Overview of existing flash flood forecasting and warning

infrastructures of NMHSs of Southeast Asia

Hanoi, 20th November 2017

1. Current hydrometeorological network

MËu Danh

Ninh Minh

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B¶n ®å m¹ng l-íi tr¹m khÝ t-îng toµn quèc

chó thÝch

Tr¹m khÝ t-îng c¬ b¶n: 168

Tr¹m khÝ t-îng ®· kiÓm tra n¨m 2003: 65

• 194 meteorological stations

• 755 rainfall gauging devices

1. Current hydrometeorological network

• 453 hydrological stations

1. Current hydrometeorological network

• 7 radar stations

RGB

Water vapor

Atmospheric Windows

O3(Ozone)

CO2(Carbon dioxide)

True Color Image Band Wavelength

[µm] Spatial

Resolution

1 V1

Visible

0.46 1Km 2 V2 0.51 1Km 3 VS 0.64 0.5Km 4 N1

Near Infrared

0.86 1Km 5 N2 1.6 2Km 6 N3 2.3 2Km 7 I4

Infrared

3.9 2Km 8 WV 6.2 2Km 9 W2 7.0 2Km

10 W3 7.3 2Km 11 MI 8.6 2Km 12 O3 9.6 2Km 13 IR 10.4 2Km 14 L2 11.2 2Km 15 I2 12.3 2Km 16 CO 13.3 2Km

5

VIS

IR1

IR2

IR3(WV)

IR4

MTSAT BAND

Aerosol Water cloud and Ice cloud Size of the cloud droplet Fog , Hot spot(Forest fire)

SO2(Sulfur dioxide)

1. Current hydrometeorological network

2. Organizational structure and human resources

NHMS

MONRE

Director-General

1. Tay Bac (Northwest) 2. Viet Bac (Mid Northern) 3. Dong Bac (Northeast) 4. Dong Bang Bac Bo (Red River Delta) 5. Bac Trung Bo (North Central) 6. Trung Trung Bo (Mid Central) 7. Nam Trung Bo (South Central) 8. Tay Nguyen (Central Highland) 9. Nam Bo (Southern)

Assistant Offices institutional units 1. Administration Department 3.Finance and planning Department

2. Personnel Department 4. S&T and International cooperation Department

5. Aero-Meteorological Observatory

6. Center for Application of Hydro-Met. Technology 7. Hydro-Meteorology Survey Detachment

1. National Centre for Hydro-Met. Forecasting (140 people) 2. Hydrological, Meteorological and Environmental Station Network Center 3. Hydro-meteorological Data and Information Center 4. Project Management Office

Regional Hydro-Meteorological Centers

8. Hydro-met Journal

1. Forecast weather patterns for extensive rainfall based on the satellite, radar images and observations

Flash flood forecasting and warning procedure

3. National capacity for flash flood forecasting and warning

Observed rainfall Satellite image

Radar image

2. Analyze and forecast rainfall using the numerical weather models for different provinces and river basin catchments.

3. Overlap the observed and forecasted rainfall, land cover, hill’s slope, river network and provincial maps to obtain the flash flood risk map.

3. National capacity for flash flood forecasting and warning

Observed rainfall Forecasted rainfall Potential flashflood map

4. Analyze the forecasted rainfall pattern and potential flash flood map, then issue the flash flood forecasting and warning

5. National capacity for flash flood forecasting and warning

The NCHMF has been applied the Flash Flood Guidance System (FFGS) software provided by the Mekong River Commission (MRC) for flash flood forecasting and warning in Vietnam since 2009

3. National capacity for flash flood forecasting and warning

3. National capacity for flash flood forecasting and warning

Flash flood and landslide risk map for 14 provinces in Northern Vietnam (based on hill’s slope and land cover maps)

4. Collaboration with emergency management, governmental and non-governmental agencies

Thank you for listening