Horizontal and vertical structure of the representer functions for sea surface measurements in a coastal circulation model
The representer functions used to propagate the information from observations onto model variables in a sequential data assimilation scheme are calculated with a statistical method. The Princeton Ocean Model is used in a simple configuration simulating the North Current flowing along the French coas...
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Veröffentlicht in: | Journal of physical oceanography 2000-10, Vol.30 (10), p.2627-2635 |
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creator | ECHEVIN, Vincent DE MEY, Pierre EVENSEN, Geir |
description | The representer functions used to propagate the information from observations onto model variables in a sequential data assimilation scheme are calculated with a statistical method. The Princeton Ocean Model is used in a simple configuration simulating the North Current flowing along the French coasts in the northwestern Mediterranean Sea. The influence of sea level measurements on the models' three-dimensional temperature and velocity fields is investigated. Inhomogeneities and directions of anisotropy are evidenced. A comparison with simplified reduced order assimilation methods suggests that such schemes will not allow for consistent assimilation of nearshore altimetric data. |
doi_str_mv | 10.1175/1520-0485(2000)030<2627:HAVSOT>2.0.CO;2 |
format | Article |
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source | American Meteorological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
subjects | Coastal oceanography, estuaries. Regional oceanography Data collection Earth, ocean, space Exact sciences and technology External geophysics Marine Measurement Ocean currents Oceanography Physics of the oceans Statistical methods |
title | Horizontal and vertical structure of the representer functions for sea surface measurements in a coastal circulation model |
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