气候变化领域集成服务门户(CCPortal): The outflow of Asian biomass burning carbonaceous aerosol into the upper troposphere and lower stratosphere in spring: Radiative effects seen in a global model

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DOI	10.5194/acp-21-14371-2021
	The outflow of Asian biomass burning carbonaceous aerosol into the upper troposphere and lower stratosphere in spring: Radiative effects seen in a global model
	Chavan P.; Fadnavis S.; Chakroborty T.; Sioris C.E.; Griessbach S.; Müller R.
发表日期	2021
ISSN	1680-7316
起始页码	14371
结束页码	14384
卷号	21 期号:18
英文摘要	Biomass burning (BB) over Asia is a strong source of carbonaceous aerosols during spring. From ECHAM6-HAMMOZ model simulations and satellite observations, we show that there is an outflow of Asian BB carbonaceous aerosols into the upper troposphere and lower stratosphere (UTLS) (black carbon: 0.1 to 6ĝ€¯ngĝ€¯m-3 and organic carbon: 0.2 to 10ĝ€¯ngĝ€¯m-3) during the spring season. The model simulations show that the greatest transport of BB carbonaceous aerosols into the UTLS occurs from the Indochina and East Asia region by deep convection over the Malay Peninsula and Indonesia. The increase in BB carbonaceous aerosols enhances atmospheric heating by 0.001 to 0.02ĝ€¯Kĝ€¯d-1 in the UTLS. The aerosol-induced heating and circulation changes increase the water vapor mixing ratios in the upper troposphere (by 20-80ĝ€¯ppmv) and in the lowermost stratosphere (by 0.02-0.3ĝ€¯ppmv) over the tropics. Once in the lower stratosphere, water vapor is further transported to the South Pole by the lowermost branch of the Brewer-Dobson circulation. These aerosols enhance the in-atmosphere radiative forcing (0.68±0.25 to 5.30±0.37ĝ€¯Wĝ€¯m-2), exacerbating atmospheric warming, but produce a cooling effect on climate (top of the atmosphere - TOA: -2.38±0.12 to -7.08±0.72ĝ€¯Wĝ€¯m-2). The model simulations also show that Asian carbonaceous aerosols are transported to the Arctic in the troposphere. The maximum enhancement in aerosol extinction is seen at 400ĝ€¯hPa (by 0.0093ĝ€¯km-1) and associated heating rates at 300ĝ€¯hPa (by 0.032ĝ€¯Kĝ€¯d-1) in the Arctic. © Copyright:
语种	英语
scopus关键词	aerosol; atmospheric modeling; biomass burning; radiative transfer; spring (season); stratosphere; troposphere; Far East; Indochina; Indonesia; Malay Peninsula
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246548
作者单位	Indian Institute of Tropical Meteorology, Center for Climate Change, MoES, India; Department of Atmospheric and Space Sciences, Savitribai Phule Pune University, Pune, India; Air Quality Research Division, Environment and Climate Change, Toronto, Canada; Forschungszentrum Jülich GmbH, Jülich Supercomputing Center, Jülich, Germany; Forschungszentrum Jülich GmbH, IEK7, Jülich, Germany
推荐引用方式 GB/T 7714	Chavan P.,Fadnavis S.,Chakroborty T.,et al. The outflow of Asian biomass burning carbonaceous aerosol into the upper troposphere and lower stratosphere in spring: Radiative effects seen in a global model[J],2021,21(18).
APA	Chavan P.,Fadnavis S.,Chakroborty T.,Sioris C.E.,Griessbach S.,&Müller R..(2021).The outflow of Asian biomass burning carbonaceous aerosol into the upper troposphere and lower stratosphere in spring: Radiative effects seen in a global model.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(18).
MLA	Chavan P.,et al."The outflow of Asian biomass burning carbonaceous aerosol into the upper troposphere and lower stratosphere in spring: Radiative effects seen in a global model".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.18(2021).