1 AIT Asian Institute of Technology

Daily flood forecasting for Chanthaburi, Thailand

AuthorSongvit Luang-on
Call NumberAIT Thesis no. WM-00-05
Subject(s)Flood forecasting--Thailand--Chanthaburi
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
PublisherAsian Institute of Technology
AbstractArtificial Neural Networks (ANNs) are being used increasingly to predict and forecast water resources variables. An artificial neural network (ANN) is a flexible mathematical stmcture, which is capable of identifying complex nonlinear relationship between input and output data sets. Daily flow forecasting is important in coastal rivers and estuaries for the purposes of flood control and mitigation. The present study demonstrates the application of NNs to realtime forecasting of daily river stages and flood mnoff. A Neural Network Model with Back-Propagation Algorithm (BPNN) is presented for forecasting daily water levels and discharges at two gauging stations, namely, Z 13 and Z 14 with reliable records of the Chanthaburi River Basin, Thailand. One day and two days ahead forecasting were considered for these stations. In this technique, the past and present values of river flows and water levels with the rainfall are incorporated with the future values of river flows and water levels. The principle of back-propagation is a calculation scheme that enhances the amount of adjustment for the weight values and ultimately shortens the learning time. The simulation results have shown that the less complex network sizes comprising with one hidden layer are suitable. It was found that back-propagation models provide satisfactory accurate forecast values at these stations. As such, they can serve as a good tool for use in daily flow forecasting.
Year2001
TypeThesis
SchoolSchool of Engineering and Technology (SET)
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSWater Engineering and Management (WM)
Chairperson(s)Sutat Weesakul
Examination Committee(s)Tawatchai Tingsanchali ;Clemente, Roberto S. ; Babel, Mukand Singh
Scholarship Donor(s)AIT Partial Scholarship
DegreeThesis (M.Eng.) - Asian Institute of Technology, 2001


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