Influence of atmospheric aerosols on solar spectral irradiance in an urban area

被引：65

作者：

Badarinath, K. V. S. ^{[1
]}

Kharol, Shailesh Kumar

Kaskaoutis, D. G.

Kambezidis, H. D.

机构：

[1] Natl Remote Sensing Agcy, Dept Space Govt India, Forestry & Ecol Div, Hyderabad 500037, Andhra Pradesh, India

[2] Natl Observ Athens, Atmospher Res Team, Inst Environm Res & Sustainable Dev, GR-11810 Athens, Greece

[3] Univ Ioannina, Dept Phys, Lab Meteorol, GR-45110 Ioannina, Greece

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2007年 / 69卷 / 4-5期

关键词：

aerosol; atmospheric turbidity; solar spectral radiation; erythemal UV; diffuse-to-direct-beam ratio;

D O I：

10.1016/j.jastp.2006.10.010

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：

Solar radiation reaching the earth's surface at different wavelengths has been extensively discussed during the last decades. Great emphasis has been placed on the potential increase in surface UV radiation due to the depletion of stratospheric ozone. The present study reports the variation of solar spectral irradiance and its relation with aerosols over a typical urban environment in India. Synchronous measurements of aerosol optical depth, UV irradiance, aerosol-particle size, black carbon (BC) concentration and solar irradiance have been carried out at the urban station of Hyderabad located in central India. Considerable reduction in the UV intensity has been observed during periods of high aerosol loading. A comparison of the erythemal UV (UVery) intensities on normal day with those of high aerosol loading suggested a similar to 24% decrease in the UVery reaching the ground. Satellite observations showed forest fire occurrence over the region. PAR and diffuse-to-direct-beam ratio of solar irradiance showed marked differences under varying aerosol-loading conditions. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：589 / 599

页数：11

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