Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027247 |
An Evaluation of the Shortwave Direct Aerosol Radiative Forcing Using CALIOP and MODIS Observations | |
Oikawa, Eiji1; Nakajima, Teruyuki2; Winker, David3 | |
2018-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:2页码:1211-1233 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA |
英文摘要 | In this study, all-sky ShortWave Direct Aerosol Radiative Forcing (SWDARF) at the top of atmosphere is estimated using the method of Oikawa et al. (2013) applied to two generations of Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Level 2 products, i.e., version 2 (V2) and version 3 (V3), and the Moderate Resolution Imaging Spectroradiometer (MODIS) cloud product. The estimated SWDARF in Oikawa et al. (2013) was based on CALIPSO V2 product, which contained significant errors in cloud clearing and low-altitude aerosols. This error was corrected in V3, resulting in greatly improved and significantly different aerosol and cloud distributions. In clear-sky conditions, the magnitude of aerosol optical thickness underestimation becomes smaller and SWDARF becomes more negative using the V3 product. In addition, above-cloud aerosols, which cause positive SWDARF, are less frequently detected and below-cloud aerosols are more frequently detected in the V3 product than in the V2 product, so that cloudy-sky SWDARF becomes more negative using the V3 product. From these results, clear-sky, cloudy-sky, and all-sky SWDARFs become more negative using the V3 product than the V2 product. The magnitude of negative SWDARF using the V3 product is more than twice as large as the V2 product under all-sky conditions due to V3 improvements in the lidar retrieval algorithms. Considering the uncertainties of aerosol and cloud measurements, annual zonal averages of clear-sky, cloudy-sky, and all-sky SWDARFs from 60 degrees S to 60 degrees N are estimated as -4.00.2, -1.10.3, and -2.10.2Wm(-2) from the V3 product. |
英文关键词 | aerosol radiative forcing aerosol direct effect CALIOP MODIS |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425520200034 |
WOS关键词 | CIRRUS OPTICAL DEPTHS ; THIN CIRRUS ; SOLAR-RADIATION ; CLOUD ; CALIPSO ; PRODUCTS ; OCEAN ; ATMOSPHERE ; SCATTERING ; RETRIEVAL |
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/33547 |
专题 | 气候变化 |
作者单位 | 1.Natl Inst Informat & Commun Technol, Koganei, Tokyo, Japan; 2.Japan Aerosp Explorat Agcy, Earth Observat Res Ctr, Tsukuba, Ibaraki, Japan; 3.NASA Langley Res Ctr, Hampton, VA USA |
推荐引用方式 GB/T 7714 | Oikawa, Eiji,Nakajima, Teruyuki,Winker, David. An Evaluation of the Shortwave Direct Aerosol Radiative Forcing Using CALIOP and MODIS Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(2):1211-1233. |
APA | Oikawa, Eiji,Nakajima, Teruyuki,&Winker, David.(2018).An Evaluation of the Shortwave Direct Aerosol Radiative Forcing Using CALIOP and MODIS Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(2),1211-1233. |
MLA | Oikawa, Eiji,et al."An Evaluation of the Shortwave Direct Aerosol Radiative Forcing Using CALIOP and MODIS Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.2(2018):1211-1233. |
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