Monitoring and evaluation of seasonal snow cover in Kashmir valley using remote sensing,GIS and ancillary data |
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Authors: | H S Negi N K Thakur Rajeev Kumar Manoj Kumar |
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Institution: | (1) National Institute of Hydrology, Roorkee, Uttarakhand, India |
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Abstract: | Seasonal snow cover is a vital natural resource in the Himalaya. Monitoring of the areal extent of seasonal snow cover is
important for both climatological studies as well as hydrological applications. In the present paper, snow cover monitoring
was carried out to evaluate the region-wise accumulation and ablation pattern of snow cover in Pir Panjal and Shamshawari
ranges of Kashmir valley. The study was carried out for the winter period between November and April of 2004–05, 2005–06 and
2006–07, using multi-temporal WiFS sensor data of IRS-1C/1D satellites. The study shows reduction in the areal extent of seasonal
snow cover and rising trend of maximum temperature in three winters for the entire Kashmir valley. This has been validated
with 20 years (1988–89 to 2007–08) climatic conditions prevailed in both ranges of Kashmir valley. Region-wise study shows
the spatial and temporal variability in seasonal snow cover within Kashmir valley. Advance melting was observed in Banihal
and Naugam/Tangdhar regions than Gurez and Machhal regions. Different geographical parameters of these regions were studied
to evaluate the influence on snow cover and it was observed that altitude and position of region with respect to mountain
range are the deciding factors for retaining the seasonal snow cover for longer duration. Such region-wise study of snow cover
monitoring, can provide vital inputs for planning the hydropower projects, development in habitat areas, recreational and
strategic planning in the region. |
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