Monthly rainfall-runoff models applied to arid and semiarid catchments for water resource estimation purposes
作者:
D.A. HUGHES,
期刊:
Hydrological Sciences Journal
(Taylor Available online 1995)
卷期:
Volume 40,
issue 6
页码: 751-769
ISSN:0262-6667
年代: 1995
DOI:10.1080/02626669509491463
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Problems associated with the application of monthly rainfall-runoff models to arid and semiarid areas for water resource estimation purposes are discussed with respect to the representation of hydrological processes and the model rainfall input. The problems are illustrated using a specific monthly model applied to catchments within the semiarid to arid parts of southern Africa. Some model improvements are suggested and briefly evaluated and the application of a daily model to one of the catchments is compared. The overall conclusion is that while a detailed examination of the available rainfall data can account for many of the inadequate simulation results on an individual month basis, it is difficult to make allowances for the lack of resolution in the normally available information. Other problems related to the structure of individual models can be surmounted by limited model developments, but very little can be done to bypass the rainfall quantification problem.
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