Open AccessEvidence of decreasing diurnal temperature range in eastern Northern Hemisphere
Author(s) -
Xiaodan Guan,
Cuimei Cao,
Xinrui Zeng,
Wenxing Sun
Publication year - 2022
Publication title -
environmental research communications
Language(s) - English
Resource type - Journals
ISSN - 2515-7620
DOI - 10.1088/2515-7620/ac5e0a
Subject(s) - northern hemisphere , environmental science , climate change , climatology , cloud cover , diurnal temperature variation , range (aeronautics) , atmospheric sciences , vegetation cover , geography , ecology , geology , land use , cloud computing , biology , materials science , computer science , composite material , operating system
As a key variable in the climate system, the diurnal temperature range (DTR) has received a lot of attention in the atmospheric science community. The majority of published papers interpret DTR change in terms of variables like water vapor, cloud cover, and enhanced vegetation index. In this study, we found that the DTR has an obvious decreasing trend in the semi-arid Northeastern Hemisphere, and the decreasing trend is mainly caused by the continuous release of CO 2 closely associated with a drying process in the Northeastern Hemisphere. As a result of the continued high emission of CO 2 , such accelerated decline changes in DTR in drylands may become much more pronounced in the future, posing a series of environmental problems.