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Please use this identifier to cite or link to this item:
http://hdl.handle.net/1956/629
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| Title: | The effect of wind speed products and wind speed-gas exchange relationships on interannual variability of the air-sea CO2 gas transfer velocity |
| Authors: | Olsen, Are
Wanninkhof, Rik
Triñanes, Joaquin
Johannessen, Truls |
| Issue Date: | 2005 |
| Publisher: | Blackwell |
| Series/Report no.: | Tellus;57B |
| Abstract: | The lack of a firm relationship between wind speed (U10) and gas transfer velocity (k) is considered to be one of the
factors that hinders accurate quantification of interannual variations of ocean–atmosphere CO2 fluxes. In this paper
the interannual variations of k of using four different k–U10 parametrizations are examined using wind speed data
from the NCEP/NCAR reanalysis project. The extent to which interannual variations are faithfully reproduced in the
NCEP/NCAR data is also investigated. This is carried out through comparison with QuikSCAT data. Compared with
4 yr of QuikSCAT data, NCEP/NCAR data reproduce interannual k variations, although the absolute magnitude of
k is underestimated. Interannual k variation shows great sensitivity to selection of k–U10 parametrization, and in the
Westerlies it changes by a factor of three depending on k–U10 parametrization. Use of monthly mean winds speeds
leads to overestimation of interannual k variations compared with k variations... |
| URI: | http://hdl.handle.net/1956/629 |
| ISSN: | 0280-6509
1600-0889 |
| Appears in Collections: | Eprints by the Geophysical Institute
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