Impact of land cover change on land surface temperature: A case study of Spiti Valley

doi:10.1007/s11629-018-4902-9

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2018 > Vol15 No.8

	Impact of land cover change on land surface temperature: A case study of Spiti Valley
	Kumar, Pankaj; Husain, Arif; Singh, Ram Babu; Kumar, Manish
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2018
卷号	15 期号:8 页码:1658-1670
关键词	Land surface temperature Land cover change Normalised difference snow index Normalised Difference Vegetation Index DEM Remote Sensing GIS Linear Regression
ISSN号	1672-6316
DOI	10.1007/s11629-018-4902-9
文献子类	Article
英文摘要	Land surface temperature (LST) is the skin temperature of the earth surface. LST depends on the amount of sunlight received by any geographical area. Apart from sun light, LST is also affected by the land cover, which leads to change in land surface temperature. Impact of land cover change (LCC) on LST has been assessed using Landsat TM 5, Landsat 8 TIRS/OLI and Digital Elevation Model (ASTER) for Spiti Valley, Himachal Pradesh, India. In the present study, Spiti valley was divided into three altitudinal zones to check the pattern of changing land cover along different altitudes and LST was calculated for all the four land cover categories extracted from remote sensing data for the years of 1990 and 2015. Matrix table was used as a technique to evaluate the land cover change between two different years. Matrix table shows that as a whole, about 2,151,647 ha (30%) area of Spiti valley experienced change in land cover in the last 25 years. The result also shows vegetation and water bodies increased by 107,560.2 ha (605.87%) and 45 ha (0.98%), respectively. Snow cover and barren land decreased by 19,016.5 ha (23.92%) and 88,589 (14.14%), during the study period. A significant increase has been noticed in vegetation amongst all land cover types. Minimum, maximum and mean LST for three altitudinal zones have been calculated. The mean LST recorded was 11A degrees C in 1990 but it rose by 2A degrees C and reached to 13A degrees C in 2015. Changes in LST were obtained for each land cover categories. The mean temperature of different land cover types was calculated by averaging value of all pixels of a given land cover types. The mean LST of vegetation, barren land, snow cover and water body increased by 6A degrees C, 9A degrees C, 1A degrees C, and 7A degrees C, respectively. Further, relationships between LST, Normalized Difference Snow Index (NDSI), and Normalised Difference Vegetation Index (NDVI) were established using Linear Regression.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000442239600004
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35564]
专题	Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.8
推荐引用方式 GB/T 7714	Kumar, Pankaj,Husain, Arif,Singh, Ram Babu,et al. Impact of land cover change on land surface temperature: A case study of Spiti Valley[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(8):1658-1670.
APA	Kumar, Pankaj,Husain, Arif,Singh, Ram Babu,&Kumar, Manish.(2018).Impact of land cover change on land surface temperature: A case study of Spiti Valley.JOURNAL OF MOUNTAIN SCIENCE,15(8),1658-1670.
MLA	Kumar, Pankaj,et al."Impact of land cover change on land surface temperature: A case study of Spiti Valley".JOURNAL OF MOUNTAIN SCIENCE 15.8(2018):1658-1670.