Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025798 |
Ground-based High Spectral Resolution Lidar observation of aerosol vertical distribution in the summertime Southeast United States | |
Reid, Jeffrey S.1; Kuehn, Ralph E.2; Holz, Robert E.2; Eloranta, Edwin W.2; Kaku, Kathleen C.3; Kuang, Shi4; Newchurch, Michael J.5; Thompson, Anne M.6; Trepte, Charle R.7; Zhang, Jianglong8; Atwood, Samuel A.9; Hand, Jenny L.10; Holben, Brent N.6; Minnis, Patrick7; Posselt, Derek J.11 | |
2017-03-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | As part of the Southeast United States-based Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC(4)RS), and collinear with part of the Southeast Atmosphere Study, the University of Wisconsin High Spectral Resolution Lidar system was deployed to the University of Alabama from 19 June to 4 November 2013. With a collocated Aerosol Robotic Network (AERONET) sun photometer, a nearby Chemical Speciation Network (PM2.5) measurement station, and near daily ozonesonde releases for the August-September SEAC(4)RS campaign, the site allowed the region's first comprehensive diurnal monitoring of aerosol particle vertical structure. A 532nm lidar ratio of 55 sr provided good closure between aerosol backscatter and AERONET (aerosol optical thickness, AOT). A principle component analysis was performed to identify key modes of variability in aerosol backscatter. "Fair weather" days exhibited classic planetary boundary layer structure of a mixed layer accounting for similar to 50% of AOT and an entrainment zone providing another 25%. An additional 5-15% of variance is gained from the lower free troposphere from either convective detrainment or frequent intrusions of western United States biomass burning smoke. Generally, aerosol particles were contained below the 0 degrees C level, a common level of stability in convective regimes. However, occasional strong injections of smoke to the upper troposphere were also observed, accounting for the remaining 10-15% variability in AOT. Examples of these common modes of variability in frontal and convective regimes are presented, demonstrating why AOT often has only a weak relationship to surface PM2.5 concentration. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398064200026 |
WOS关键词 | OPTICAL DEPTH ; CLOUD ; LAYER ; SURFACE ; EXTINCTION ; EMISSIONS ; PROFILES ; TRENDS ; IMPACT ; TROPOPAUSE |
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/32037 |
专题 | 气候变化 |
作者单位 | 1.US Naval Res Lab, Monterey, CA USA; 2.Univ Wisconsin madison, Ctr Space Sci Engn, Madison, WI 53706 USA; 3.CSRA, Monterey, CA USA; 4.Univ Alabama, Ctr Earth Syst Sci, Huntsville, AL USA; 5.Univ Alabama, Dept Atmospher Sci, Huntsville, AL USA; 6.NASA Goddard Space Flight Ctr, Greenbelt, MD USA; 7.NASA Langley Res Ctr, Langley, VI USA; 8.Univ North Dakota, Dept Atmospher Sci, Grand Forks, ND USA; 9.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 10.Colorado State Univ, CIRA, Ft Collins, CO 80523 USA; 11.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Reid, Jeffrey S.,Kuehn, Ralph E.,Holz, Robert E.,et al. Ground-based High Spectral Resolution Lidar observation of aerosol vertical distribution in the summertime Southeast United States[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(5). |
APA | Reid, Jeffrey S..,Kuehn, Ralph E..,Holz, Robert E..,Eloranta, Edwin W..,Kaku, Kathleen C..,...&Posselt, Derek J..(2017).Ground-based High Spectral Resolution Lidar observation of aerosol vertical distribution in the summertime Southeast United States.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(5). |
MLA | Reid, Jeffrey S.,et al."Ground-based High Spectral Resolution Lidar observation of aerosol vertical distribution in the summertime Southeast United States".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.5(2017). |
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