Integrating Remote Sensing and GIS for Identification of Groundwater Prospective Zones in the Narava Basin, Visakhapatnam Region, Andhra Pradesh

Abstract

This paper mainly deals with the integrated approach of remote sensing and Geographical Information System (GIS) to delineate groundwater prospective zones in Narava basin, Visakhapatnam region. The various thematic maps generated for delineating groundwater potential zones are geomorphology, geology, lineament density, drainage density, slope and land use/land cover (LULC). Weighted index overlay (WIO) technique is used to investigate a number of choice possibilities and evaluate suitability according to the associated weight of each unit. The integrated map of the area shows different zones of groundwater prospects, viz. very good (18.9% of the area), good (26.4% of the area), moderate (17.1% of the area) and poor (37.6% of the area). The categorization of groundwater potential was in good agreement with the available water column in the basin area.

Assessment of Groundwater Potential Based on Multicriteria Decision Making Model and Decision Tree Algorithms

“…The dendritic network is usually found in region underlain with homogeneous surface without abrupt changes in geological conditions. The river density [25] represents the recharge conditions to quantify the influence caused by surface water, where higher density provides better recharge conditions. Based on the flow accumulation, the river density was calculated using the "line density" command in ArcGIS 10.1, as shown in Figure 8.…”

Integrating Geospatial and Geophysical Information for Deciphering Groundwater Potential Zones in Dudhganga Catchment, Kashmir Valley, India

“…The LULC of the area provides important indications of the extent of groundwater requirement and utilization (Narendra et al 2013). The synoptic viewing through remote sensing has provided the multi-spectral data, which has been utilized for classifying LULC.…”

“…This freshwater crisis is already evident in many parts of India, varying in scale and intensity depending mainly on the time of the year. The occurrence and movement of groundwater in an area is governed by several factors such as topography, lithology, geological structure, depth of weathering, slope, land use/ land cover (LULC) and interrelationship between these factors [1].…”

“…Many researchers attempted to integrate groundwater controlling features using different type of GIS modeling techniques for groundwater potential mapping in many areas such as [5,8,12,14,15,18,[25][26][27][28][29][30][31][32][33][34][35]. Weighted index overlay (WIO) is one of the most accepted methods for assigning weights and relative ranks based on the multi criteria evaluations for decision making [1,18,34,36,37,38]. Thus, in this study, we attempted to utilize the similar method to delineate the potential groundwater zones in Dudhganga watershed.…”

Geoportal: A Web-Based Gis Application

“…Remote sensing provides representative measurements of several relevant physical parameters at scales from a point to a continent [2]. GIS provides an excellent tool to handle large amount of data and their integration for natural resource managemen [1,3,6,10,11]. The concept of web GIS is based on how the map is produced and responds to user interactions over the web.…”