RS and GIS based modeling for optimum site selection in rain water harvesting system: an SCS CN approach

• Autorzy: Mahmood, Khalid , Qaiser, Ansab , Farooq, Sumar , Nisa, Mehr un
• Języki publikacji: EN

Abstrakty

EN

In this study, an integrated approach has been adopted for optimum selection of locations for rain water harvesting (RWH) in Kohat district of Pakistan. Various thematic layers including runof depth, land cover/land use, slope and drainage density have been incorporated as input to the analysis. Other biophysical criteria such as geological setup, soil texture and drainage streams characteristics were also taken into account. Drainage density and slope were derived from digital elevation model, and map of land use/land cover was prepared using supervised classifcation of multi-spectral Sentinel-2 images of the area. Aforementioned thematic layers are assigned respective weights of their importance and combined in GIS environment to form a RWH potential map of the region. The generated suitability map is classifed into three potential zones: high, moderate and low suitability zones consisting of area 638 km2 (21%), 1859 km2 (62%) and 519 km2 (17%), respectively. The suitability map has been used to mark accumulation points on the down streams as potential spots of water storage. In addition, site suitability of artifcial structures for RWH consisting of farm ponds, check dams and percolation tanks has also been assessed, showing 3.2%, 3% and 4.5% of the total area as a ft for each of the structure, respectively. The derived suitability will aid policy makers to easily determine potential sites for RWH structures to store water and tackle acute paucity of water in the area.

Słowa kluczowe

PL

zbieranie wody deszczowej; teledetekcja; system informacji geograficznej

EN

rainwater harvesting; remote sensing; geographical information system; site suitability

• Czasopismo: Acta Geophysica
• Rocznik: 2020
• Tom: Vol. 68, no. 4
• Strony: 1175--1185
• Opis fizyczny: Bibliogr. 27 poz.

Twórcy

autor

Mahmood, Khalid

• RS and GIS Group, Department of Space Science, University of the Punjab, Lahore, Pakistan,

autor

Qaiser, Ansab

• Department of Space Science, University of the Punjab, Lahore, Pakistan

autor

Farooq, Sumar

• Department of Space Science, University of the Punjab, Lahore, Pakistan

autor

Nisa, Mehr un

• Department of Space Science, University of the Punjab, Lahore, Pakistan

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)

Identyfikatory

DOI

10.1007/s11600-020-00460-x