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
Affiliations
Jiayi Ren
School of Humanities and Law, Northeastern University, Shenyang 116029, China
Jun Yang
School of Humanities and Law, Northeastern University, Shenyang 116029, China; Human Settlements Research Center, Liaoning Normal University, Dalian 116029, China; Jangho Architecture College, Northeastern University, Shenyang 110169, China; Corresponding author
Feng Wu
Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; Corresponding author
Wei Sun
Nanjing Institute of Geography and Limnology, Key Laboratory of Watershed Geographic Sciences, Chinese Academy of Sciences, Nanjing 210008, China; Corresponding author
Xiangming Xiao
Department of Microbiology and Plant Biology, Center for Earth Observation and Modeling, University of Oklahoma, Norman, OK 73019, USA
Jianhong (Cecilia) Xia
School of Earth and Planetary Sciences (EPS), Curtin University, Perth, WA 65630, Australia
Summary: 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.
