Abstract
In the present study, Morphometric analysis has been conducted using Geographical Information System (GIS) techniques to assess the geo-hydrological characteristics of watersheds (Mod nadi, Sapan nadi, and Negri nadi) of Mahi river basin (Jhabua region). The basin is characterized by dendritic drainage pattern. The region is semi-arid (Agro-ecological zone of India), which belong to highly drought prone zone and degraded lands. Morphometric analysis of drainage system is an important factor of characterization of watershed. It furnishes the advantageous parameters for the ground water potential zone assessment, identification of places for water harvesting structure, water resource management and geological nature of the river system. GIS techniques has been used for assessing various morphometric characteristics of the drainage basin, as they proved to be very efficient and a powerful tool for the manipulation and analysis of spatial information mainly for the feature identification and extraction of information for better understanding. Using DEM data and GIS & Remote sensing techniques, morphometric analysis is carried out through mathematical analysis of drainage system of watersheds, which involves measurement of linear, Arial and relief aspects of the river basin.
Highlights
Remote sensing, Geographical information system (GIS) coupled with ASTER (DEM) has proved to be an efficient tool in delineation of drainage pattern and water resources management and its planning
Watershed -1 falling in Mod nadi, watershed- 2 sapan nadi and watershed -3 negri nadi, all rivers are tributary of Mahi river basin in Jhabua region, western part of Madhya Pradesh, covers an area of 1643.79 sq.km (Figure 1)
The present study demonstrates the value of remote sensing and Geographical Information System (GIS) techniques in prioritizing watersheds based on morphometric analysis
Summary
Geographical information system (GIS) coupled with ASTER (DEM) has proved to be an efficient tool in delineation of drainage pattern and water resources management and its planning. The Mahi river basin extends over states of Madhya Pradesh, Rajasthan and Gujrat having total area of 34,842 sq.km with maximum length of 330 K.m. and width of about 250 km. It lies between 72021’to 75019’ East longitudes and 21046’ to 24030’ North latitudes. Morphometry is the measurement and mathematical analysis of the formation of the earth’s surface, shape and dimension of its landforms. Remote sensing and Geographical Information System (GIS) techniques are being extensively used since quite some time in watershed related studies as very effective tools in determination of the basin geometry i.e., Morphometric analysis or quantitative description of watershed morphologic characteristics
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