Morphometric analysis in basaltic Terrain of Central India using GIS techniques: a case study

Abstract

Morphometric analysis is significant for investigation and management of the watershed. This study depicts the morphometric analysis of Miniwada Watershed in Nagpur district, Maharashtra, Central India using Geographic Information System (GIS) techniques, which has been carried out through measurement of various aspects like linear, aerial and relief aspects of watershed. The drainage network of the watershed was generated from Cartosat-I DEM (10 m) using ESRI Software ArcGIS (ver.10.2). The analysis reveals that drainage pattern is dendritic and the stream order in the watershed varies from 1 to 4. The total number of stream segments of all orders counted as 37, out of which the majority of orders (70.27 %) was covered by 1st order streams and 4th order stream segments covers only 2.70 %. The bifurcation ratio reflects the geological and tectonic characteristics of the watershed and estimated as 3.08. The drainage density of the watershed is 3.63 km/sq km and it indicates the closeness of spacing of channels. The systematic analysis of various parameters in GIS helps in better understanding the soil resources distribution, watersheds prioritization, planning and management. Keywords Central India Á Basaltic terrain Á Morphometric analysis Á Miniwada watershed Á GIS Á Linear Á Areal Á Relief aspects & Nisha Sahu

Morphometric analysis of Vu Gia - Thu Bon using GIS

“…Hình thái lưu vực sông có thể xác định bằng cách sử dụng các phương pháp truyền thống như quan sát thực địa và bản đồ địa hình. Tuy nhiên, phương pháp này vừa tốn thời gian và chi phí (Krishnamurthy và nnk., 1996;Nisha Sahu, 2017). Hiện nay, GIS được sử dụng rộng rãi trong các nghiên cứu tính toán các tham số hình thái, ưu điểm nổi bật của GIS là cung cấp một môi trường linh hoạt, lý tưởng và đồng thời cũng cung cấp các công cụ phân tích như flow length (chiều dài dòng chảy), flow accumulation (tích tụ dòng chảy), flow direction (hướng dòng chảy) cho các phân tích không gian trong việc xác định các đặc trưng hình thái (Vincy và nnk., 2012;Ibrahim Bathis và Ahmed, 2014;Nisha Sahu và nnk., 2017).…”

Morphometric Analysis for Planning Soil and Water Conservation Measures Using Geospatial Technique

“…Morphometry is the measurement and the mathematical analysis of the earth surface, shape and dimension of its landform (Strahler, 1964;Clarke, 1966;Agrawal, 1998) and can be done through measurement of linear, aerial and relief aspects of the basin and slope contribution (Ali, 1988;Nag and Chakraborty, 2003;Magesh et al, 2012;Sahu et al, 2016). Morphometric analysis is an important aspect for characterization of watersheds and provides a quantitative description of the drainage system (Strahler, 1964) and useful for hydrological investigation.…”

“…The form factor indicates the flow intensity of a basin (Horton, 1945) and has direct relationship between stream flow and shape of the watershed (Sahu et al, 2016). Form factor value would be always less than 0.7854 for all basins other than circular basin.…”

Quantitative assessment of the drainage morphometric characteristics of Chaohu Lake Basin from SRTM DEM Data: a GIS-based approach

“…The importance of the Lake and its basin area to the ancient and recent civilizations have made it to be the subject of diverse academic studies and investigations. The focus of these studies varied but most are on the impact of land-use activities, especially agricultural activities, on the pollution of sediments and Rivers of the basin (e.g., Jiang et al, 2014;Kong et al, 2013;Shau et al, 2016;Wen et al, 2012;Zan et al, 2011). Other studies examined the outbreak of cyanobacteria bloom (Shang & Shang, 2005); Spatio-temporal variations of the bacterioplankton community composition of the lake (Wei et al, 2008); and the implication/benefits of land-use changes and human activities on the Lake Chaohu and its environment (e.g., Chen et al, 2013;Huang et al, 2013;J-H. Wang et al, 2012;Kang et al, 2016;Li et al, 2009;Liu et al, 2012;Oyedotun, 2019;J.…”