A Hydro-Spatial Hierarchical Method for Siting Water Harvesting Reservoirs in Dry Areas

SCS-CN and GIS-based approach for identifying potential water harvesting sites in the Kali Watershed, Mahi River Basin, India

“…An attempt is made to evolve a decision rule based approach for identifying the most appropriate sites for each of the proposed Water Harvesting Structures (WHS). Conventionally, factors such as watershed area, slope, land use, runoff coefficient are considered as criteria in selecting suitable sites for WHS (Padmavaty et al 1993;IMSD 1995;El-Awar et al 2000;Rao and Satish Kumar 2004;De Winnar et al 2007). In this work, in addition to above criteria, factors such as effective storage, foundation and abutment permeability are also considered (tables 2-4).…”

“…Some of its features such as map overlay and analysis help to derive and aggregate hydrologic parameters from different sources such as soil, land cover and rainfall data (Cheng et al 2006;De Winnaar et al 2007). In recent days, an integrated study of runoff modeling, remote sensing and GIS has gained significance in targeting suitable sites for water recharging/harvesting structures (Padmavaty et al 1993;El-Awar et al 2000;Ravishankar and Mohan 2005;De Winnar et al 2007). These works mainly aim at prioritizing the area suitable for water harvesting by taking into consideration parameters such as runoff, physiography, environmental and socio-economic conditions.…”

Combining GIS with multicriteria decision making for siting water harvesting ponds in Northern Jordan

“…GIS has been widely used in selecting the best sites for water harvesting schemes. In arid and semi-arid regions of the world, several researchers have worked on site selection of water harvesting schemes (Al-Adamat, 2008;El-Awar et al, 2000;Gupta et al, 1997;Shatnawi, 2006;Srivastava, 1996). The site selection criteria in most of these references are based on soil and topographic suitability, land cover and land use, and surface runoff generating potential.…”

Spatial assessment of conjunctive water harvesting potential in watershed systems

“…El-Awar et al (2000) used a hydro-spatial hierarchical method in dry areas for siting small water harvesting reservoirs. In another study, Zhai et al (2004) designed a web-based GIS-hydrologic modeling system to implement a spatial analytical hierarchical process (AHP) for selecting the most suitable location for building water harvesting reservoirs.…”