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Detailed Reference Information |
Sidorenko, D., Danilov, S., Kivman, G. and Schröter, J. (2006). On the use of a deep pressure gradient constraint for estimating the steady state ocean circulation from hydrographic data. Geophysical Research Letters 33: doi: 10.1029/2005GL024716. issn: 0094-8276. |
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Estimating unobserved quantities such as velocities and transports indirectly from temperature and salinity measurements is one of the best studied problems in physical oceanography. It is ill posed. The ill posedness is traditionally removed by adding prior information such as a level of no motion or a set of conservation principles. We propose to use the deep pressure gradient taken from a prognostic integration of an ocean general circulation model in primitive equations as a weak constraint when using the stationary inverse of the same model to derive transports. First results for the western boundary currents in the North Atlantic compare well with previous estimates from several studies including direct measurements. |
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Abstract |
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Keywords
Oceanography, General, Ocean data assimilation and reanalysis, Oceanography, General, Numerical modeling (0545, 0560), Oceanography, Physical, Currents |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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