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Quantitative Analysis of Drainage Basin Parameters towards better Management of Damodar River, Eastern India
Journal of the Geological Society of India ( IF 1.3 ) Pub Date : 2021-07-10 , DOI: 10.1007/s12594-021-1753-8
Prasanta Kumar Ghosh 1 , Ritendu Mukhopadhyay 1 , Narayan Chandra Jana 1
Affiliation  

Morphometric analysis of a drainage basin is important for the study of river basin evaluation, analysis of flood hazard, watershed prioritization, and for better management of the river. Primarily to mitigate flood, India’s first multipurpose river valley project was implemented on Damodar river valley, disregarding in depth study about the basic morphometry of the river. After that, in last 50–60 years, many researchers have worked on this topic in selected watersheds or parts of Damodar river basin. The present study extended the work to entire Damodar river basin of eastern India and demarcated the basin from 59 nos. of SOI topographical maps (R.F.1:50,000) and satellite images. For detailed analysis, the whole basin was divided into 103 watersheds and each watershed was treated as a unit for the analysis. Then twenty-three morphometric variables (comprising of linear, areal and relief parameters) were used to generate dataset of the morphometric characteristics of all watersheds. Using these morphometry data, watersheds are classified into different groups based on their similarities. Further, watershed-wise amount of runoff, sediment yield and environmental flow of Damodar river have been estimated for flood and erosion management purpose. Finally, watersheds are divided into different classes as per their priority in management process. This important study may assist us to understand and manage the river properly for the future of human populations during Anthropocene.



中文翻译:

流域参数的定量分析以更好地管理印度东部的达莫达尔河

流域的形态测量分析对于流域评估研究、洪水灾害分析、流域优先排序以及更好地管理河流非常重要。印度第一个多用途河谷项目主要是为了缓解洪水,在达莫达尔河谷实施,没有对河流的基本形态进行深入研究。此后,在过去的 50-60 年中,许多研究人员在选定的流域或达莫达尔河流域的部分地区开展了这一主题的研究。本研究将工作扩展到印度东部的整个达莫达尔河流域,并从 59 号流域划定了该流域。SOI 地形图 (RF1:50,000) 和卫星图像。为了详细分析,将整个流域划分为103个流域,每个流域作为一个单元进行分析。然后使用 23 个形态测量变量(包括线性、面积和地形参数)来生成所有流域的形态测量特征数据集。使用这些形态测量数据,流域根据它们的相似性被分为不同的组。此外,为了洪水和侵蚀管理的目的,已经估计了达莫达尔河的流域径流量、沉积物产量和环境流量。最后,流域根据其在管理过程中的优先级划分为不同的类别。这项重要的研究可能会帮助我们了解和管理河流,以便在人类世期间为人类的未来做好准备。流域根据其相似性分为不同的组。此外,为了洪水和侵蚀管理的目的,已经估计了达莫达尔河的流域径流量、沉积物产量和环境流量。最后,流域根据其在管理过程中的优先级划分为不同的类别。这项重要的研究可能会帮助我们了解和管理河流,以便在人类世期间为人类的未来做好准备。流域根据其相似性分为不同的组。此外,为了洪水和侵蚀管理的目的,已经估计了达莫达尔河的流域径流量、沉积物产量和环境流量。最后,流域根据其在管理过程中的优先级划分为不同的类别。这项重要的研究可能会帮助我们了解和管理河流,以便在人类世期间为人类的未来做好准备。

更新日期:2021-07-12
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