Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2012JD018056 |
Influence of desert dust intrusions on ground-based and satellite-derived ultraviolet irradiance in southeastern Spain | |
Anton, M.1; Valenzuela, A.2,3; Roman, R.4; Lyamani, H.2,3; Krotkov, N.5; Arola, A.6; Olmo, F. J.2,3; Alados-Arboledas, L.2,3 | |
通讯作者 | Anton, M. |
来源期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2012 |
卷号 | 117 |
英文摘要 | The desert dust aerosols strongly affect propagation of solar radiation through the atmosphere, reducing surface irradiance available for photochemistry and photosynthesis. This paper evaluates effects of desert dust on surface UV erythemal irradiance (UVER), as measured by a ground-based broadband UV radiometer and retrieved from the satellite Ozone Monitoring Instrument (OMI) at Granada (southern Spain) from January 2006 to December 2010. The dust effects are characterized by the transmittance ratio of the measured UVER to the corresponding modeled clear sky value. The transmittance has an exponential dependency on aerosol optical depth (AOD), with minimum values of similar to 0.6 (attenuation of similar to 40%). The OMI UVER algorithm does not account for UV aerosol absorption, which results in overestimation of the ground-based UVER especially during dust episodes with a mean relative difference up to 40%. The application of aerosol absorption post-correction method reduces OMI bias up to similar to 13%. The results highlight great effect of desert dust on the surface UV irradiance in regions like southern Spain, where dust intrusions from Sahara region are very frequent. |
类型 | Article |
语种 | 英语 |
国家 | Spain ; USA ; Finland |
收录类别 | SCI-E |
WOS记录号 | WOS:000309829200001 |
WOS关键词 | AEROSOL OPTICAL-PROPERTIES ; MONITORING INSTRUMENT OMI ; SURFACE UV IRRADIANCE ; EL ARENOSILLO SPAIN ; RADIATIVE PROPERTIES ; BREWER MEASUREMENTS ; FORCING EFFICIENCY ; IBERIAN PENINSULA ; LIGHT-ABSORPTION ; PRINCIPAL PLANE |
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/2XILL650/173619 |
作者单位 | 1.Univ Extremadura, Dept Fis, ES-06071 Badajoz, Spain; 2.Univ Granada, Dept Fis Aplicada, Granada, Spain; 3.Univ Granada, Ctr Andaluz Medio Ambiente, Granada, Spain; 4.Univ Valladolid, Dept Fis Aplicada, Valladolid, Spain; 5.NASA, Goddard Space Flight Ctr, Lab Atmospher Chem & Dynam, Greenbelt, MD 20771 USA; 6.Finnish Meteorol Inst, Kuopio, Finland |
推荐引用方式 GB/T 7714 | Anton, M.,Valenzuela, A.,Roman, R.,et al. Influence of desert dust intrusions on ground-based and satellite-derived ultraviolet irradiance in southeastern Spain[J],2012,117. |
APA | Anton, M..,Valenzuela, A..,Roman, R..,Lyamani, H..,Krotkov, N..,...&Alados-Arboledas, L..(2012).Influence of desert dust intrusions on ground-based and satellite-derived ultraviolet irradiance in southeastern Spain.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,117. |
MLA | Anton, M.,et al."Influence of desert dust intrusions on ground-based and satellite-derived ultraviolet irradiance in southeastern Spain".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 117(2012). |
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