Increase of biologically effective ultraviolet radiation with altitude

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  • W. Ambach
    Institute of Medical Physics, University of Innsbruck, Muelterstrasse 44, A-6020 Innsbruck, Austria
  • M. Blumthaler
    Institute of Medical Physics, University of Innsbruck, Muelterstrasse 44, A-6020 Innsbruck, Austria
  • T. Schöpf
    Institute of Medical Physics, University of Innsbruck, Muelterstrasse 44, A-6020 Innsbruck, Austria

書誌事項

公開日
1993-05
権利情報
  • https://journals.sagepub.com/page/policies/text-and-data-mining-license
  • https://www.elsevier.com/tdm/userlicense/1.0/
DOI
  • 10.1580/0953-9859-4.2.189
公開者
SAGE Publications

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説明

<jats:p> Applying Green's radiation model, the increase with altitude of ultraviolet radiation effective to produce erythema, keratitis, and cataract have been calculated. The reflectance of the terrain yields the most significant influence. With regard to erythema, keratitis, and cataract, the increase with altitude of irradiation onto a horizontal plane varies between 1.07–1.59 per 3000 m dependent on solar elevation, step in altitude, and albedo of the terrain. If the eyes are directed towards the terrain, as usually practiced when hiking in high mountain regions, the ocular exposures of ultraviolet radiation effective to produce keratitis and cataract increase by a factor of 16 at the transition from snow-free to snow-covered terrain. </jats:p>

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