State of IsraelMinistry of Housing and Construction

Survey of Israel

The Hydrological project case

Survey of Israel

Content

Introduction To the Survey of IsraelThe operation assumptionsThe operation assumptionsThe main responsibilities and projectsThe Hydrological data enhancement The Hydrological data enhancement projectprojectConclusions

Survey of Israel

PolicyPolicyLicensing SurveyorsSurvey Regulations

Cadastre

Mapping &

GeodesyResearchProfessional lead

Mapping &GIS

The Survey of Israel is a governmental agency for Mapping, The Survey of Israel is a governm ental agency for M apping, Geodesy, Cadast re and Geoinform at ics

The SOI building in 1930

• Established in 1920 during the British Mandate The SOI building in 1930the British Mandate

• ~ 250 employees. • Annual budget of ~ €25M• Annual budget of ~ €25M• The DG leads the Israeli

inter-governmental committee for GISfor GIS

The SOI building today

Challenges and problem sChallenges and problem sThe State of Israel is facing some tough challenges:The State of Israel is facing some tough challenges:

High population density Rapid urbanization Rapid urbanization Severe shortage in land Serious scarcity in waterGlobal problems:

Global warmingEnergy crisisEnergy crisisRising cost of basic commodities

Specific problemSpecific problemSecurityPolitics

55

The Dead Sea

Politics

66

Effective solution requires:• Reliable geospatial information which is based on a common • Reliable geospatial information which is based on a common

geodetic framework • Data integration and sharing among agencies• Data integration and sharing among agencies

DemographicsDemographics

Natural resourcesNatural resourcesNatural resourcesNatural resources

ClimateClimate

Industry and businessIndustry and business

LandLand

Planning and developmentPlanning and development

LandLand

77

Homeland SecurityHomeland Security

Survey of Israel

• The cadastral system in Israel is a register of properties following the Torrence principles. following the Torrence principles.

• The state guarantees the title (property location, delimitation and ownership).

• The Survey of Israel is responsible for the geodetic accuracy • The Survey of Israel is responsible for the geodetic accuracy and accordance to the zoning plan .

• Land settlement, covers nowadays about 96% of the State area and about 96% of the State area and includes about 16,000 blocks that contain 800,000 parcels.

• The annual number of new mutation plans approved by the SOI is 1200-1600 plans.

8

1600 plans.

Survey of Israel

• Coordinate Based Cadaster (CBC)• Maritime Cadaster• Boundaries recording plan.• 3D Cadaster• 3D Cadaster

Cloud based servicesCloud based services• On-line Cadaster information system.• On-line QA and coordinates transformation services.• Integration of planning, surveying, registration and construction • Integration of planning, surveying, registration and construction

procedures.

The Survey of Israel is responsible for the Geodetic Infrastructure of Israel, including the

• Horizontal Control - a network of 22 continuously operating reference stations

• Vertical control – a network of Benchmarks • Vertical control – a network of Benchmarks surveyed with high accuracy and a geoidundulation model

Survey of Israel

• Since 1991 the Survey of Israel maps the ent ire count ry • Since 1991 the Survey of Israel maps the ent ire count ry using 1:40000 aerial photography and field surveys.

• The Nat ional Topographic Database includes Building, • The Nat ional Topographic Database includes Building, Transportat ion, St reet names,Land Cover, Hydrology, Land Cover, Hydrology, Elevat ion, and many morelayers.layers.

Survey of Israel

• Color Ortho-photographes at a resolut ion of 25 cm on an • Color Ortho-photographes at a resolut ion of 25 cm on an annual basis.

• The Ortho - photographes are produced using digital • The Ortho - photographes are produced using digital cameras (including the innovat ive A3 camera from Visionmap)Visionmap)

• These data are used by all the governmental offices for planning, const ruct ion, management , Emergency services and more.and more.

• A national website that disseminates more than 140 governmental • A national website that disseminates more than 140 governmental layers in a friendly user interface.

• The Geo-portal supports user generated content, various software • The Geo-portal supports user generated content, various software interfaces (APIs), eight tailor-made application to retrieve data (Census data, aerial photographs, bus routes, planning maps, etc.) and more.etc.) and more.

