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Fonds National Suisse de la Recherche Scientifique 2008

Remote sensing for hydrological modelling and water resources management in semi-arid areas (case studies : Botswana and Inner Mongolia)

Modelling Water Resources

Titre : Remote sensing for hydrological modelling and water resources management in semi-arid areas (case studies : Botswana and Inner Mongolia)

Numéro  : 118752

Début/Fin : 01.06.2008 - 31.05.2009

Requérant  : Wang Haijing Institut für Geodäsie und Photogrammetrie ETH Zürich

Présentation
The study will focus on water resources management in semi-arid areas, where water is the essential element for future development. Two areas (one in Botswana and the other in southeast Inner Mongolia) are chosen to be the study regions. Existing high resolution remote sensing data will be used to determine the spatial distribution of recharge and discharge of aquifers in these semi-arid areas. Recharge and discharge are obtained from a water balance based on evapotranspiration, precipitation and surface runoff. The recharge/discharge maps will be calibrated using local measurements (piezometry of observation wells or chloride method) and the temporal gravity variations of the study regions obtained from the GRACE satellite mission. A hydrological model will be developed for the quantification of water availability over large geographic domains. The model will then be used to analyze options of sustainable water usage and local water resources management.

Mots clés : Remote sensing, hydrology, water resources management, semi-arid areas, hydrological modeling, semi-arid area

Financement : 120’826.00

Fonds National Suisse de la Recherche Scientifique

Page publiée le 1er octobre 2016, mise à jour le 6 novembre 2017