ASAR surface velocity retrievals in the Northeast Atlantic

TittelASAR surface velocity retrievals in the Northeast Atlantic
PublikasjonstypeConference Proceedings
Utgivelseår2010
ForfattereHansen, MW, Dagestad, K-F, Johannessen, J, Mouche, A, Collard, F
Refereed DesignationUnknown
KonferansenavnESA Living Planet Symposium
Conference Location and DateBergen, June 28 - July 2, 2010
NøkkelordASAR, Northeast Atlantic, Ocean surface velocity
Sammendrag

Chapron et al. (2005), Collard et al. (2008), and Johannessen et al. (2008) have demonstrated that the Doppler centroid anomaly of SAR signals is related to the line-of-sight veloc- ity of the moving ocean surface. In this study, the Doppler technique is applied to studies of the main current regimes in Norwegian waters including the Norwegian Coastal Current (NCC) and the Norwegian Atlantic Current (NwAC). Re- sults are in consistence with the large scale circulation pat- tern of the area, and qualitatively compares well with Mean Dynamic Topography (MDT), and drifter deduced and mod- elled climatologies. In summary, the mean range Doppler surface velocity map depict clear signals of the major cur- rents in the North Sea and Norwegian Sea with magnitudes ranging from 20 to 50 cm/s.

URLhttp://www.esa.int/SPECIALS/Living_Planet_Symposium_2010/index.html
Forfatterens adresse

NERSC

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ASAR SURFACE VELOCITY RETRIEVALS IN THE NORTHEAST ATLANTIC.pdf1.93 MB