| Author | Bhuiyan, Abdur Rahman |
| Call Number | AIT Thesis no. WA-82-1 |
| Subject(s) | Dept-area-duration (Hydrometeorology)
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Rainfall depth-duration-frequency relationships for one-day, two-day, and three-day durations throughout Thailand were studied. This includes the determination of probability distribution function of annual maximum rainfall, the
computation of the parameters of the selected probability distribution function for annual maximum rainfalls of all studied durations, and the construction of the maps of the isovalues of such parameters throughout Thailand. Five probability distribution functions namely Gumbel, 2-parameter Gamma,
2-parameter Lognormal, Pearson Type III, and Log Pearson Type III, were selected
to fit the frequency distribution of annual maximum rainfalls by using Chi-square and Kolmogorov-·Smirnov statistics as the goodness of fit indices. The results of the tests, although not conclusively distinct, together with results of studies
by various investigators, give rise to the selection of the Gumbel distribution as the representative distribution for the annual maximum rainfalls.
The parameters of the Gumbel distribution were estimated for the annual maximum rainfalls of all studied durations and stations by using the maximum
likelihood method. The maps of isovalues of each of the parameters for the three studied durations were drawn throughout the country. Except only in the western highland (the plateau) for both parameters and in the south peninsula for the case of the location parameter·, the maps of these
parameters show the similar pattern to that of the mean annual rainfall of the country for all studied durations. |
| Year | 1982 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Suphat Vongvisessomjai ; Virapol Taesombut |
| Examination Committee(s) | Huynh Ngoc Phien |
| Scholarship Donor(s) | The Government of Netherlands |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1982 |