| Author | Roongrueng Chulajata |
| Call Number | AIT Thesis no. 11 |
| Subject(s) | Hydrographic surveying|xThailand|xMae Ping River
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | The thesis is an analysis of the discharge hydrograph of the Ping River at Chiang Mai in relation to flood-producing precipitation. Its objective is the development of a reliable unit hydrograph for use in flood estimation in the vicinity of Chiang Mai.
Because of the difficulty of analysing prolonged, non-uniform storms, the investigation was confined to isolated, reasonably uniform storms of 2 to 12 hours effective duration. Nine storms were analysed. The mean unit hydrograph derived from these storms was found to conform to hydrographs analysed by the U.S. Corps of Engineers, U.S. Soil Conservation Service, and two other investigators (Commons and Willems) to a highly satisfactory degree, and to conform to Snyder's synthetic hydrograph equations, the greatest discrepancy being in the basin lag.
The derived hydrograph is recommended for preliminary flood estimates as it stands, but for more precise estimates it is recommended that it be confirmed by analysis of major floods and a careful study of rainfall frequency and infiltration and evapotranspiration losses, supported by statistical estimates based on observed flood discharges. |
| Year | 1961 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Degree | Thesis (M.Eng.) - SEATO Graduate School of Engineering, 1961 |