| Author | Sopinya Kerdsakul |
| Call Number | AIT Thesis no. WM-95-30 |
| Subject(s) | Irrigation water--Thailand--Phitsanulok
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. WM-95-30 |
| Abstract | The Water Allocation Scheduling and Monitoring (W ASAM) program is a computer
model to simulate water allocations in large irrigation systems. In this study, the model version
1.22b for WINDOWS is used, which was developed by the Irrigation College, Royal Irrigation
Depa1tment, Thailand.
The W ASAM program can calculate the irrigation water requirements for the entire
irrigation system and the consequent discharges in each relevant canal section. This calculation is
based on crop water requirements, cropping pattern, rainfall, field wetness condition, canal
characteristics etc. The results of these calculations are presented in reports for the Project
Engineer, the Water Master, and the Zoneman. The program has to run two days before starting in
the following week by using the expected rainfall of next week, actual rainfall and field wetness
condition for predicting irrigation water requirements.
The WASAM program was applied to the Tha Bua sub project of the Phitsanulok
Irrigation Project in wet season in 1995 and the results were compared with the actual water
supply. The water requirements calculated by WASAM program was about 22% lower than the
actual, but the trend of weekly irrigation water allocation scheduling curve was similar.
The W ASAM program was applied to the Tha Bua irrigation project, also to simulate the
irrigation water requirements for different crops, and areas during dry season for decision making
in case of water sh01tage.
The average conveyance efficiency reaches nearly 91 % for the main canal, 93% for the
secondary canal, 89% for the te1tiary canal during dry season in 1996 and 76% for the farm
ditches during wet season in 1995. |
| Year | 1996 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. WM-95-30 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Loof, Rainer |
| Examination Committee(s) | Gupta, Ashim Das;Murty, V.V.N.;Onta, Pushpa Raj |
| Scholarship Donor(s) | Royal Thai Government |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology |