1 AIT Asian Institute of Technology

Regional characteristics of runoff in the Chao Phya basin

AuthorRahman, S. M. Ataur
Call NumberAIT Thesis no. 139
Subject(s)Runoff--Chao Phya River basin

NoteThesis (M.Eng.) - SEATO Graduate School of Engineering
PublisherAsian Institute of Technology
AbstractThe Thomas-Fiering Model is a mathematical model for generating a synthetic hydrology of any desired length using certain statistical parameters. A study has been made of the behavior of statistical para¬ meters required to develop a synthetic Hydrology in the Chao Phya basin. The parameters are mean monthly flows, standard deviation, coefficient of regression and coefficient of correlation. Charts have been pre¬ pared to show their variation from month to month in the region under study. In the charts the first two parameters have been reduced to the dimensionless form of specific yield and coefficient of variation for the purpose of comparison. The charts may be employed to give an estimate of the parameters of synthetic hydrology at any place in the region of study. A high degree of interstation correlation existed in the Chao Phya basin. This fact was utilised in estimating the missing record of a station from the corresponding know record of a nearby station. Serial correlation coefficients were found to have high values during the north east monsoon season (period of stream flow recession). In the month of September most of the stations were marked by statistically nonsignificant coefficients (the annual peak runoff occurs in September or October). A definite time lag was found to exist between the peaks of upper and lower Chao Phya station flows.
Year1966
TypeThesis
SchoolStudent Research Before 1979
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Prof. E.F. Schulz;
Examination Committee(s)Dr. Norbert L. Ackermann;Prof. M.B. Pescod;Dean Milton E. Bender, Jr.
DegreeA thesis submitted in partial fulfillment if the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand.


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