Transport of photosynthetically active radiation in sea ice and the ocean

Zhonghai Jin; Knut H. Stamnes; W. F. Weeks

doi:10.1117/12.190049

26 October 1994 Transport of photosynthetically active radiation in sea ice and the ocean

Zhonghai Jin, Knut H. Stamnes, W. F. Weeks

Proceedings Volume 2258, Ocean Optics XII; (1994) https://doi.org/10.1117/12.190049
Event: Ocean Optics XII, 1994, Bergen, Norway

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.

Citation Download Citation

Zhonghai Jin, Knut H. Stamnes, and W. F. Weeks "Transport of photosynthetically active radiation in sea ice and the ocean", Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); https://doi.org/10.1117/12.190049

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