Materials and Methods:
Secondary hydrogeomorphic data and other spatial information are mostly collected from Hydraulic Data Division D.V.C., Maithon, Irrigation and Waterways Dept. West Bengal, Damodar Planning Atlas (Chatterjee, 1969), The Lower Damodar River, India; Understanding the Human Role in Changing Fluvial Environment (Bhattacharya, 2011), different published books, Journals, research papers etc. Information about depression and cyclonic storm has been collected from Cyclone eAtlas- IMD. (http://www.rmcchennaieatlas.tn.nic.in Accessed on 1.10.2018)
After collecting data statistical analyses have been employed in Microsoft Excel and XL STAT software. GIS is used to represent spatial data into organized format or thematic maps. GIS & Remote Sensing software likes Arc GIS 9.2, ERDAS 9.1 are used to depict thematic maps etc.
Result and Discussion:
The Damodar Basin experiences a well-defined monsoon, which is generally confined to the period from the middle of June to early October. Eastern part of Jharkhand and Gangatic West Bengal are recommend as one of major rainstorm zones and flood prone areas of India (Kale. 2003, 2005). As a result, the regime characteristics of the river are dictated by spatio – temporal variation of Monsoonal rainfall.

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