干旱区生态环境知识资源中心(Arid): A comparative analysis of day and night land surface temperature in two semi-arid cities using satellite images sampled in different seasons

Arid

DOI	10.1016/j.asr.2020.04.009
	A comparative analysis of day and night land surface temperature in two semi-arid cities using satellite images sampled in different seasons
	Bala, Ruchi; Prasad, Rajendra; Yadav, Vijay Pratap
通讯作者	Prasad, R
来源期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
EISSN	1879-1948
出版年	2020
卷号	66 期号:2 页码:412-425
英文摘要	Urban heat island (UHI) refers to the occurrence of very high temperature patches in urban areas with respect to surrounding rural areas. The behaviour of Land Surface Temperature (LST) with different land covers varies for day and night time in a given urban area. Therefore, an attempt has been made for the comparative analysis of the day and night LST in two semi-arid cities in India i.e. Ahmedabad and Gandhinagar using two Landsat 8 images (one for day and one for night time) for each city. The relations of day and night LST with three independent variables such as Normalized Difference Vegetation Index (NDVI), Normalized Difference Built-up Index (NDBI) and impervious surface fraction (ISF) were established using Landsat 8 data. Based on the relation of LST with indices, the combinations of indices were used for developing the models to improve the correlation of day and night LST with the land cover. The developed models improved the correlation of day and night LST with the combinations of indices as compared to the relation of LST with individual variables in semi-arid urban landscapes with reasonably good coefficient of determination (R-2) values of 0.63 in Ahmedabad and 0.79 in Gandhinagar for day time. The reasonably good values of R-2 were found to be 0.81 and 0.75 for Ahmedabad and Gandhinagar, respectively, for night time. The developed model was also evaluated using 12 MODIS satellite images i.e. six images of each city for the summer, post-monsoon and winter seasons (one for day and one for night time in each season). The results of the developed models showed high capability to explain LST in heterogeneous semi-arid urban area for both day and night time in the summer, post-monsoon and winter seasons in a year. However, the relations established in this study can further be investigated for other months and years to understand its significance for other dates in semi-arid urban areas. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.
英文关键词	Land surface temperature Landsat 8 MODIS Normalized difference vegetation index Normalized difference built-up index Impervious surface fraction
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000540698000016
WOS关键词	URBAN ; HEAT ; CITY ; DAYTIME ; ASTER ; AREA
WOS类目	Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324770
作者单位	[Bala, Ruchi; Prasad, Rajendra; Yadav, Vijay Pratap] Indian Inst Technol BHU, Dept Phys, Varanasi, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Bala, Ruchi,Prasad, Rajendra,Yadav, Vijay Pratap. A comparative analysis of day and night land surface temperature in two semi-arid cities using satellite images sampled in different seasons[J],2020,66(2):412-425.
APA	Bala, Ruchi,Prasad, Rajendra,&Yadav, Vijay Pratap.(2020).A comparative analysis of day and night land surface temperature in two semi-arid cities using satellite images sampled in different seasons.ADVANCES IN SPACE RESEARCH,66(2),412-425.
MLA	Bala, Ruchi,et al."A comparative analysis of day and night land surface temperature in two semi-arid cities using satellite images sampled in different seasons".ADVANCES IN SPACE RESEARCH 66.2(2020):412-425.