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Local cloud cover, ground-based and satellite measurements of erythemal dose rate for an urban, tropical site in Southern Hemisphere

被引：14
|
作者：
Silva, A. A. [1 ]
机构：
[1] Inst Estudos Avancados, BR-12228001 Sao Jose Dos Campos, SP, Brazil
来源：
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2011年 / 73卷 / 17-18期
关键词：
Ultraviolet radiation; Clouds; Aerosols; Ground-based and satellite measurements; MONITORING INSTRUMENT OMI; EL ARENOSILLO SPAIN; UV IRRADIANCE; TOTAL OZONE; BREWER MEASUREMENTS; B RADIATION; SOLAR UV; SURFACE; VARIABILITY; AREA;
D O I：
10.1016/j.jastp.2011.09.002
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Clouds are the main tropospheric agent in the modulation of solar ultraviolet (UV) radiation in the Earth's surface. Clouds produce both attenuation and enhancement of radiation. This work shows how the local cloud cover (LCC) can partially explain mismatches between overpass satellite and ground-based instruments in the erythemal dose rate (EDR) for an urban, tropical site in Southern Hemisphere. Best agreement occurs for the scarcer cloud cover of winter. The Ozone Monitoring Instrument (OMI) EDR is on average 15% higher than ground-based measurements for cloudless skies. This value is due to both OMI algorithm misconception about aerosols and instrumental uncertainty. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2474 / 2481
页数：8
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