DOI: 10.1002/2014GL062191
论文题名: Black carbon radiative forcing over the Tibetan Plateau
作者: He C. ; Li Q. ; Liou K.-N. ; Takano Y. ; Gu Y. ; Qi L. ; Mao Y. ; Leung L.R.
刊名: Geophysical Research Letters
ISSN: 0094-9585
EISSN: 1944-9316
出版年: 2014
卷: 41, 期: 22 起始页码: 7806
结束页码: 7813
语种: 英语
英文关键词: black carbon
; direct radiative forcing
; snow albedo forcing
; Tibetan Plateau
Scopus关键词: Atmospheric radiation
; Carbon
; Mixing
; Radiative transfer
; Snow
; Solar radiation
; Stochastic systems
; Aerosol robotic networks
; Black carbon
; Chemical transport models
; Direct radiative forcing
; Radiative forcings
; Radiative transfer model
; Tibetan Plateau
; Top of the atmospheres
; Stochastic models
; absorption
; albedo
; atmospheric pollution
; black carbon
; emission
; numerical model
; radiative forcing
; radiative transfer
; snow accumulation
; snowpack
; stochasticity
; China
; Qinghai-Xizang Plateau
英文摘要: We estimate the snow albedo forcing and direct radiative forcing (DRF) of black carbon (BC) in the Tibetan Plateau using a global chemical transport model in conjunction with a stochastic snow model and a radiative transfer model. The annual mean BC snow albedo forcing is 2.9 W m-2 averaged over snow-covered plateau regions, which is a factor of 3 larger than the value over global land snowpack. BC-snow internal mixing increases the albedo forcing by 40-60% compared with external mixing, and coated BC increases the forcing by 30-50% compared with uncoated BC aggregates, whereas Koch snowflakes reduce the forcing by 20-40% relative to spherical snow grains. The annual BC DRF at the top of the atmosphere is 2.3 W m-2 with uncertainties of -70-85% in the plateau after scaling the modeled BC absorption optical depth to Aerosol Robotic Network observations. The BC forcings are attributed to emissions from different regions. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923379459&doi=10.1002%2f2014GL062191&partnerID=40&md5=bbd6ed189424af219aea00bfe42228df
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6849
Appears in Collections: 气候减缓与适应
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作者单位: Joint Institute for Regional Earth System Science and Engineering, Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, Los Angeles, CA, United States
Recommended Citation:
He C.,Li Q.,Liou K.-N.,et al. Black carbon radiative forcing over the Tibetan Plateau[J]. Geophysical Research Letters,2014-01-01,41(22).