Mathematics – Logic
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3119104s&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 19, CiteID L19104
Mathematics
Logic
6
Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504), Global Change: Atmosphere (0315, 0325), Oceanography: Biological And Chemical: Radioactivity And Radioisotopes
Scientific paper
There is a need for improved estimates of the radon (222Rn) flux density from the ocean for use in the modeling and interpretation of atmospheric radon in global climate and air pollution studies. We use a modification of a frequently used model of gas transfer to generate global predictions of ocean radon flux density for each month of the year (climate averaged) on a 192 by 94 global grid. Compared with the often-used approximation of a constant radon flux from the ocean, the model's predictions indicate large variations over regions of the ocean (a factor of ten is not uncommon). For example, latitude bands near the equator and Southern Ocean are predicted to emit relatively high average radon flux compared with other latitude bands. The predicted annually-averaged flux density from the ocean is 0.0382 mBq m-2 s-1 (0.00182 atoms cm-2 s-1), smaller than some commonly-used estimates.
Huang Shizhen
Schery S. D.
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