2004 UC Proceedings Abstract
 Relation of Probable Maximum Precipitation Depth-Area-Duration Using GIS Track: Water Resources Author(s): Sununtha Kingpaiboon The relationship between depth-area-duration is important for the design of hydraulic structures such as dams and weirs. Probable maximum precipitation (PMP) is necessary to design floods for optimal design of such structures. The objectives of this study are to evaluate PMP from heavy storm data from 1972 to 2000, then to use GIS to correlate and present the results and to establish the depth-area-duration relationship. The study gathered heavy rainfall, temperature, and dew point temperature of Thailand. These data estimated the PMP by considering the dew point temperature. The PMP can be calculated for each rainfall duration to obtain spatial rainfall distribution using ArcView. The depth-area-duration relationship can be established which enables the development of envelope curves. The results are a set of contour maps of PMP for each rainfall duration for Thailand and depth-area-duration relationships for areas between 100 and 50,000 km2 at one, two, and three days rainfall duration. Sununtha Kingpaiboon Faculty of Engineering, Khon Kaen University Agricultural Engineering Department Department of Agricultural Engineering, Faculty of Engineering, Khon Kaen University Khon Kaen , Khon Kaen 40002 TH Phone: 66-043-362148 Fax: 66-043-362149 E-mail: sununtha@kku.ac.th |
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