Estimation of recharge using a revised CRD method
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Date
2001
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Water Research Commission
Abstract
The cumulative rainfall departure (CRD) method, based on the water-balance principle, is often used for mimicking of
water level fluctuations. Because of its simplicity and minimal requirement of spatial data, the CRD method has been
applied widely for estimating either effective recharge or aquifer storativity, and consequently gained a focus in South
Africa. This paper critically reviews this method and proposes expanded algorithm. Validation of the method under typical
South African conditions is discussed based on model-generated and known cases. The study is aided with a user-friendly
Excel program called Recharge Estimation Model in Excel (REME).
Description
Keywords
Estimation of recharge, Cumulative rainfall departure (CRD) method
Citation
Xu, Y.& van Tonder, G.J. (2001). Estimation of recharge using a revised CRD method. Water SA, 27(3): 341-344