Deciphering Snow-cover Dynamics: Terrain Analysis in the Mountainous River Basin, Western Himalayas

被引:1
|
作者
Kant, Chander [1 ]
Roy, Kaiser [1 ]
Meena, Ray Singh [1 ]
Kumar, Brijesh [2 ]
Lakshmi, Venkataraman [3 ]
机构
[1] Natl Inst Technol, Dept Civil Engn, Hamirpur 177005, India
[2] Bihar Agr Univ, Dept Agr Engn, Sabour Bhagalpur 813210, India
[3] Univ Virginia, Sch Engn & Appl Sci, Dept Civil & Environm Engn, Charlottesville, VA USA
关键词
Beas Basin; MODIS; Snow-covered Area; Terrain Attributes; Western Himalaya; TEMPERATURE LAPSE-RATE; CLIMATE-CHANGE; RUNOFF SIMULATION; SPECTRAL ALBEDO; MODIS; IMPACTS; PRECIPITATION; VALIDATION; STREAMFLOW; PRODUCTS;
D O I
10.1007/s41101-024-00300-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Terrain variables are primary elements influencing the geographical distribution of snow cover. This paper aimed to relate the terrain attributes (slope, elevation, and aspect zones) with snow-cover spatial distribution in parts of the Beas basin in the western Himalayas. The present study used the MODIS satellite data for the snow-cover dynamics study from 2000 to 2022. The results showed that the mean annual snow-covered area (SCA) was a maximum (36.08%) in February 2019 and minimum (2.03%) in August 2016. The lower elevation zone (LEZ) (380-3000 m), middle elevation zone (MEZ) (3000-5000 m), and upper elevation zone (UEZ) (5000-6585 m) experienced maximum SCA%, i.e., 24.52%, 98.34%, and 98.43%, respectively, for February 2019. Among the 16 aspect zones, the SCA was found maximum in the south and north facings. For eight different slope classes, the SCA was found maximum for slope class 30-40 degrees in LEZ and MEZ, while in 10-20 degrees for UEZ. Further trend analysis, SCA variation with precipitation and temperature, and hypsometric curve analysis have also been carried out for the study area. The study outcomes have socioeconomic and environmental implications for water resource management practices.
引用
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页数:22
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