Cited by 4,737Marine and coastal ecosystemsOcean Waves and Remote SensingOceanographic and Atmospheric Processes

Relationship between wind speed and gas exchange over the ocean

Wanninkhof, Rik·1992·Journal of Geophysical Research: Oceans

Abstract

Relationships between wind speed and gas transfer, combined with knowledge of the partial pressure difference of CO 2 across the air‐sea interface are frequently used to determine the CO 2 flux between the ocean and the atmosphere. Little attention has been paid to the influence of variability in wind speed on the calculated gas transfer velocities and the possibility of chemical enhancement of CO 2 exchange at low wind speeds over the ocean. The effect of these parameters is illustrated using a quadratic dependence of gas exchange on wind speed which is fit through gas transfer velocities over the ocean determined by the natural‐ 14 C disequilibrium and the bomb‐ 14 C inventory methods. Some of the variability between different data sets can be accounted for by the suggested mechanisms, but much of the variation appears due to other causes. Possible causes for the large difference between two frequently used relationships between gas transfer and wind speed are discussed. To determine fluxes of gases other than CO 2 across the air‐water interface, the relevant expressions for gas transfer, and the temperature and salinity dependence of the Schmidt number and solubility of several gases of environmental interest are included in an appendix.

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Crossref · 10.1029/92jc00188

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  • If hydrocarbons originate from the sea, an exponential relationship between measured mixing ratios and wind speed can be expected due to the flux dependency on wind strength.

    “If the hydrocarbons originate from the sea, then an exponential relationship between the measured mixing ratios and wind speed can be expected due to the flux dependency on wind strength27,28.”

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Authors
Wanninkhof, R.
Corresponding author
Wanninkhof, Rik
Venue
Journal of Geophysical Research: Oceans
Published
1992-05-15
Volume
97
Issue
C5
Pages
7373-7382
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2094300388
Cited by
4,737
References
86
Citations by year
2026: 138 · 2025: 174 · 2024: 216 · 2023: 208 · 2022: 222 · 2021: 265 · 2020: 192 · 2019: 177 · 2018: 168 · 2017: 194 · 2016: 182 · 2015: 227 · 2014: 166 · 2013: 210 · 2012: 148
FWCI
37.11
Type
journal article
Language
en
Open access
closed
Locations
Journal of Geophysical Research Atmospheres (publishedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Ocean Waves and Remote Sensing
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
Keywords
wind speed, gas transfer velocity, air-sea gas exchange, ocean CO2 flux, Schmidt number, gas solubility

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