Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0815.1 |
Shortwave Spectral Radiative Signatures and Their Physical Controls | |
Gristey, Jake J.1,2; Chiu, J. Christine3,4; Gurney, Robert J.4; Shine, Keith P.4; Havemann, Stephan5; Thelen, Jean-Claude5; Hill, Peter G.4 | |
2019-08-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:15页码:4805-4828 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | The spectrum of reflected solar radiation emerging at the top of the atmosphere is rich with Earth system information. To identify spectral signatures in the reflected solar radiation and directly relate them to the underlying physical properties controlling their structure, over 90 000 solar reflectance spectra are computed over West Africa in 2010 using a fast radiation code employing the spectral characteristics of the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY). Cluster analysis applied to the computed spectra reveals spectral signatures related to distinct surface properties, and cloud regimes distinguished by their spectral shortwave cloud radiative effect (SWCRE). The cloud regimes exhibit a diverse variety of mean broadband SWCREs, and offer an alternative approach to define cloud type for SWCRE applications that does not require any prior assumptions. The direct link between spectral signatures and distinct physical properties extracted from clustering remains robust between spatial scales of 1, 20, and 240 km, and presents an excellent opportunity to understand the underlying properties controlling real spectral reflectance observations. Observed SCIAMACHY spectra are assigned to the calculated spectral clusters, showing that cloud regimes are most frequent during the active West African monsoon season of June-October in 2010, and all cloud regimes have a higher frequency of occurrence during the active monsoon season of 2003 compared with the inactive monsoon season of 2004. Overall, the distinct underlying physical properties controlling spectral signatures show great promise for monitoring evolution of the Earth system directly from solar spectral reflectance observations. |
英文关键词 | Radiation budgets Shortwave radiation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000474769700002 |
WOS关键词 | CLOUD REGIMES ; CLIMATE ; BUDGET ; VARIABILITY ; INSIGHTS ; PACIFIC ; TRENDS ; IMPACT ; ALBEDO ; PERIOD |
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/185716 |
专题 | 气候变化 |
作者单位 | 1.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 2.NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO 80305 USA; 3.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 4.Univ Reading, Dept Meteorol, Reading, Berks, England; 5.Met Off, Exeter, Devon, England |
推荐引用方式 GB/T 7714 | Gristey, Jake J.,Chiu, J. Christine,Gurney, Robert J.,et al. Shortwave Spectral Radiative Signatures and Their Physical Controls[J]. JOURNAL OF CLIMATE,2019,32(15):4805-4828. |
APA | Gristey, Jake J..,Chiu, J. Christine.,Gurney, Robert J..,Shine, Keith P..,Havemann, Stephan.,...&Hill, Peter G..(2019).Shortwave Spectral Radiative Signatures and Their Physical Controls.JOURNAL OF CLIMATE,32(15),4805-4828. |
MLA | Gristey, Jake J.,et al."Shortwave Spectral Radiative Signatures and Their Physical Controls".JOURNAL OF CLIMATE 32.15(2019):4805-4828. |
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