Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean
Sea surface height, sea surface temperature, and temperature profiles at depth collected between January and December 2005 are assimilated into a realistic eddy permitting primitive equation model of the North Atlantic Ocean using the Ensemble Kalman Filter. Sixty ensemble members are generated by a...
Published in: | Journal of Geophysical Research: Oceans |
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ftvliz:oai:oma.vliz.be:256948 2023-05-15T17:31:07+02:00 Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean Yan, Y. Barth, A. Beckers, J.M. Candille, G. Brankart, J. Brasseur, P. 2015 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=256948 en eng info:eu-repo/semantics/altIdentifier/wos/000359776000029 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1002/2014JC010349 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=256948 info:eu-repo/semantics/restrictedAccess %3Ci%3EJ.+Geophys.+Res.+Oceans.+120%287%29%3C%2Fi%3E%3A+5134-5157.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1002%2F2014JC010349%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1002%2F2014JC010349%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftvliz https://doi.org/10.1002/2014JC010349 2022-05-01T10:39:20Z Sea surface height, sea surface temperature, and temperature profiles at depth collected between January and December 2005 are assimilated into a realistic eddy permitting primitive equation model of the North Atlantic Ocean using the Ensemble Kalman Filter. Sixty ensemble members are generated by adding realistic noise to the forcing parameters related to the temperature. The ensemble is diagnosed and validated by comparison between the ensemble spread and the model/ observation difference, as well as by rank histogram before the assimilation experiments. An incremental analysis update scheme is applied in order to reduce spurious oscillations due to the model state correction. The results of the assimilation are assessed according to both deterministic and probabilistic metrics with independent/semiindependent observations. For deterministic validation, the ensemble means, together with the ensemble spreads are compared to the observations, in order to diagnose the ensemble distribution properties in a deterministic way. For probabilistic validation, the continuous ranked probability score (CRPS) is used to evaluate the ensemble forecast system according to reliability and resolution. The reliability is further decomposed into bias and dispersion by the reduced centered random variable (RCRV) score in order to investigate the reliability properties of the ensemble forecast system. The improvement of the assimilation is demonstrated using these validation metrics. Finally, the deterministic validation and the probabilistic validation are analyzed jointly. The consistency and complementarity between both validations are highlighted. Article in Journal/Newspaper North Atlantic Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Journal of Geophysical Research: Oceans 120 7 5134 5157 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
Sea surface height, sea surface temperature, and temperature profiles at depth collected between January and December 2005 are assimilated into a realistic eddy permitting primitive equation model of the North Atlantic Ocean using the Ensemble Kalman Filter. Sixty ensemble members are generated by adding realistic noise to the forcing parameters related to the temperature. The ensemble is diagnosed and validated by comparison between the ensemble spread and the model/ observation difference, as well as by rank histogram before the assimilation experiments. An incremental analysis update scheme is applied in order to reduce spurious oscillations due to the model state correction. The results of the assimilation are assessed according to both deterministic and probabilistic metrics with independent/semiindependent observations. For deterministic validation, the ensemble means, together with the ensemble spreads are compared to the observations, in order to diagnose the ensemble distribution properties in a deterministic way. For probabilistic validation, the continuous ranked probability score (CRPS) is used to evaluate the ensemble forecast system according to reliability and resolution. The reliability is further decomposed into bias and dispersion by the reduced centered random variable (RCRV) score in order to investigate the reliability properties of the ensemble forecast system. The improvement of the assimilation is demonstrated using these validation metrics. Finally, the deterministic validation and the probabilistic validation are analyzed jointly. The consistency and complementarity between both validations are highlighted. |
format |
Article in Journal/Newspaper |
author |
Yan, Y. Barth, A. Beckers, J.M. Candille, G. Brankart, J. Brasseur, P. |
spellingShingle |
Yan, Y. Barth, A. Beckers, J.M. Candille, G. Brankart, J. Brasseur, P. Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean |
author_facet |
Yan, Y. Barth, A. Beckers, J.M. Candille, G. Brankart, J. Brasseur, P. |
author_sort |
Yan, Y. |
title |
Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean |
title_short |
Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean |
title_full |
Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean |
title_fullStr |
Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean |
title_full_unstemmed |
Ensemble assimilation of ARGO temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the North Atlantic Ocean |
title_sort |
ensemble assimilation of argo temperature profile, sea surface temperature, and altimetric satellite data into an eddy permitting primitive equation model of the north atlantic ocean |
publishDate |
2015 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=256948 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
%3Ci%3EJ.+Geophys.+Res.+Oceans.+120%287%29%3C%2Fi%3E%3A+5134-5157.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1002%2F2014JC010349%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1002%2F2014JC010349%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000359776000029 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1002/2014JC010349 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=256948 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/2014JC010349 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
120 |
container_issue |
7 |
container_start_page |
5134 |
op_container_end_page |
5157 |
_version_ |
1766128441777717248 |