Distributed Recharge Estimation for Groundwater Modeling Using Wetspass Model, Case Study - Gaza Strip, Palestine

Adnan Aish, Okke Batelaan, Florimond De Smedt

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    Regional groundwater models used for analyzing groundwater systems (infiltration-discharge relations) are often steady state and, therefore, need long-term average recharge input. On the other hand, the spatial variation in the recharge due to distributed land-use, soil type or texture, slope, groundwater level, meteorological conditions, etc., can be significant and should, therefore, be taken into account. Hence, WetSpass was developed as a physicallybased methodology for estimation of long-term average spatial patterns of surface runoff, actual evapotranspiration, and groundwater recharge. The model is especially suitable for studying effects of land-use changes on the water regime in a basin. The computer model was integrated in the GIS ArcView. Its set-up is extremely flexible; it allows easy new definition of natural or man-made land-use types. This paper describes the concept of the model and gives an example of a developed WetSpass recharge map for the Gaza Strip, Palestine.

    Original languageEnglish
    Pages (from-to)155-163
    Number of pages9
    JournalArabian Journal for Science and Engineering
    Volume35
    Issue number1B
    Publication statusPublished - Apr 2010

    Keywords

    • Distributed water balance
    • Gaza strip
    • GIS
    • Groundwater recharge
    • WetSpass

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