Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029206 |
Strong Contrast in Remote Black Carbon Aerosol Loadings Between the Atlantic and Pacific Basins | |
Katich, Joseph M.1,2; Samset, B. H.3; Bui, T. Paul4; Dollner, M.5; Froyd, K. D.1,2; Campuzano-Jost, P.2,6; Nault, B. A.2,6; Schroder, J. C.2,6; Weinzierl, B.5; Schwarz, J. P.1 | |
2018-12-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:23页码:13386-13395 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Norway; Austria |
英文摘要 | Measurements of black carbon (BC) aerosol mass concentration in remote air are sparse, leading to poorly constrained regions that models struggle to represent. Here we present a new data set of BC concentration over the remote Pacific and Atlantic basins from 80N to 65 degrees S latitude that was obtained as part of NASA's Atmospheric Tomography campaign in July/August 2016. More than 100 vertical profiles, extending from similar to 0.2 to 13km altitude above mean sea level, reveal sharp contrasts in loadings between the two basins. Over the Pacific, we found average BC concentration vertical profiles to be largely consistent with seasonally matched data obtained in 2011. Substantially higher loads were observed over the Atlantic in the low to middle troposphere than in the Pacific, likely due to strong regional sources and reduced convective removal in the tropics in this basin. Atlantic and Pacific BC concentrations converge in the upper troposphere and lower stratosphere, reflecting similar high-altitude background concentrations. Comparison of the Atlantic data to the Aerosol Comparisons between Observations and Models suite of models (Phase II) reinforces previous speculation about the ensemble in the remote by quantifying an upper-troposphere model-high-bias of as much as two orders of magnitude over wide latitude bands. However, these direct BC measurements reveal Aerosol Comparisons between Observations and Models ensemble underestimation of biomass burning BC in the outflow of continental Africa by nearly a factor of 5. This high-BC loading region likely dominates BC's direct radiative effect over remote areas of the Pacific and Atlantic basins during the month of August. |
英文关键词 | black carbon ATom SP2 AeroCom aerosol rBC |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000455285500020 |
WOS关键词 | VERTICAL PROFILES ; CONSTRAINTS ; MODELS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/33016 |
专题 | 气候变化 |
作者单位 | 1.NOAA, ESRL, Div Chem Sci, Boulder, CO 80305 USA; 2.Univ Colorado Boulder, CIRES, Boulder, CO 80302 USA; 3.CICERO Ctr Int Climate Res, Oslo, Norway; 4.NASA, Ames Res Ctr, Mountain View, CA USA; 5.Univ Vienna UNIVIE, Fac Phys Aerosol Phys & Environm Phys, Vienna, Austria; 6.Univ Colorado Boulder, Dept Chem, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Katich, Joseph M.,Samset, B. H.,Bui, T. Paul,et al. Strong Contrast in Remote Black Carbon Aerosol Loadings Between the Atlantic and Pacific Basins[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(23):13386-13395. |
APA | Katich, Joseph M..,Samset, B. H..,Bui, T. Paul.,Dollner, M..,Froyd, K. D..,...&Schwarz, J. P..(2018).Strong Contrast in Remote Black Carbon Aerosol Loadings Between the Atlantic and Pacific Basins.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(23),13386-13395. |
MLA | Katich, Joseph M.,et al."Strong Contrast in Remote Black Carbon Aerosol Loadings Between the Atlantic and Pacific Basins".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.23(2018):13386-13395. |
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