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Operational Ocean Data Assimilation

Title: Operational Ocean Data Assimilation.
Name(s): Jacobs, Gregg A., author
Barron, Charlie N., author
Blain, Cheryl A., author
Carrier, Matthew J., author
D'Addezio, Joseph M., author
Helber, Robert W., author
May, Jackie C., author
Ngodock, Hans E., author
Osborne, John J., author
Orzech, Mark D., author
Rowley, Clark D., author
Souopgui, Innocent, author
Smith, Scott R., author
Veeramony, Jay, author
Yaremchuk, Max, author
Type of Resource: text
Genre: Text
Book Part
Date Issued: 2018-08-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Operational ocean data assimilation is necessary to continually correct and maintain accurate ocean forecasts. The primary GODAE objective was prediction of mesoscale eddies, and the science community has successfully addressed this issue. Here, we examine a data assimilation process for this problem, beginning with a generalized solution of 4D variation assimilation (4DVar) so that assumptions will be clear as we reduce to a 3DVar that is often used operationally. The primary difficulty lies in specifying the covariances that relate variables at different locations in space and time. Simplifications are applied to provide covariances that sufficiently describe the relations and are computationally feasible. Some deficiencies are introduced through the assumptions leading to the 3DVar and within the covariances, and this points to areas of future research. Prior assumptions were predicated on the expected observing systems and numerical model capabilities, which were all consistent with prediction of mesoscale features. We believe that numerical models and observations will surpass present capability, and there is strong motivation to move data assimilation forward to achieve prediction at scales not now feasible.
Identifier: FSU_libsubv1_scholarship_submission_1536244592_c06ea90f (IID), 10.17125/gov2018.ch18 (DOI)
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Persistent Link to This Record:
Host Institution: FSU
Is Part Of: New Frontiers in Operational Oceanography.

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Jacobs, G. A., Barron, C. N., Blain, C. A., Carrier, M. J., D'Addezio, J. M., Helber, R. W., … Yaremchuk, M. (2018). Operational Ocean Data Assimilation. New Frontiers In Operational Oceanography. Retrieved from