气候变化领域集成服务门户(CCPortal): Relative Importance of Greenhouse Gases; Sulfate; Organic Carbon; and Black Carbon Aerosol for South Asian Monsoon Rainfall Changes

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DOI	10.1029/2020GL088363
	Relative Importance of Greenhouse Gases; Sulfate; Organic Carbon; and Black Carbon Aerosol for South Asian Monsoon Rainfall Changes
	Westervelt D.M.; You Y.; Li X.; Ting M.; Lee D.E.; Ming Y.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	The contribution of individual aerosol species and greenhouse gases to precipitation changes during the South Asian summer monsoon is uncertain. Mechanisms driving responses to anthropogenic forcings need further characterization. We use an atmosphere-only climate model to simulate the fast response of the summer monsoon to different anthropogenic aerosol types and to anthropogenic greenhouse gases. Without normalization, sulfate is the largest driver of precipitation change between 1850 and 2000, followed by black carbon and greenhouse gases. Normalized by radiative forcing, the most effective driver is black carbon. The precipitation and moisture budget responses to combinations of aerosol species perturbed together scale as a linear superposition of their individual responses. We use both a circulation-based and moisture budget-based argument to identify mechanisms of aerosol and greenhouse gas induced changes to precipitation and find that in all cases the dynamic contribution is the dominant driver to precipitation change in the monsoon region. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Aerosols; Atmospheric radiation; Atmospheric thermodynamics; Budget control; Climate models; Fog; Greenhouse gases; Moisture; Sulfur compounds; Anthropogenic aerosols; Asian summer monsoons; Black carbon aerosol; Linear superpositions; Moisture budget; Precipitation change; Radiative forcings; Summer monsoon; Organic carbon; aerosol; black carbon; climate modeling; greenhouse gas; monsoon; organic carbon; precipitation intensity; radiative forcing; sulfate
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170153
作者单位	Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States; NASA Goddard Institute for Space Studies, New York, NY, United States; Chungnam National University, Daejoeon, Daejoeon, South Korea; NOAA Geophysical Fluid Dynamics Lab, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Westervelt D.M.,You Y.,Li X.,et al. Relative Importance of Greenhouse Gases; Sulfate; Organic Carbon; and Black Carbon Aerosol for South Asian Monsoon Rainfall Changes[J],2020,47(13).
APA	Westervelt D.M.,You Y.,Li X.,Ting M.,Lee D.E.,&Ming Y..(2020).Relative Importance of Greenhouse Gases; Sulfate; Organic Carbon; and Black Carbon Aerosol for South Asian Monsoon Rainfall Changes.Geophysical Research Letters,47(13).
MLA	Westervelt D.M.,et al."Relative Importance of Greenhouse Gases; Sulfate; Organic Carbon; and Black Carbon Aerosol for South Asian Monsoon Rainfall Changes".Geophysical Research Letters 47.13(2020).