High resolution dynamic ocean topography in the Southern Ocean from GOCE
A mean dynamic ocean topography (MDT) has been computed using a high resolution GOCE (Gravity field and steady-state Ocean Circulation Explorer) gravity model and a new mean sea surface obtained from a combination of satellite altimetry covering the period 1992 October till 2010 April. The considere...
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ftawi:oai:epic.awi.de:33728 2024-09-15T18:37:00+00:00 High resolution dynamic ocean topography in the Southern Ocean from GOCE Albertella, Alberta Savchenko, Roman Janjic Pfander, Tijana Rummel, Reiner Bosch, Wolfgang Schröter, Jens 2012 application/pdf https://epic.awi.de/id/eprint/33728/ https://epic.awi.de/id/eprint/33728/1/GJI2012final.pdf http://gji.oxfordjournals.org/content/190/2/922 https://hdl.handle.net/10013/epic.42121 https://hdl.handle.net/10013/epic.42121.d001 unknown https://epic.awi.de/id/eprint/33728/1/GJI2012final.pdf https://hdl.handle.net/10013/epic.42121.d001 Albertella, A. , Savchenko, R. , Janjic Pfander, T. , Rummel, R. , Bosch, W. and Schröter, J. orcid:0000-0002-9240-5798 (2012) High resolution dynamic ocean topography in the Southern Ocean from GOCE , Geophys. J. Int., (190), pp. 922-930 . doi:10.1111/j.1365-246X.2012.05531.x <https://doi.org/10.1111/j.1365-246X.2012.05531.x> , hdl:10013/epic.42121 EPIC3Geophys. J. Int., (190), pp. 922-930 Article isiRev 2012 ftawi https://doi.org/10.1111/j.1365-246X.2012.05531.x 2024-06-24T04:07:26Z A mean dynamic ocean topography (MDT) has been computed using a high resolution GOCE (Gravity field and steady-state Ocean Circulation Explorer) gravity model and a new mean sea surface obtained from a combination of satellite altimetry covering the period 1992 October till 2010 April. The considered gravity model is GO-CONS-GCF-2-TIM-R3, which computes geoid using 12 months of GOCE gravity field data. The GOCE gravity data allow for more detailed and accurate estimates of MDT. This is illustrated in the Southern Ocean where the commission error is reduced from 20 to 5cm compared to the MDT computed using the GRACE gravity field model ITG-Grace2010. As a result of the more detailed and accurate MDT, the calculation of geostrophic velocities from the MDT is now possible with higher accuracy and spatial resolution, and the error estimate is about 7 cms−1 for the Southern Ocean. Article in Journal/Newspaper Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geophysical Journal International 190 2 922 930 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A mean dynamic ocean topography (MDT) has been computed using a high resolution GOCE (Gravity field and steady-state Ocean Circulation Explorer) gravity model and a new mean sea surface obtained from a combination of satellite altimetry covering the period 1992 October till 2010 April. The considered gravity model is GO-CONS-GCF-2-TIM-R3, which computes geoid using 12 months of GOCE gravity field data. The GOCE gravity data allow for more detailed and accurate estimates of MDT. This is illustrated in the Southern Ocean where the commission error is reduced from 20 to 5cm compared to the MDT computed using the GRACE gravity field model ITG-Grace2010. As a result of the more detailed and accurate MDT, the calculation of geostrophic velocities from the MDT is now possible with higher accuracy and spatial resolution, and the error estimate is about 7 cms−1 for the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Albertella, Alberta Savchenko, Roman Janjic Pfander, Tijana Rummel, Reiner Bosch, Wolfgang Schröter, Jens |
spellingShingle |
Albertella, Alberta Savchenko, Roman Janjic Pfander, Tijana Rummel, Reiner Bosch, Wolfgang Schröter, Jens High resolution dynamic ocean topography in the Southern Ocean from GOCE |
author_facet |
Albertella, Alberta Savchenko, Roman Janjic Pfander, Tijana Rummel, Reiner Bosch, Wolfgang Schröter, Jens |
author_sort |
Albertella, Alberta |
title |
High resolution dynamic ocean topography in the Southern Ocean from GOCE |
title_short |
High resolution dynamic ocean topography in the Southern Ocean from GOCE |
title_full |
High resolution dynamic ocean topography in the Southern Ocean from GOCE |
title_fullStr |
High resolution dynamic ocean topography in the Southern Ocean from GOCE |
title_full_unstemmed |
High resolution dynamic ocean topography in the Southern Ocean from GOCE |
title_sort |
high resolution dynamic ocean topography in the southern ocean from goce |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/33728/ https://epic.awi.de/id/eprint/33728/1/GJI2012final.pdf http://gji.oxfordjournals.org/content/190/2/922 https://hdl.handle.net/10013/epic.42121 https://hdl.handle.net/10013/epic.42121.d001 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
EPIC3Geophys. J. Int., (190), pp. 922-930 |
op_relation |
https://epic.awi.de/id/eprint/33728/1/GJI2012final.pdf https://hdl.handle.net/10013/epic.42121.d001 Albertella, A. , Savchenko, R. , Janjic Pfander, T. , Rummel, R. , Bosch, W. and Schröter, J. orcid:0000-0002-9240-5798 (2012) High resolution dynamic ocean topography in the Southern Ocean from GOCE , Geophys. J. Int., (190), pp. 922-930 . doi:10.1111/j.1365-246X.2012.05531.x <https://doi.org/10.1111/j.1365-246X.2012.05531.x> , hdl:10013/epic.42121 |
op_doi |
https://doi.org/10.1111/j.1365-246X.2012.05531.x |
container_title |
Geophysical Journal International |
container_volume |
190 |
container_issue |
2 |
container_start_page |
922 |
op_container_end_page |
930 |
_version_ |
1810480971468767232 |