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The Estimation of Snow Cover Distribution Using Satellite Data in the Cold Arid Leh Region of Indian Himalaya

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Title The Estimation of Snow Cover Distribution Using Satellite Data in the Cold Arid Leh Region of Indian Himalaya
Not Available
 
Creator Mahesh K. Gaur
R.K. Goyal
Dipankar Saha
Neelratan Singh
Shubhendu Shekhar
Ajai, J.S. Chauhan
 
Subject Snow Cover
NDSI
Landsat OLI
Sentinel-2a satellite images
Leh
Indian Himalayas
 
Description Not Available
Snow cover is an important feature for the supply of freshwater and influences climatic hydrology at
various altitudes, especially in mountain regions. Snow is a significant component of the environmental
threat. In order to map and realize the extent of snow cover at high altitudes, continuous monitoring
is therefore necessary. Data from satellite remote sensing helps to capture land cover and changes in land
cover. The major intricacies in the snow cover mapping in the Leh region are the underlying vegetation,
debris, and sparse snow. The Landsat OLI satellite data base methodology was developed to map the
snow cover in the Leh region of the Indian Himalayas through NDSI (normalized difference snow
index) to overcome such area specific issues. NDSI encompasses a reasonably good accuracy and can
be used extensively because topographic shadows, water bodies and clouds can easily be misinterpreted
as snow. It is capable of differentiating pixels of snow from pixels of cloud, debris, vegetation,
and water. The NDSI was generated for snow mapping using Landsat OLI satellite images. Using
the high reflectance of the snow in the blue band, misinterpreted water bodies were removed. NDSI
was subsequently used month-wise to estimate the snow cover of the Leh region (Ladakh Union
Territory of India). The findings of present study clearly indicate that the accuracy of the NDSI
is reasonably appropriate for the estimation of the snow cover distribution over a wider area. It has been
also observed that the snow cover in the study region has decreased over the years.
Not Available
 
Date 2022-04-02T08:43:19Z
2022-04-02T08:43:19Z
2022-01-01
 
Type Book
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/71134
 
Language English
 
Relation Not Available;
 
Publisher "HARD" Publishing Company s.c. Jerzy Radecki, Hanna Radecka, Dorota Radecka WENGRIS 71 Street 10-765 OLSZTYN POLAND