Spatial modelling for identification of groundwater potential zones in semi-arid ecosystem of southern India using Sentinel-2 data, GIS and bivariate statistical models

2021 ◽  
Vol 14 (14) ◽  
Author(s):  
Karikkathil C. Arun Kumar ◽  
Gangalakunta P. Obi Reddy ◽  
Palanisamy Masilamani ◽  
Pundoor Sandeep
Keyword(s):  
Statistical Models ◽  
Spatial Modelling ◽  
Groundwater Potential ◽  
Southern India ◽  
Arid Ecosystem ◽  
Groundwater Potential Zones ◽  
Semi Arid ◽  
Sentinel 2

Delineation of Groundwater Potential Zones of Semi-Arid Region of YSR Kadapa District Andhra Pradesh India using RS GIS and Analytic Hierarchy Process

2019 ◽  
Vol 2 (2) ◽  
pp. 76-86 ◽  
Author(s):  
Rajasekhar M. ◽  
Sudarsana Raju G. ◽  
Bramaiah C. ◽  
Deepthi P. ◽  
Amaravathi Y. ◽  
...  
Keyword(s):  
Rural Areas ◽  
Integrated Water Resources Management ◽  
Groundwater Potential ◽  
Groundwater Potential Zones ◽  
Hilly Terrain ◽  
Analytic Hierarchy ◽  
Urban And Rural Areas ◽  
Semi Arid Region ◽  
Hierarchy Process ◽  
Semi Arid

Water scarcity due to increasing urbanization and population in urban and rural areas makes necessary planning for artificial groundwater recharge. Remote Sensing (RS), Geographic Information System (GIS) and Analytical Hierarchy Process (AHP) are advantageous tools to delineate the Groundwater Potential Zones (GWPZ) in arid and semi-arid areas of India. An aggregate of eight thematic layers affecting groundwater potential of the area were assigned appropriate weights dependent on the Saaty’s 9 point scale. These weights were normalized using AHP technique to delineate the GWPZ. About 2.30km2 shows very good groundwater potential (GWP), 162.10km2 shows good GWP, whereas 127.78km2 and 1.45km2 are under moderate and poor GWP, correspondingly. The structural hilly terrain located in the Eastern and Southern parts has a poor groundwater potential due to higher degree of slope and low permeability of clayey soils. This study can be helpful to identify the GWPZ of drought-prone zones useful for planning and development with integrated water resources management.

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