DPHE Department of Public Health Engineering

FCD Flood Control and Drainage

FCDI Flood Control, Drainage and Irrigation

FFWC Flood Forecasting and Warning Centre

IWRM Integrated Water Resource Management

JICA Japan International Cooperation Agency

KJDRP Khulna-Jessore Drainage Rehabilitation Project

LGRD Local Government and Rural Development

NWMP National Water Master Plan

RHD Roads and Highways Department

SoB Survey of Bangladesh

SIMS Scheme Information and Management System

STP Sewer Treatment Plant

WARPO Water Resources Planning Organization

WMIP Water Management Improvement Project

WMO Water Management Organization

40

SOB

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

2010

9

6

5

7

8

11

7

6

4

5

6

7

6

4

5

96

2011

10

7

6

7

8

12

7

7

5

5

7

8

8

4

6

107

2012

12

8

6

9

7

13

7

8

6

5

7

9

8

4

7

116

2013

13

9

7

9

7

13

8

9

7

6

8

10

8

4

7

125

Field of Expertise

Climate Change

Bangladesh Bridge Authority

BMD

A

TTU

USA

NA

HR

IM

Mal

aysi

a

PS

11%

SS

14%

AS

18%

JS

21%

JE

36%

Professional Staff in 2013 (regular)

Female and male staff ratio in 2013

Male

88%

Female

12%

11

80

13

92

25

115

24

170

32

260

2009 2010 2011 2012 2013

House 496, Road 32, New DOHS, Mohakhali, Dhaka-1206, BangladeshTel : (88-02) 8822105-6, 8824590-1, 8827902, Fax : (88-02) 8827901E-mail : iwm@iwmbd.org, Website : http://www.iwmbd.org