ASAR surface velocity retrievals in the Northeast Atlantic

TitleASAR surface velocity retrievals in the Northeast Atlantic
Publication TypeConference Proceedings
Year of Publication2010
AuthorsHansen, MW, Dagestad, K-F, Johannessen, J, Mouche, A, Collard, F
Refereed DesignationUnknown
Conference NameESA Living Planet Symposium
Conference Location and DateBergen, June 28 - July 2, 2010
KeywordsASAR, Northeast Atlantic, Ocean surface velocity
Abstract

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
Author Address

NERSC

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