气候变化领域集成服务门户(CCPortal): Climatology of Dust-Forced Radiative Heating Over the Tibetan Plateau and Its Surroundings

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DOI	10.1029/2020JD032942
	Climatology of Dust-Forced Radiative Heating Over the Tibetan Plateau and Its Surroundings
	Wang T.; Han Y.; Huang J.; Sun M.; Jian B.; Huang Z.; Yan H.
发表日期	2020
ISSN	2169897X
卷号	125 期号:17
英文摘要	Dust aerosol can affect the atmospheric thermal structure and exert great melting potential on snow and ice sheets. In this study, the decadal climatology of dust-forced radiative heating (DRH) in the atmosphere over Tibetan Plateau and its surroundings (TPS) was investigated using the Santa Barbara DISORT Atmospheric Radiative Transfer (SBDART) model along with the CALIPSO satellite observations from 2007 to 2016. After screening out other aerosols, the vertical distribution of dust aerosol was examined to accurately assess the DRH. The net DRH showed a significant warm effect mainly by dust loading, which covers from the center of dust sources to their adjacent transport regions. The maximum value of the DRH appeared at the near-surface, while the DRH decreased with an increase in height. The climatic average DRH at the near-surface reached 16.8 K/month at the Taklimakan Desert (TD) and 10.8 K/month at the Gangetic Plain in spring, 13.7 K/month at the Indus Plain in summer, which is 3–3.6 times warmer than the column-averaged DRHs. This study also found the most significant influence of dust events on the Qaidam Basin in the TPS, in which the near-surface DRH was 4.7 K/month during spring. It is also noteworthy that the intermonth and interannual variations of the DRH highlighted the significant warming effect of dust aerosols on the atmospheric thermal structure, especially at the near-surface. In addition, we need to pay more attention to changes in snow-related processes influenced by absorbing aerosols and the light-absorbing impurities deposited in snow over the TPS. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	CALIPSO; dust aerosol; radiative heating; SBDART model; Tibetan Plateau
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/185792
作者单位	Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China
推荐引用方式 GB/T 7714	Wang T.,Han Y.,Huang J.,et al. Climatology of Dust-Forced Radiative Heating Over the Tibetan Plateau and Its Surroundings[J],2020,125(17).
APA	Wang T..,Han Y..,Huang J..,Sun M..,Jian B..,...&Yan H..(2020).Climatology of Dust-Forced Radiative Heating Over the Tibetan Plateau and Its Surroundings.Journal of Geophysical Research: Atmospheres,125(17).
MLA	Wang T.,et al."Climatology of Dust-Forced Radiative Heating Over the Tibetan Plateau and Its Surroundings".Journal of Geophysical Research: Atmospheres 125.17(2020).