JPL Technical Report Server

A three-dimensional variational data assimilation scheme for the Regional Ocean Modeling System : implementation and basic experiments

Show simple item record

dc.contributor.author Li, Zhijin
dc.contributor.author Chao, Yi
dc.contributor.author McWilliams, James C.
dc.contributor.author Ide, Kayo
dc.date.accessioned 2008-08-18T22:23:33Z
dc.date.available 2008-08-18T22:23:33Z
dc.date.issued 2008-05-03
dc.identifier.citation Journal Of Geophysical Research, Vol. 113, C05002, doi:10.1029/2006JC004042, 2008 en_US
dc.identifier.clearanceno 06-3842
dc.identifier.uri http://hdl.handle.net/2014/40919
dc.description.abstract A three-dimensional variational data assimilation scheme for the Regional Ocean Modeling System (ROMS), named ROMS3DVAR, has been described in the work of Li et al. (2008). In this paper, ROMS3DVAR is applied to the central California coastal region, an area characterized by inhomogeneity and anisotropy, as well as by dynamically unbalanced flows. A method for estimating the model error variances from limited observations is presented, and the construction of the inhomogeneous and anisotropic error correlations based on the Kronecker product is demonstrated. A set of single observation experiments illustrates the inhomogeneous and anisotropic error correlations and weak dynamic constraints used. Results are presented from the assimilation of data gathered during the Autonomous Ocean Sampling Network (AOSN) experiment during August 2003. The results show that ROMS3DVAR is capable of reproducing complex flows associated with upwelling and relaxation, as well as the rapid transitions between them. Some difficulties encountered during the experiment are also discussed. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher American Geophysical Union. en_US
dc.subject Regional Ocean Modeling System (ROMS) en_US
dc.subject upwelling en_US
dc.subject California coastal ocean
dc.title A three-dimensional variational data assimilation scheme for the Regional Ocean Modeling System : implementation and basic experiments en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search


Browse

My Account