Estimates of the 10-m Neutral Sea Surface Drag Coefficient from Aircraft Eddy-Covariance Measurements Public Deposited

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  • The 10-m neutral drag coefficient (C[subscript DN10]) over the sea is calculated using a large observational dataset consisting of 5800 estimates of the mean flow and the fluxes from aircraft eddy-covariance measurements. The dataset includes observations from 11 different experiments with four different research aircraft. One of the goals is to investigate how sensitive C[subscript DN10] is to the analysis method. As such, C[subscript DN10] derived from six unique processing schemes that involve different methods for averaging the surface stress and the wind speed are compared. Especially in weak winds, the resulting C[subscript DN10] values depend on the choice of processing. Four distinct regimes of C[subscript DN10] are identified: weak winds where calculating C[subscript DN10] is not well posed, moderate winds (4 to 10 m s⁻¹) where C[subscript DN10] is a constant, strong winds (10 to 20 m s⁻¹) where C[subscript DN10] increases linearly with increasing wind speed, and very strong winds (20 to 24 m s⁻¹) where C[subscript DN10] steadily decreases with increasing wind speed. However, as this last regime is based on data from a single experiment, additional data are needed to confirm this apparent decrease in C[subscript DN10] for winds exceeding 20 m s⁻¹.
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  • Vickers, D., Mahrt, L., & Andreas, E. (2013). Estimates of the 10-m neutral sea surface drag coefficient from aircraft eddy-covariance measurements. Journal of Physical Oceanography, 43(2), 301-310. doi: 10.1175/JPO-D-12-0101.1
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  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-04-15T16:26:49Z No. of bitstreams: 1 VickersDeanEarthOceanAtmosphericSciencesEstimates10mNeutral.pdf: 974999 bytes, checksum: af8457bb626d5acea52992993f9fa37d (MD5)
  • description.provenance : Made available in DSpace on 2013-04-15T16:26:49Z (GMT). No. of bitstreams: 1 VickersDeanEarthOceanAtmosphericSciencesEstimates10mNeutral.pdf: 974999 bytes, checksum: af8457bb626d5acea52992993f9fa37d (MD5) Previous issue date: 2013-02

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