An analysis of spatial-temporal distribution features of snow cover over the Tibetan Plateau based on MODIS data

doi:10.6046/gtzyyg.2017.02.17

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Abstract In this paper, the spatial-temporal distribution of snow cover and the impact of topographic factors such as elevation, aspect and slope on snow cover distribution over the Tibetan Plateau were analyzed based on MOD10A2 acquired from 2000 to 2014 and the digital elevation model(DEM)using GIS spatial analysis techniques. The results are as follows: ① The snow cover over the Tibetan Plateau is characterized by rich snow and high snow cover fraction(SCF)in the surrounding areas and interior high mountains but less snow and low SCF in inland basins and valleys. ② Snow cover over the Tibetan Plateau exhibits the feature the higher the altitude, the higher the SCF, the longer the snow cover duration and the more stable the intra-annual variations. ③ Intra-annual snow cover distribution below 4 000 m is characterized by single-peak type, and that above 4 000 m is characterized by double-peak type. ④ The lowest SCF below 6 000 m occurs in summer while SCF above 6 000 m occurs in winter. ⑤ In different aspects, SCF is the highest in north aspect, the lowest in south aspect, and the middle between them in east and west aspects.

Keywords services chain remote sensing information models (RSIM) visual customization automatic calculation workflow

Issue Date: 03 May 2017

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	RAN Quan
	LI Guoqing
	YU Wenyang
	ZHANG Lianchong

Cite this article:

RAN Quan,LI Guoqing,YU Wenyang, et al. An analysis of spatial-temporal distribution features of snow cover over the Tibetan Plateau based on MODIS data[J]. REMOTE SENSING FOR LAND & RESOURCES, 2017, 29(2): 117-124.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2017.02.17 OR https://www.gtzyyg.com/EN/Y2017/V29/I2/117

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