The decreased cloud cover dominated the rapid spring temperature rise in arid central Asia over the period 1980-2014
Wang, G.X.; Yuan, X.L.; Jing, C.Q.; Hamdi, R.; Ochege, F.U.; Dong, P.; Shao, Y.Q.; Qin, X.Y. (2024). The decreased cloud cover dominated the rapid spring temperature rise in arid central Asia over the period 1980-2014. Geophys. Res. Lett. 51(2): e2023GL107523. https://dx.doi.org/10.1029/2023GL107523
In: Geophysical Research Letters. American Geophysical Union: Washington. ISSN 0094-8276; e-ISSN 1944-8007, meer
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| Auteurs | | Top |
- Wang, G.X.
- Yuan, X.L.
- Jing, C.Q.
- Hamdi, R., meer
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- Ochege, F.U.
- Dong, P.
- Shao, Y.Q.
- Qin, X.Y.
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| Abstract |
Central Asia (CA) has experienced a faster temperature rise than the global land over the past decades. However, the role of regional/global drivers and their associated underlying biophysical mechanisms is poorly explored. Here, we combined observations and model simulations to show that the rapid warming in CA was overwhelmingly contributed by rapid spring warming (i.e., 49.23%). The decrease of cloud cover (CLD) was the main driver of spring warming in CA, leading to the surface receiving more solar radiation, consequently heating the surface air temperature, and contributing almost 40.79% to the spring warming. Besides, the strengthening of sea level pressure states results in continuous subsidence of vertical motion over CA, which was unfavorable for cloud formation. Our study will deepen our understanding of the climate evolution in the arid CA. Central Asia (CA) has experienced a faster temperature rise than the global land over the past decades, which has brought unprecedented challenges to the survival and flourishing of life. The role of drivers and their associated underlying biophysical mechanisms is explored here. We conclude that the temperature increase in CA is overwhelmingly contributed by rapid warming in spring (i.e., 49.23%), and the rapidly increasing trend will continue till the end of this century. The decrease of cloud cover (CLD) was the main driver of spring warming in CA, leading to the surface receiving more solar radiation, and consequently heating the surface air temperature, contributing almost 40.79% to the spring warming. Besides, the strengthening of sea level pressure states results in subsidence of vertical motion over CA, which was unfavorable for cloud formation. The rapid spring warming contributed most to the annual temperature increase in Central Asia (CA) among other seasonsThe rapid spring average temperature rise in arid CA was mainly driven by the decreased cloud coverThe increase in sea level pressure led to the subsidence of vertical motion over CA and consequently the decreased cloud cover |
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