Conceptualisation of geo-hydrological characteristic of a drainage basin quantitative measurement of morphometric parameters has been required. Assessment and understanding the hydrological characteristics of Nagar River Basin morphometric analysis has been carried out. Remote sensing and ArcGIS techniques have been used for measuring and calculating the morphometric characteristics of the Nagar River Basin. Total area of Nagar River Basin is 2381.69 sq.km with dendritic drainage pattern. This stream frequency of the Nagar River Basin is 0.09 km/sq.km. Probability of flooding is quite high with intense rainfall in dendritic type of drainage system. Monsoonal rainfall is the main cause for the formation of stream segment. Very coarse drainage texture has been found in this Nagar River Basin with T value 0.04. This river basin is highly elongated in nature. The presence of a large number of stream segments exhibits the soil erosion in this study area by surface runoff, and the eroded materials deposited into the river bed aggregated channel depth causing flooding in rainy season. Flood is one of the major natural hazards having massive damage every year all over the world. For constructing flood vulnerability mapping of Nagar River Basin, AHP method has been used by compiling some morphometric parameters with other flood-influencing factors of Nagar River Basin. It can be concluded that the lower portion of the Nagar River Basin is highly vulnerable to flooding.

中文翻译：

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使用 SRTM-DEM 和 GIS 的 Nagar 河流域、印度-孟加拉国巴林道的形态测量分析

需要对流域的地质水文特征进行形态测量参数的定量测量的概念化。对纳加尔河流域形态计量分析的水文特征进行了评估和了解。遥感和ArcGIS 技术已被用于测量和计算Nagar 河流域的形态特征。那加尔河流域总面积2381.69平方公里，呈树枝状流域。纳加尔河流域的这条溪流频率为 0.09 公里/平方公里。在树枝状排水系统中，由于降雨量大，发生洪水的可能性非常高。季风降雨是河段形成的主要原因。在这个 Nagar 河流域发现了非常粗糙的排水结构，T 值为 0.04。这个流域在本质上是高度拉长的。大量河段的存在表明该研究区的土壤受到地表径流的侵蚀，侵蚀物质沉积到河床聚集河道深度，导致雨季洪水泛滥。洪水是每年在世界范围内造成巨大破坏的主要自然灾害之一。为构建纳加尔河流域洪水脆弱性图，采用层次分析法，将一些形态测量参数与纳加尔河流域的其他洪水影响因素进行编制。可以得出结论，纳加尔河流域的下部极易受洪水侵袭。沉积在河床中的侵蚀物质聚集了河道深度，导致雨季洪水泛滥。洪水是每年在世界范围内造成巨大破坏的主要自然灾害之一。为构建纳加尔河流域洪水脆弱性图，采用层次分析法，将一些形态测量参数与纳加尔河流域的其他洪水影响因素结合起来。可以得出结论，纳加尔河流域的下部极易受洪水侵袭。沉积在河床中的侵蚀物质聚集了河道深度，导致雨季洪水泛滥。洪水是每年在世界范围内造成巨大破坏的主要自然灾害之一。为构建纳加尔河流域洪水脆弱性图，采用层次分析法，将一些形态测量参数与纳加尔河流域的其他洪水影响因素进行编制。可以得出结论，纳加尔河流域的下部极易受洪水侵袭。