02603nam a2200409 4500 20260817170920.0 120598 th eng .b10103223 AIT Thesis no. WA-79-13 Celino, Hernando C. Automatic parameter optimization of watershed models Bangkok : Asian Institute of Technology, 1980 v, 65 p. Thesis ; no. WA-79-13 A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1980 The Rosenbrock direct search method of optimization was modified and applied to determine the parameters of the Dawdy and O'donnell conceptual hydrologic model, The search method was found out to work well in finding the optimum parameter combination of the model. Three types of objective functions were tried and the error function which give equal weight to equal proportional errors was noted to be the best objective function to use in determining appropriate parameter values of the model. The model was modified such that daily hydrologic data can be used. For a two-year simulation period, the model simulated streamflow was able to account the daily variation of the observed streamflow to a certain degree. Watersheds Mathematical models Selvalingam, Selvadore, Chairperson Eggers, Helmut, Examination Committee Tawatchai Tingsanchali, Examination Committee USAID-RED, Scholarship Donor Asian Institute of Technology. Thesis ; no. WA-79-13 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B22156 .b10103223 mnait s 250526 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050003068433 CREATED : 1994-05-16 RECORD # : i10114373 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003068425 CREATED : 1994-05-16 RECORD # : i10114385 LPATRON : 1012969 LCHKIN : 2000-05-15 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 0 Barcode : 30050160040225 CREATED : 2016-01-15 RECORD # : i12868115 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 10218 10218 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. WA-79-13 30050003068433 2026-08-17 17:09:21 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. WA-79-13 30050003068425 2026-08-17 17:09:21 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no. WA-79-13 30050160040225 2026-08-17 17:09:21 2026-08-17 40