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Proceedings Paper

Transport of photosynthetically active radiation in sea ice and the ocean
Author(s): Zhonghai Jin; Knut H. Stamnes; W. F. Weeks
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Paper Abstract

A recently developed radiative transfer model is applied to study the transport of photosynthetically active radiation (PAR) in the whole coupled atmosphere, sea ice and ocean system. This model rigorously accounts for the multiple scattering and absorption by the atmospheric molecules, clouds, snow and sea water, as well as the brine pockets and air bubbles trapped in sea ice. Both the spectral distribution and the seasonal variation of PAR at various levels in the ice and ocean have been investigated for different conditions. Results show that clouds, snow and ice algae all have important effects on the PAR availability to the microbial community under ice. The algae in the ice also significantly alters the spectral distribution of PAR transmitted to the ocean. Compared with the effects of clouds, snow and ice algae, the effect of changes in the amount of ozone in the atmosphere, the main absorptive gas in the PAR spectrum, on the amount of PAR entering the ice and ocean is negligible.

Paper Details

Date Published: 26 October 1994
PDF: 11 pages
Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190049
Show Author Affiliations
Zhonghai Jin, Univ. of Alaska (United States)
Knut H. Stamnes, Univ. of Alaska (United States)
W. F. Weeks, Univ. of Alaska (United States)

Published in SPIE Proceedings Vol. 2258:
Ocean Optics XII
Jules S. Jaffe, Editor(s)

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