Regional thermal environment changes: Integration of satellite data and land use/land cover

Jiayi Ren; Jun Yang; Feng Wu; Wei Sun; Xiangming Xiao; Jianhong Cecilia Xia

doi:10.1016/j.isci.2022.105820

Regional thermal environment changes: Integration of satellite data and land use/land cover

iScience. 2022 Dec 17;26(2):105820. doi: 10.1016/j.isci.2022.105820. eCollection 2023 Feb 17.

Authors

Jiayi Ren¹, Jun Yang^{1

2

3}, Feng Wu⁴, Wei Sun⁵, Xiangming Xiao⁶, Jianhong Cecilia Xia⁷

Affiliations

¹ School of Humanities and Law, Northeastern University, Shenyang 116029, China.
² Human Settlements Research Center, Liaoning Normal University, Dalian 116029, China.
³ Jangho Architecture College, Northeastern University, Shenyang 110169, China.
⁴ Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.
⁵ Nanjing Institute of Geography and Limnology, Key Laboratory of Watershed Geographic Sciences, Chinese Academy of Sciences, Nanjing 210008, China.
⁶ Department of Microbiology and Plant Biology, Center for Earth Observation and Modeling, University of Oklahoma, Norman, OK 73019, USA.
⁷ School of Earth and Planetary Sciences (EPS), Curtin University, Perth, WA 65630, Australia.

Abstract

Land surface temperature (LST) is subject to location and environmental influences, which makes quantification difficult in terms of timeliness. Based on 10-d geostationary satellite LST TCI products, we quantitatively evaluated the thermal environment differentiation of various ground objects in North, South, and Northwest China from 2017 to 2021. We found that the thermal condition index (TCI) in Northwest China decreased, whereas it increased in North and South China. In contrast, Moran's I index increased in Northwest and South China, with strong spatial agglomeration. The TCI for artificial surfaces decreased from North (0.633) to Northwest (0.554) and South China (0.384). The bare land TCI was always the lowest among the land use/land cover (LULC) types in each region. Our results reflect the LULC thermal environment of China against the background of new urbanization and provide theoretical support for scientific planning to improve the ecological environment.

Keywords: Environmental analysis; Geomatics; Remote sensing.