Subtleties in forcing eddy resolving ocean models with satellite wind data

Xu, Yongsheng; Scott, Robert B.. 2008 Subtleties in forcing eddy resolving ocean models with satellite wind data. Ocean Modelling, 20 (3). 240-251. 10.1016/j.ocemod.2007.09.003

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Official URL: http://dx.doi.org/10.1016/j.ocemod.2007.09.003

Abstract/Summary

Using new global satellite remote sensing data, we show that ignoring the ocean current dependence in the wind stress artificially increases global wind power input to the oceanic general circulation by about 32%, and more than doubles the input in the regions of strong ocean current systems. Scatterometer-derived wind stress naturally accounts for the moving ocean that is not included in traditional wind stress products. However, forcing an ocean model with a scatterometer-derived wind stress cannot actually account for the ocean current effect on the wind power input. The difference between the real and modeled surface eddy fields can reduce the damping associated with the ocean current dependence in wind stress, leading to a positive bias in global wind power input of about 23%. Most of this spurious energy flux goes directly to the fluctuation eddy field and is several times larger than the energy flux to real ocean eddies.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1016/j.ocemod.2007.09.003
ISSN:	1463-5003
Additional Keywords:	Ocean circulation; Wind power; World ocean; Modeling; Satellites; Parameterization
Date made live:	03 Mar 2009 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/165652

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1016/j.ocemod.2007.09.003

ISSN:

1463-5003

Additional Keywords:

Ocean circulation; Wind power; World ocean; Modeling; Satellites; Parameterization

Date made live:

03 Mar 2009 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/165652