Brumer, SE, Zappa, CJ, Blomquist, BW et al. (5 more authors) (2017) Wave‐Related Reynolds Number Parameterizations of CO₂ and DMS Transfer Velocities. Geophysical Research Letters, 44 (19). pp. 9865-9875. ISSN 0094-8276
Abstract
Predicting future climate hinges on our understanding of and ability to quantify air‐sea gas transfer. The latter relies on parameterizations of the gas transfer velocity k, which represents physical mass transfer mechanisms and is usually parameterized as a nonlinear function of wind forcing. In an attempt to reduce uncertainties in k, this study explores empirical parameterizations that incorporate both wind speed and sea state dependence via wave‐wind and breaking Reynolds numbers, RH and RB. Analysis of concurrent eddy covariance gas transfer and measured wavefield statistics supplemented by wave model hindcasts shows for the first time that wave‐related Reynolds numbers collapse four open ocean data sets that have a wind speed dependence of CO₂ transfer velocity ranging from lower than quadratic to cubic. Wave‐related Reynolds number and wind speed show comparable performance for parametrizing dimethyl sulfide (DMS) which, because of its higher solubility, is less affected by bubble‐mediated exchange associated with wave breaking.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017, American Geophysical Union. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Wave-related Reynolds numbers; air-sea gas transfer; sea state; CO2; DMS; wind waves |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds) |
Funding Information: | Funder Grant number NERC NE/J020893/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Sep 2017 13:00 |
Last Modified: | 22 Mar 2018 15:56 |
Status: | Published |
Publisher: | American Geophysical Union (AGU) |
Identification Number: | 10.1002/2017GL074979 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121817 |