Decision support system for estimation of potential evapo-transpiration in Pangani Basin

被引：17
|
作者：
Moges, SA [1 ]
Katambara, Z [1 ]
Bashar, K [1 ]
机构：
[1] Univ Dar Es Salaam, Fac Civil Engn & Built Envirom, Dept Water Resources Engn, Dar Es Salaam, Tanzania
来源：
PHYSICS AND CHEMISTRY OF THE EARTH | 2003年 / 28卷 / 20-27期
关键词：
decision support system; PET; E-methods; Stochastic model;
D O I：
10.1016/j.pce.2003.08.038
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
A decision support system for estimation water loss through evaporation was developed for Pangani basin. The model was envisaged to estimate reference potential evapotranspiratiom (PET) at ungauged locations, estimate average catchment PET and can be used to filling missing data for hydrological and agricultural planning purposes. It was designed to make use of the existing limited data in estimation of PET by using anyone of the available evaporation methods (E-methods). Six evaporation methods are imbedded in the model-Penman, Penman-Montieth, Kimberly-Penman (combination method), Hargreaves (temperature based), Priestly and Taylor and Turc (radiation based). Stochastic time series model was used to transfer information from gauged to ungauged location. The model was effectively used to estimate catchment average PET for HEC-HMS model and filling missing data. (C) 2003 Published by Elsevier Ltd.
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页码：927 / 934
页数：8
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