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035 _a.b1245509x
099 9 _aAIT Thesis no.WM-24-16
100 1 _aJirayuth Srisat
245 1 0 _aEmpirical and modeling approach for flash flood warning system at MaeSai, Thailand
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2024
300 _a199 leaves :
_bill.+
_e1 online resource
490 1 _aThesis;
_vno. WM-24-16
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Water Engineering and Management
502 _aThesis (M. Sc.) - Asian Institute of Technology, 2024
520 _aMae Sai District, Chiang Rai located at border between Thailand and Myanmar, have the shared market with experiences recurrent flash flood. Main impact of the flash flood was property damage for business villagers. The present study aimed to analyze meteo hydrological conditions that cause flash floods. Then, develop empirical and modeling approach. Integrate the flood criteria, and finally propose flood warning framework. Rainfall data is limited and not available in Myanmar side. Eight rainfall stations and water level data from Thailand side were collected to analyze the rainfall, flood characteristics, and flood criteria. There are totally 13 flood events from years 2017 to 2022. Fieldwork and field investigation were carried out to have comprehensive information during the flood. The flood model is to use RRI model as a computational tool with Global Satellite Mapping of Precipitation NOW (GSMaP NOW) as satellite rainfall data. The results showed that the peak water level and 15-minute average weighted rainfall had the strongest correlation (0.73) among other meteo-hydrological parameters correlation, indicating that higher flood peak levels occur with heavier rainfall. However, flooding in the Mae Sai can occur even when rainfall is moderate because the initial water level in Sai River is high at the time. It was found that even 20 mm of rainfall within 24 hours could cause flooding at a high water level of 1.6 meters. Therefore, the flood is classified to the type of single and consecutive rainfall. Its criteria are based on rainfall and initial water level. For flood model calibration and validation, it provides 0.83 and 0.19 in terms of NSE respectively. A fieldwork and field investigation revealed that Mae Sai people need flood warnings 3-6 hours in advance, and flood warning using the public address speaker and broadcasting tower is the most required. Flood warning system framework was developed based on the present work both technical, management, and communication aspects.
650 0 _aFlood warning systems
_zThailand
_zMae Sai (Amphoe)
650 0 _aFlood forecasting
_zThailand
_zMae Sai (Amphoe)
700 0 _aSutat Weesakul,
_eChairperson
700 1 _aBabel, Mukand S.,
_eExamination Committee
700 0 _aNatthachet Tangdamrongsub,
_eExamination Committee
710 2 _aRTG Fellowships,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis;
_vno. WM-24-16
856 4 0 _a
_3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B22097
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909 _aBarcode : -
_bCREATED : 2025-01-05
_cRECORD # : i13546004
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
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