| Registro completo |
| Provedor de dados: |
ArchiMer
|
| País: |
France
|
| Título: |
Improved description of the ocean mesoscale variability by combining four satellite altimeters - art. no. L02611
|
| Autores: |
Pascual, Ananda
Faugere, Yannice
Larnicol, Gilles
Le Traon, Pierre-yves
|
| Data: |
2006
|
| Ano: |
2006
|
| Palavras-chave: |
Satellite altimeters
Mesoscale variability
Global ocean
|
| Resumo: |
Data from four satellite altimeters are combined with the aim of improving the representation of the mesoscale variability in the Global Ocean. All missions [Jason-1, ERS-2/ENVISAT, Topex/Poseidon interleaved with Jason-1 and Geosat Follow-On] are cross-calibrated previously to produce weekly gridded maps. In areas of intense variability, the rms differences between a classical configuration of two altimeters and the scenario merging four missions can reach 10 cm and 400 cm(2)/s(2) in SLA and EKE, respectively, which represents an important percentage of the signal variance. A comparison with surface drifters shows that the four altimeter scenario improves the recovery of mesoscale structures that were not properly sampled with Jason(-1) + ERS-2/ENVISAT. Finally, the consistency between altimetric and tide gauge data is improved by about 25% when coastal sea level is estimated with 4 satellites compared to the results obtained with 2 altimeters.
|
| Tipo: |
Text
|
| Idioma: |
Inglês
|
| Identificador: |
http://archimer.ifremer.fr/doc/2006/publication-1038.pdf
DOI:10.1029/2005GL024633
|
| Editor: |
AGU
|
| Relação: |
http://archimer.ifremer.fr/doc/00000/1038/
|
| Formato: |
application/pdf
|
| Fonte: |
Geophysical Research Letters (0094-8276) (AGU), 2006 , Vol. 33 , N. 2 , P. NIL_13-NIL_16
|
| Direitos: |
2006 by the American Geophysical Union
|
|