Special applications developed in collaboration with government agencies

Ten special applications were developed in collaboration with the different governmental agencies including:different governmental agencies including:

The transportation ministry – Public transportation

The Census Bureau – Demographics data

Israel Land Authority – Zoning maps

Israel Meteorological Service – climate and weather data

Ministry of Environmental Protection - Cellular towers, real Ministry of Environmental Protection - Cellular towers, real time air quality information

TopoCad Idea - Integration of functions

Survey of Israel

TopoCad Idea - Integration of functions in one system

Nat ional AerialNat ional AerialPhotographs

Archive

Survey of Israel

Isprs - Serving Society with Geoinformatics, 11-17 November 201317

Survey Regulation support new mapping technologies and standards

Survey of Israel

technologies and standards

Mobile mappingSatellite sensors UAV mapping

Laser scanningAdvanced GNSSDigital geodetic leveling

Survey of Israel

1. The flow channels (streams+ tunnels)1. The flow channels (streams+ tunnels)

2. Water bodies

3. Hydrographic lines (water falls, dams , etc.)3. Hydrographic lines (water falls, dams , etc.)

4. Water sources (springs, wells, holes, etc.)

5. Basins

Survey of Israel

The starting point…..The start ing point…..

Last updated 2004 A vast demand for up to date dataLast updated 2004 up to date data

Strong demand

Was not exist

Strong demand from users to build

network and stream order

Many hydro line where collected

for DEM, but with

Most of the users demanded for DEM, but with

no hydro function

demanded generalization

Survey of Israel

• The Kishon basin before• The Kishon basin after • The Kishon basin before• The Kishon basin after

Sinking point

Strahler’sStream Order

The technical approachThe technical approach

National basins & streams plan 34:MAPITOPO: WATER_FLOW & MAPITOPO: WATER_FLOW &

CARTONAMESMAPI

TERRAIN DATA

Water authority :BASINS divisionlayer

Select databy

Basin

ATTRIBUTES:BAS_IDNET_IDNET_IDEDITSOURCESTRAHLERLINK_IDFLIPFNTNACCLEN

TERRAIN_<BASIN ID>HYDRO_<BASIN ID>

ACCLEN

AutomaticAutomatic processes for Data extraction and work environment preparationThe data extraction was based on the basins division layer

DTMDTM

Automatic process for hydro data editing

DTMDTM

FLOW STREAMSFLOW STREAMSPortraying the original stream data

Developing flow model based on DEM

WATER_FLOWWATER_FLOW

Basins Plan Basins Plan 34 34 & streams& streams

Define groups of line and connecting to one network

Comparing to plan 34 and carto data

Building nodes and connectivity

WATER_FLOWWATER_FLOW

Basins Plan Basins Plan 34 34 & streams& streamsnamesnames

Interactive processes

Adding lines and connectivity

Manual editing WATER_FLOWWATER_FLOW ArcArc--nodenode

Stream NetworkStream Network

QAManual editing

Network creation

Defining the SINKS

Additional iterative processes

WATER_FLOWWATER_FLOWNODESNODES

Python scriptsPython scripts

ArcArc--nodenodeConnectionConnection

QA

loopsJunctionsConnectivity

Network analysis

Strahler’s Stream Order calculation

Lines direction -Flip

Heights QA

Upstream Acc. Length

)Upstream Accumulation Length( )Upstream Accumulation Length(

Strahler’sStream OrderStrahler’sStream Order

SINKING POINT

Names placement

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• The national water authority – national level planning, Flow models, flood models, streams

• The national water authority – national level planning, Flow models, flood models, streams channel maintenance.

• Local water authorities – as above on local/basin • Local water authorities – as above on local/basin level, Monitoring the use of water sources.

• Ministry of Agriculture – Soil erosion models, • Ministry of Agriculture – Soil erosion models, estimation of flood damages to farmers,

• Local authorities & emergency authorities –flood damages preparedness.flood damages preparedness.

• Survey of Israel – cartography, map portal.

Current statusCurrent status

Green - 135 finished basins – in final QA

Blue - 45 in production – most of whichAre internal sinking

Enhanced basins layerEnhanced streams layer

• Hydrology data product – Free, as part of the SOI • Hydrology data product – Free, as part of the SOI line of products (SHP, GDB)

• Map portal – www.govmap.gov.il in all • Map portal – www.govmap.gov.il in all web/mobile platforms

• TOPOCAD• TOPOCAD