03198cas a2200421 a 4500 20260818084603.0 110908s1982 th uu|m rtt 0| a1eng d .b10026423 AIT Thesis no. AE-82-10 Wang, Yu-min A computer model for assessing rainfed agriculture Bangkok : Asian Institute of Technology, 1982 45 p. Thesis ; no. AE-82-10 A thesis submitted in partial fulfilment of the requirement for the degree of Master of Engineering, School of Environement, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1982 In this study, a computer model for assessing the potential of rainfed agriculture has been further modified from the previous AIT study. The development of the model is based on water balance and it consists of two submodels, for generating daily rainfall and evaporation. For the generation of daily rainfall, it includes three different frequency distributions so that the model could be more flexible. The second submodel is used for generating daily evaporation in which the Thomas-Fiereing model was selected for preserving the mean, standard deviation and serial correlation. A comparative study between pan evaporation and potential evapotranspiration estimated by the Jensen-Raise Formula, Radiation Method and Penman Method has been carried out in this study. A daily pan factor as estimated by the Penman Method has been applied for ten stations of Thailand . Subsequently, the potential evapotranspiration can be easily estimated by Pan Evaporation Method, In order to make the model more comprehensive and applicable in the estimation of every variable needed for the assessment of the potential of rainfed agriculture for different regions, the effect of different soil types and crops are incorporated in the water balance analysis. Rain and rainfall Data processing Agriculture Data processing Apichart Anukularmphai, Chairperson Huynh Ngoc Phien, Examination Committee Christoph, Ing. Fried, Examination Committee Chinese Petroleum, ROC, Scholarship Donor Asian Institute of Technology. Thesis ; no. AE-82-10 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B21133 .b10026423 mnait x 240823 2 951012 m a x 2 mnait mnait mnarc 20 40 Barcode : 30050003029484 CREATED : 1994-05-16 RECORD # : i10008214 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003029476 CREATED : 1994-05-16 RECORD # : i10008226 LPATRON : 1015778 LCHKIN : 2002-08-06 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120302129 CREATED : 2016-05-26 RECORD # : i12994388 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 21064 21064 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. AE-82-10 30050003029484 2026-08-18 08:46:03 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. AE-82-10 30050003029476 2026-08-18 08:46:03 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-82-10 30050120302129 2026-08-18 08:46:03 2026-08-18 40