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DOI | 10.1002/2017GL074652 |
Climate Impacts of CALIPSO-Guided Corrections to Black Carbon Aerosol Vertical Distributions in a Global Climate Model | |
Kovilakam, Mahesh1; Mahajan, Salil1; Saravanan, R.2; Chang, Ping2 | |
2017-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We alleviate the bias in the tropospheric vertical distribution of black carbon aerosols (BC) in the Community Atmosphere Model (CAM4) using the Cloud-Aerosol and Infrared Pathfinder Satellite Observations (CALIPSO)-derived vertical profiles. A suite of sensitivity experiments are conducted with 1x, 5x, and 10x the present-day model estimated BC concentration climatology, with (corrected, CC) and without (uncorrected, UC) CALIPSO-corrected BC vertical distribution. The globally averaged top of the atmosphere radiative flux perturbation of CC experiments is similar to 8-50% smaller compared to uncorrected (UC) BC experiments largely due to an increase in low-level clouds. The global average surface temperature increases, the global average precipitation decreases, and the ITCZ moves northward with the increase in BC radiative forcing, irrespective of the vertical distribution of BC. Further, tropical expansion metrics for the poleward extent of the Northern Hemisphere Hadley cell (HC) indicate that simulated HC expansion is not sensitive to existing model biases in BC vertical distribution. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416761600055 |
WOS关键词 | HEMISPHERE TROPICAL EXPANSION ; ANTHROPOGENIC SULFATE ; EQUILIBRIUM RESPONSE ; CONVECTIVE-TRANSPORT ; LATE 20TH-CENTURY ; SENSITIVITY ; ATLANTIC ; STRATOCUMULUS ; VARIABILITY ; ABSORPTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27398 |
专题 | 气候变化 |
作者单位 | 1.Oak Ridge Natl Lab, Computat Earth Sci & Climate Change Sci Inst, Oak Ridge, TN 37830 USA; 2.Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA |
推荐引用方式 GB/T 7714 | Kovilakam, Mahesh,Mahajan, Salil,Saravanan, R.,et al. Climate Impacts of CALIPSO-Guided Corrections to Black Carbon Aerosol Vertical Distributions in a Global Climate Model[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20). |
APA | Kovilakam, Mahesh,Mahajan, Salil,Saravanan, R.,&Chang, Ping.(2017).Climate Impacts of CALIPSO-Guided Corrections to Black Carbon Aerosol Vertical Distributions in a Global Climate Model.GEOPHYSICAL RESEARCH LETTERS,44(20). |
MLA | Kovilakam, Mahesh,et al."Climate Impacts of CALIPSO-Guided Corrections to Black Carbon Aerosol Vertical Distributions in a Global Climate Model".GEOPHYSICAL RESEARCH LETTERS 44.20(2017). |
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