Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates
Results of assimilation of multi‐mission‐altimeter data and the GRACE/GOCE gravity data into the finite element ocean model are investigated. By assimilating only absolute dynamical topography data using the ensemble Kalman filter, we were able to improve modeled fields. Results are closer to observ...
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ftawi:oai:epic.awi.de:33754 2023-05-15T18:24:45+02:00 Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates Janjic Pfander, Tijana Albertella, A. Schröter, Jens Savcenko, Roman Rummel, Reiner Bosch, Wolfgang 2012 application/pdf https://epic.awi.de/id/eprint/33754/ https://epic.awi.de/id/eprint/33754/1/Geotop_SPP.pdf https://hdl.handle.net/10013/epic.42179 https://hdl.handle.net/10013/epic.42179.d001 unknown https://epic.awi.de/id/eprint/33754/1/Geotop_SPP.pdf https://hdl.handle.net/10013/epic.42179.d001 Janjic Pfander, T. , Albertella, A. , Schröter, J. orcid:0000-0002-9240-5798 , Savcenko, R. , Rummel, R. and Bosch, W. (2012) Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates , Grace Science Team Meeting, Potsdam, September 2012 - unspecified . hdl:10013/epic.42179 EPIC3Grace Science Team Meeting, Potsdam, 2012-09 Conference notRev 2012 ftawi 2021-12-24T15:38:53Z Results of assimilation of multi‐mission‐altimeter data and the GRACE/GOCE gravity data into the finite element ocean model are investigated. By assimilating only absolute dynamical topography data using the ensemble Kalman filter, we were able to improve modeled fields. Results are closer to observations which were not used for assimilation and lie outside the area covered by altimetry in the Southern Ocean (e.g. temperature of surface drifters or deep temperatures in the Weddell Sea area.) Further, since data assimilation produces ocean fields consistent with absolute DOT, this allows us to use the criteria of Orsi et al 1995 to find mean location of the fronts. The ocean model representation of the locations of fronts is improved by assimilating dynamical ocean topography (DOT) data. Conference Object Southern Ocean Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Southern Ocean Weddell Sea Weddell |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Results of assimilation of multi‐mission‐altimeter data and the GRACE/GOCE gravity data into the finite element ocean model are investigated. By assimilating only absolute dynamical topography data using the ensemble Kalman filter, we were able to improve modeled fields. Results are closer to observations which were not used for assimilation and lie outside the area covered by altimetry in the Southern Ocean (e.g. temperature of surface drifters or deep temperatures in the Weddell Sea area.) Further, since data assimilation produces ocean fields consistent with absolute DOT, this allows us to use the criteria of Orsi et al 1995 to find mean location of the fronts. The ocean model representation of the locations of fronts is improved by assimilating dynamical ocean topography (DOT) data. |
format |
Conference Object |
author |
Janjic Pfander, Tijana Albertella, A. Schröter, Jens Savcenko, Roman Rummel, Reiner Bosch, Wolfgang |
spellingShingle |
Janjic Pfander, Tijana Albertella, A. Schröter, Jens Savcenko, Roman Rummel, Reiner Bosch, Wolfgang Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates |
author_facet |
Janjic Pfander, Tijana Albertella, A. Schröter, Jens Savcenko, Roman Rummel, Reiner Bosch, Wolfgang |
author_sort |
Janjic Pfander, Tijana |
title |
Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates |
title_short |
Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates |
title_full |
Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates |
title_fullStr |
Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates |
title_full_unstemmed |
Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates |
title_sort |
impact of assimilation of dynamical ocean topography on southern ocean circulation estimates |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/33754/ https://epic.awi.de/id/eprint/33754/1/Geotop_SPP.pdf https://hdl.handle.net/10013/epic.42179 https://hdl.handle.net/10013/epic.42179.d001 |
geographic |
Southern Ocean Weddell Sea Weddell |
geographic_facet |
Southern Ocean Weddell Sea Weddell |
genre |
Southern Ocean Weddell Sea |
genre_facet |
Southern Ocean Weddell Sea |
op_source |
EPIC3Grace Science Team Meeting, Potsdam, 2012-09 |
op_relation |
https://epic.awi.de/id/eprint/33754/1/Geotop_SPP.pdf https://hdl.handle.net/10013/epic.42179.d001 Janjic Pfander, T. , Albertella, A. , Schröter, J. orcid:0000-0002-9240-5798 , Savcenko, R. , Rummel, R. and Bosch, W. (2012) Impact of assimilation of dynamical ocean topography on Southern Ocean circulation estimates , Grace Science Team Meeting, Potsdam, September 2012 - unspecified . hdl:10013/epic.42179 |
_version_ |
1766205633084784640 |