Combined influence of soil moisture and atmospheric humidity on land surface temperature under different climatic background
Kang Jiang,
Zhihua Pan,
Feifei Pan,
Adriaan J. Teuling,
Guolin Han,
Pingli An,
Xiao Chen,
Jialin Wang,
Yu Song,
Lu Cheng,
Ziyuan Zhang,
Na Huang,
Shangqian Ma,
Riping Gao,
Zhenzhen Zhang,
Jingyu Men,
Xiaoqin Lv,
Zhiqiang Dong
Affiliations
Kang Jiang
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Zhihua Pan
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China; Corresponding author
Feifei Pan
Department of Geography and the Environment, University of North Texas, Denton, TX, USA
Adriaan J. Teuling
Hydrology and Quantitative Water Management Group, Wageningen University & Research, Wageningen, Netherlands
Guolin Han
China Meteorological Administration Training Center, Beijing, China
Pingli An
College of Land Science and Technology, China Agricultural University, Beijing, China; Key Laboratory of Land Quality, Ministry of Land and Resources, Beijing, China
Xiao Chen
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Jialin Wang
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; College of Land Science and Technology, China Agricultural University, Beijing, China
Yu Song
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Lu Cheng
National Meteorological Center, Beijing, China
Ziyuan Zhang
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Na Huang
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Shangqian Ma
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Riping Gao
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Zhenzhen Zhang
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Jingyu Men
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Xiaoqin Lv
College of Resources and Environmental Sciences, China Agricultural University, Beijing, China; CMA-CAU Jointly Laboratory of Agriculture Addressing Climate Change, Beijing, China
Summary: Soil moisture (SM) and atmospheric humidity (AH) are crucial climatic variables that significantly affect the climate system. However, the combined influencing mechanisms of SM and AH on the land surface temperature (LST) under global warming are still unclear. Here, we systematically analyzed the interrelationships among annual mean values of SM, AH, and LST using ERA5-Land reanalysis data and revealed the role of SM and AH on the spatiotemporal variations of LST through mechanism analysis and regression methods. The results showed that net radiation, SM, and AH could well model the long-term variability of LST well and explain 92% of the variability. Moreover, SM played an essential and different role under the different LST backgrounds. The AH always displayed a greenhouse effect on the LST. This study provides essential insights into the global climate change mechanism from the surface hydrothermal processes perspective.
