Wave‐Related Reynolds Number Parameterizations of CO2 and DMS Transfer Velocities

Brumer, Sophia E.; Zappa, Christopher J.; Blomquist, Byron W.; Fairall, Christopher W.; Cifuentes‐Lorenzen, Alejandro; Edson, James B.; Brooks, Ian M.; Huebert, Barry J.

doi:10.1002/2017GL074979

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Wave‐Related Reynolds Number Parameterizations of CO2 and DMS Transfer Velocities

2017
By Brumer, Sophia E. ; Zappa, Christopher J. ; Blomquist, Byron W. ; ...
Source: Geophysical Research Letters 44(19): 9865-9875, 2017

[PDF-590.21 KB]

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Journal Title:

Geophysical Research Letters
Personal Author:

Brumer, Sophia E. ; Zappa, Christopher J. ; Blomquist, Byron W. ; Fairall, Christopher W. ; Cifuentes‐Lorenzen, Alejandro ; ... More +

Brumer, Sophia E. ; Zappa, Christopher J. ; Blomquist, Byron W. ; Fairall, Christopher W. ; Cifuentes‐Lorenzen, Alejandro ; Edson, James B. ; Brooks, Ian M. ; Huebert, Barry J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; PSL (Physical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; PSL (Physical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

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.
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Carbon Dioxide Climate Change Ocean-atmosphere Interaction
Source:

Geophysical Research Letters 44(19): 9865-9875, 2017
DOI:

https://doi.org/10.1002/2017GL074979
Document Type:

Journal Article
Funding:

Grant no. NA07OAR4310094 ; Grant no. NA07OAR4310084

Grant no. NA07OAR4310094 ; Grant no. NA07OAR4310084 Less -
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urn:sha256:60e466b31e872ad53257d42c1172bcf8023cdbf40f01988f6eefadb1ba2a4c3f
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Wave‐Related Reynolds Number Parameterizations of CO2 and DMS Transfer Velocities

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