The Use of AHP within GIS in Selecting Potential Sites for Water Harvesting Sites in the Azraq Basin—Jordan

Abstract

The identification of potential sites for water harvesting is an important step towards maximizing water availability and land productivity in the arid and semi-arid areas. This research aimed to select the optimum sites for water harvesting in the Azraq basin of Jordan through the use of GIS techniques. The Azraq basin is characterized by flash floods that involve large quantities of runoff. The selection criteria in this research were based on six parameters identified based on an extensive literature review. Five experts were then asked to evaluate the importance of each criterion. The consistency ratio between the experts opinions was evaluated using the pairwise comparison method and a final weight was computed for each criterion. A water harvesting suitability map was then generated following the weighted linear combination (WLC) method. The sites that are not suitable for water harvesting within the study area were identified and eliminated following the Boolean method, and final water harvesting suitability map was generated. Finally, the findings of this research can be used to assist in the efficient planning of the water resources management to ensure a sustainable development of the water in Jordan and in other areas suffering from water shortages.

Potential rainwater harvesting suitable land selection and management by using GIS with MCDA in Ebenat District, Northwestern Ethiopia

“…The rainfall variability of the area ranges from 1004mm up to 1,138.19 mm of the annual average value. According to Alshabeeb (2016), The value of the rainfall was categorized under three levels of suitability Highly Suitable, Moderately Suitable, and Less Suitable class and it accounts 8.50%, 60.55%, 30.95% respectively that shown in Table 8b and Figure 5a and 5b.…”

“…Water is the basic means of human life for domestic purposes, but it is the main challenge for millions of people worldwide is the lack of access to safe and clean water (Worm and Hattum, 2016), particularly in developing countries (Singh et al, 2009). A large percentage of the earth's people do not have access to an adequate and constant supply of water (Alshabeeb, 2016;Haile, 2017). Waterpoor areas should look for a new way of acquiring, safe, sustainable, sources of water.…”

“…The implementation of RWH potential site selection depends heavily on their technical design and the identification of suitable land (Al-Adamat et al, 2012;Adham et al, 2017;Ammar et al, 2018). GIS with the integration of MCDA plays an important role in maintaining data; combine layers of spatial data site selection (Saaty, 1980;Saaty, 2000;Shadeed, 2011;Van der Vyver and Jordaan, 2011;Alshabeeb, 2016;Thakur et al, 2017;Sameer et al, 2019) So, potential land identification and selection for Rainwater harvesting suitable site in Ebenat district by using an integration of GIS, remotely sensed data and MCDA are the main objectives of the study.…”

Site Selection for an Earth Dam in Mbeere North, Embu County—Kenya

“…Calculation of weight estimate is then done, which is used for derivation of a consistency ratio (CR) of the pair-wise comparisons. As described by [22], PCM comprises of a consistency check in which judgment errors are identified and a consistency ratio is calculated. If CR is greater than 0.10, then some pair-wise values requires some review and the procedure is repeated until the preferred value of CR of less than 0.10 is obtained.…”

Site suitability analysis of Solar PV Power generation in South Gonder, Amhara Region

“…(Table 1). Table 1 Fundamental Scale for Pairwise Comparisons [13,15] Degree importance Definition Explanation 1…”