An ocean data assimilation system and reanalysis of the World Ocean hydrophysical fields
- Autores: Zelenko A.1, Vil’fand R.1, Resnyanskii Y.1, Strukov B.1, Tsyrulnikov M.1, Svirenko P.1
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Afiliações:
- Hydrometeorological Research Centre of the Russian Federation
- Edição: Volume 52, Nº 4 (2016)
- Páginas: 443-454
- Seção: Article
- URL: https://journals.rcsi.science/0001-4338/article/view/148452
- DOI: https://doi.org/10.1134/S0001433816040149
- ID: 148452
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Resumo
A new version of the ocean data assimilation system (ODAS) developed at the Hydrometcentre of Russia is presented. The assimilation is performed following the sequential scheme analysis–forecast–analysis. The main components of the ODAS are procedures for operational observation data processing, a variational analysis scheme, and an ocean general circulation model used to estimate the first guess fields involved in the analysis. In situ observations of temperature and salinity in the upper 1400-m ocean layer obtained from various observational platforms are used as input data. In the new ODAS version, the horizontal resolution of the assimilating model and of the output products is increased, the previous 2D-Var analysis scheme is replaced by a more general 3D-Var scheme, and a more flexible incremental analysis updating procedure is introduced to correct the model calculations. A reanalysis of the main World Ocean hydrophysical fields over the 2005–2015 period has been performed using the updated ODAS. The reanalysis results are compared with data from independent sources.
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Sobre autores
A. Zelenko
Hydrometeorological Research Centre of the Russian Federation
Autor responsável pela correspondência
Email: zelenko@mecom.ru
Rússia, Bolshoi Predtechensky per. 11-13, Moscow, 123242
R. Vil’fand
Hydrometeorological Research Centre of the Russian Federation
Email: zelenko@mecom.ru
Rússia, Bolshoi Predtechensky per. 11-13, Moscow, 123242
Yu. Resnyanskii
Hydrometeorological Research Centre of the Russian Federation
Email: zelenko@mecom.ru
Rússia, Bolshoi Predtechensky per. 11-13, Moscow, 123242
B. Strukov
Hydrometeorological Research Centre of the Russian Federation
Email: zelenko@mecom.ru
Rússia, Bolshoi Predtechensky per. 11-13, Moscow, 123242
M. Tsyrulnikov
Hydrometeorological Research Centre of the Russian Federation
Email: zelenko@mecom.ru
Rússia, Bolshoi Predtechensky per. 11-13, Moscow, 123242
P. Svirenko
Hydrometeorological Research Centre of the Russian Federation
Email: zelenko@mecom.ru
Rússia, Bolshoi Predtechensky per. 11-13, Moscow, 123242