Boundary-Layer Meteorology

, Volume 15, Issue 3, pp 357–360 | Cite as

The air density correction to eddy flux measurements

  • E. P. Jones
  • S. D. Smith
Article

Abstract

Under the usual assumptions for the atmospheric surface layer, we show that air density fluctuations, particularly those due to temperature fluctuations associated with a heat flux, result in a small mean vertical wind velocity. Because of this, there can be a significant correction to eddy flux measurements of passive scalars, for example CO2, whose average concentration is very large compared to concentration fluctuations associated with the eddy flux.

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References

  1. Bakan, S.: 1978, ‘Note on the eddy correlation method for CO2 flux measurements’.Boundary-Layer Meteorol.14, 597–600.CrossRefGoogle Scholar
  2. Businger, J. S.: 1975, ‘Interactions of sea and atmosphere’,Rev. Geophys. Space Phys. 13, 720–726, 817–822.CrossRefGoogle Scholar
  3. Elliott, J. A.: 1972, ‘Microscale pressure fluctuations measured within the lower atmospheric boundary layer’,J. Fluid Mech. 53, Part 2, 351–383.CrossRefGoogle Scholar
  4. Jones, E. P. and Smith, S. D.: 1977, ‘A first measurement of sea-air CO2 flux by eddy correlation’,J. Geophys. Res. 82, 5990–5992.CrossRefGoogle Scholar
  5. Jones, E. P., Ward, T. V., and Zwick, H. H.: 1978, ‘A fast response atmospheric CO2 sensor’,Atmos. Environ. 12, 845–851.CrossRefGoogle Scholar
  6. Kraus, E. B.: 1972,Atmosphere-Ocean Interaction. Oxford University Press, London, 275 pp.Google Scholar
  7. Pond, S.: 1971, ‘Air-sea interaction’,EOS Trans AGU 52, IUGG389-IUGG394.CrossRefGoogle Scholar
  8. Smith, S. D.: 1974, ‘Eddy flux measurements over Lake Ontario’,Boundary-Layer Meteorol. 6, 235–255.CrossRefGoogle Scholar

Copyright information

© D. Reidel Publishing Company 1978

Authors and Affiliations

  • E. P. Jones
    • 1
  • S. D. Smith
    • 1
  1. 1.Atlantic Oceanographic LaboratoryBedford Institute of OceanographyDartmouthCanada

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