Date post: | 05-Jan-2016 |
Category: |
Documents |
Upload: | phebe-warner |
View: | 217 times |
Download: | 4 times |
Thailand Country Report on Flood
Thai National Mekong CommitteeOctober 2003
Mekong basin in Thailand comprises of 5 sub-basins:
River basin Catchment area (sq.km.)
1. Kong 57,422 2. Kok 7,895 3. Chi 79,477 4. Mun 69,700 5. Tonle Sap 4,150
Total 188,644
KongKong
ChiChi
MunMun
Tonle SaTonle Sapp
KokKok
Lesson learned
National Water Resources Committee (NWRC) chaired by the Deputy Prime Minister, has responsibility for the overall national water resources
Dept. of Water Resources (DWR), found in Oct 2002, has its power and functions to be a focal point for natural water management & serve as a secretary of NWRC
Past activities:1. Selected 15 provinces as flood risk areas2. Organized workshops to coordinate with the flood risk provinces,
to prepare & integrate plan to solve & mitigate flood, & setup flood mitigation center
3. Collected & analyzed work plans & projects of each province urgently in order to request budget from the Government. The Government has supported 181 projects, which cover 15 provinces, with the budget of about 624 million Baht.
15 Provinces Flood Risk Areas
North: Petchabun, Pichit, Phrae, Sukhothai, and Nakorn Sawan
Northeast: Chaiyaphum, Roi Et and Ubol Ratchathani
Central: Ang Thong, Nonthaburi, Pathum Thani, and Chanthaburi
South: Pattanee, Nakhon Si Thammarat, and Yala
Main Flood-prone Areas in the Lower Mekong Basin
Long-term Implementation Plan
• DWR has now completed two projects on water resources management plan including flood problem solving namely Ping Basin & Pasak Basin
• Projects for other two basins are on-going
•Other seven basins are planed for next year
Recommendations
Flood problem solving:- Identify risk area & flood prone- Install flood warning system- Land-use zoning - Improve natural wetland- Institutional strengthening- Improve distribution & drainage
system- Providing polder system- Construct diversion canals/tunnels to
divert excess water directly to the sea
Recommendations (cont.)
Non-structural measures:• Improve water management of existing & natural
wetlands• Setup design standards & study on the flood
impacts from overall basin structure, review design regulations & review efficiency of all construction works
• Floodplain management - land use guidance, identify risk areas & control
groundwater extraction - flood forecast & warning system, flood emergency
management process (flood encounter system) & recovery measures
Non-structural measures
• Reforestation to protect soil erosion • Promote conservation campaigns
for forests, canals, rivers & ditches • Land use zoning• Water fund establishment• Amend relevant laws & regulations• Develop entire basin management
Recommendations (cont.)
Structural measures• Install flood protection system in urban
areas• Promote the Royal Initiated “Monkey Cheek”
(detention pond) Project• Construct cutoff channel/diversion, &
remove the runoff obstructions• Construct pumping stations & improve
drainage system • Develop tributaries to store/retard flood,
develop dikes, & improve river channels• Develop large scale water resources project
Recommendations (cont.)
Outline of data flow for operational flood forecasting & flood warning
Data (1)xx rain gauges
Data (2)yy WL gauges
Data (3)Reservoir releases
Agency (1): MDRainfall forecasts
Data (4)MRC
Mainstreamforecasts
Agency (2):DWR,RIDStreamflow monitoring
Agency(3):RID,EGAT
Reservoir operation
Agency(4): DWR,RID,MD
Flood forecasts
Agency(5):DWR,RID,MD,DDPM
Flood warnings
Agency (6):DWRDamage control
Agency (7): RIDDamage control
Agency (8): DDPMDamage control