气候变化领域集成服务门户(CCPortal): Impacts of Historical Land Use/Cover Change (1980–2015) on Summer Climate in the Aral Sea Region

CCPortal

DOI	10.1029/2020JD032638
	Impacts of Historical Land Use/Cover Change (1980–2015) on Summer Climate in the Aral Sea Region
	He H.; Hamdi R.; Cai P.; Luo G.; Ochege F.U.; Zhang M.; Termonia P.; De Maeyer P.; Li C.
发表日期	2021
ISSN	2169897X
卷号	126 期号:6
英文摘要	In the Aral Sea region, significant land use/cover change (LUCC) occurred in the past 50 years, especially the shrinking of Aral Sea due to unreasonable usage of water resources under intensified agricultural activities. However, to date, regional climatic feedbacks on fine-scale exerted by such LUCC in Central Asia have not been studied clearly. In this study, ALARO-SURFEX regional climate model was used to perform climate simulations under different underlying surface scenarios with 4 km spatial resolution to explore the impacts of historical LUCC on summer climate during 1980–2015. Our results show that compared to default land surface conditions, the modified ones improved the model's ability in simulating temperature, precipitation, and surface energy fluxes. During the period 1980–2015, LUCC accelerated the warming trend, reduced the summer precipitation and altered allocation of surface energy fluxes. Exposed dry bottom of Aral Sea has undergone the most conspicuous warming, which caused increase of the 2 m maximum temperature, average temperature, and diurnal temperature range by 2.56 ± 0.88°C, 1.04 ± 0.53°C, and 3.42 ± 1.10°C, respectively, while minimum temperature decrease by 1.14 ± 0.56°C. The summer precipitation (mainly convective precipitation) decreased by about 2.33 mm overlay the exposed dry bottom of Aral Sea and approximately 400 km “buffer” region in its eastern side. Additionally, the energy balance changed as follows: −47.9, 50.19, −78.67, and −23.72 W m−2 for net radiation, sensible heat, latent heat, and soil heat, respectively. Quantified contribution of LUCC on regional climate provides useful information for developing mitigation and adaption strategies under the global warming threat. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	ALARO-SURFEX regional climate model; Aral Sea region; land use/cover change; summer 2 m temperature; summer precipitation; summer surface energy fluxes
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185409
作者单位	State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; State Key Laboratory of Desert and Oasis Ecology, University of Chinese Academy of Science, Beijing, China; Department of Geography, Ghent University, Ghent, Belgium; Royal Meteorological Institute, Brussels, Belgium; Department of Physics and Astronomy, Ghent University, Ghent, Belgium; Binjiang College, Nanjing University of Information Science & Technology, Wuxi, China; Northwest Land and Resources Research Center, Shaanxi Normal University, Xi’an, China; Sino-Belgian Joint Laboratory of Geo-information, Urumqi, China; Sino-Belgian Joint Laboratory of Geo-information, Gent, Belgium; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster, School of Geographic Sciences, Nanjing University of Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	He H.,Hamdi R.,Cai P.,等. Impacts of Historical Land Use/Cover Change (1980–2015) on Summer Climate in the Aral Sea Region[J],2021,126(6).
APA	He H..,Hamdi R..,Cai P..,Luo G..,Ochege F.U..,...&Li C..(2021).Impacts of Historical Land Use/Cover Change (1980–2015) on Summer Climate in the Aral Sea Region.Journal of Geophysical Research: Atmospheres,126(6).
MLA	He H.,et al."Impacts of Historical Land Use/Cover Change (1980–2015) on Summer Climate in the Aral Sea Region".Journal of Geophysical Research: Atmospheres 126.6(2021).