Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1175/JAM2157.1 |
Aerosol characterization and direct radiative forcing assessment over the ocean. Part II: Application to test cases and validation | |
Costa, MJ; Levizzani, V; Silva, AM | |
通讯作者 | Levizzani, V |
来源期刊 | JOURNAL OF APPLIED METEOROLOGY
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ISSN | 0894-8763 |
出版年 | 2004 |
卷号 | 43期号:12页码:1818-1833 |
英文摘要 | A method based on the synergistic use of low earth orbit and geostationary earth orbit satellite data for aerosol-type characterization and aerosol optical thickness (AOT: tau(alpha)) retrieval and monitoring over the ocean is presented in Part I of this paper. The method is now applied to a strong dust outbreak over the Atlantic Ocean in June 1997 and to two other relevant transport events of biomass burning and desert dust aerosol that occurred in 2000 over the Atlantic and Indian Oceans, respectively. The retrievals of the aerosol optical properties are checked against retrievals from sun and sky radiance measurements from the ground-based Aerosol Robotic Network (AERONET). The single-scattering albedo values obtained from AERONET are always within the error bars presented for Global Ozone Monitoring Experiment (GOME) retrievals, resulting in differences lower than 0.041. The retrieved AOT values are compared with the independent space - time-collocated measurements from the AERONET, as well as to the satellite aerosol official products of the Polarization and Directionality of the Earth Reflectances ( POLDER) and the Moderate Resolution Imaging Spectroradiometer ( MODIS). A first estimate of the AOT accuracy derived from comparisons with AERONET data leads to +/- 0.02 +/- 0.22 tau(alpha) when all AOT values are retained or to +/-0.02 +/- 0.16 tau(alpha) for aerosol transport events (AOT > 0.4). The upwelling flux at the top of the atmosphere ( TOA) was computed with radiative transfer calculations and used to estimate the TOA direct shortwave aerosol radiative forcing; a comparison with space-time-collocated measurements from the Clouds and the Earth’s Radiant Energy System (CERES) TOA flux product was also done. It was found that more than 90% of the values differ from CERES fluxes by less than +/-15%. |
类型 | Article |
语种 | 英语 |
国家 | Italy ; Portugal |
收录类别 | SCI-E |
WOS记录号 | WOS:000226458600002 |
WOS关键词 | SKY RADIANCE MEASUREMENTS ; OPTICAL-PROPERTIES ; TROPOSPHERIC AEROSOLS ; ATMOSPHERE ; ALGORITHM ; AERONET ; NETWORK ; CLIMATE ; SYSTEM ; POLDER |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/147132 |
作者单位 | (1)CNR, ISAC, Natl Res Council, Inst Atmospher Sci & Climate, I-40129 Bologna, Italy;(2)Univ Evora, Dept Phys, Evora, Portugal;(3)Univ Evora, Evora Geophys Ctr, Evora, Portugal |
推荐引用方式 GB/T 7714 | Costa, MJ,Levizzani, V,Silva, AM. Aerosol characterization and direct radiative forcing assessment over the ocean. Part II: Application to test cases and validation[J],2004,43(12):1818-1833. |
APA | Costa, MJ,Levizzani, V,&Silva, AM.(2004).Aerosol characterization and direct radiative forcing assessment over the ocean. Part II: Application to test cases and validation.JOURNAL OF APPLIED METEOROLOGY,43(12),1818-1833. |
MLA | Costa, MJ,et al."Aerosol characterization and direct radiative forcing assessment over the ocean. Part II: Application to test cases and validation".JOURNAL OF APPLIED METEOROLOGY 43.12(2004):1818-1833. |
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