Ocean Science
Ocean Science
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Articles | Volume 12, issue 3
Articles | Volume 12, issue 3
https://doi.org/10.5194/os-12-825-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/os-12-825-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 12, issue 3
Research article
 | 
27 Jun 2016
Research article |  | 27 Jun 2016

Major improvement of altimetry sea level estimations using pressure-derived corrections based on ERA-Interim atmospheric reanalysis

Loren Carrere, Yannice Faugère, and Michaël Ablain

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Cited articles

Ablain, M., Cazenave, A., Valladeau, G., and Guinehut, S.: A new assessment of the error budget of global mean sea level rate estimated by satellite altimetry over 1993–2008, Ocean Sci., 5, 193–201, https://doi.org/10.5194/os-5-193-2009, 2009.
Ablain, M., Cazenave, A., Larnicol, G., Balmaseda, M., Cipollini, P., Faugère, Y., Fernandes, M. J., Henry, O., Johannessen, J. A., Knudsen, P., Andersen, O., Legeais, J., Meyssignac, B., Picot, N., Roca, M., Rudenko, S., Scharffenberg, M. G., Stammer, D., Timms, G., and Benveniste, J.: Improved sea level record over the satellite altimetry era (1993–2010) from the Climate Change Initiative project, Ocean Sci., 11, 67–82, https://doi.org/10.5194/os-11-67-2015, 2015.
AVISO: OSTM/Jason-2 products handbook, SALP-MU-M-OP-15815-CN, Edn. 1.8, http://www.aviso.oceanobs.com/fileadmin/documents/data/tools/hdbk_j2.pdf (last access: 13 May 2015), 2011.
Carrere, L.: Etude et modélisation de la réponse haute fréquence de l'océan global aux forçages météorologiques, Toulouse, université Toulouse III – Paul Sabatier, 2003.
Carrere, L.: Rapport d'étude CNES/CLS, reference CLS-DOS-NT-05-007, 2005.
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Short summary
New dynamic atmospheric (DAC_ERA) and dry tropospheric (DT_ERA) correction have been computed for the altimeter period using the ERA-Interim meteorological reanalysis. The corrections improve sea level estimations in Southern Ocean and in shallow waters; the impact is the most important for the first decade of altimetry, when operational meteorological models had a weaker quality. DT_ERA remains better in the recent period. New corrections significantly impact long-term regional trends.
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