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Kshipra Sub Basin - Asian Development Bank

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Support to the National Water Mission NAPCC<br />

Appendix 3 <strong>Kshipra</strong> <strong>Sub</strong> <strong>Basin</strong><br />

SRTM 90 data. The DEM is used in basin and sub-basin delineation. A summary of the elevation<br />

statistics is given in Table 39.<br />

Table 39 Elevation Summary – <strong>Kshipra</strong> <strong>Basin</strong><br />

Parameter Elevation (masl)<br />

Minimum Elevation 388<br />

Maximum Elevation 831<br />

Mean Elevation 510<br />

186. <strong>Sub</strong>-basin delineation: ArcSWAT<br />

performs automatic delineation of watersheds<br />

using the DEM with a target outflow point<br />

selected interactively. The <strong>Kshipra</strong> river basin<br />

was delineated using 5,000 ha as minimum<br />

stream threshold. This resulted in 41 sub-basins. These sub-basins are shown in Figure 49. The<br />

basin area of the <strong>Kshipra</strong> up to the basin outflow point is 562,110 ha. Care was also taken to<br />

incorporate the locations of stream gauge measurement locations while undertaking the delineation<br />

process.<br />

187. Land use/land cover is an important element of data that is required for pre-processing. The<br />

merged landuse and irrigation source map from IWMI, as shown in Figure 50, was used for the<br />

present study. IWMI derived the Ganges River <strong>Basin</strong> Irrigated Area product using MODIS 500-m and<br />

AVHRR 10-km satellite sensor data merged with IWMI‘s Global Map of Land Use/Land Cover Areas,<br />

to derive a new landuse map with agriculture landuse as well as sources of irrigation. The <strong>Kshipra</strong><br />

basin is part of the Ganga basin. Land use categories and the area covered under each is<br />

summarised in<br />

188. Table 40. The major part of the basin is under agriculture land use, and soyabean is the<br />

predominant crop.<br />

Figure 48: Digital Elevation Model of <strong>Kshipra</strong> <strong>Basin</strong><br />

83

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