SVINØY SECTIONSVINØY SECTIONA full-scale ocean climate laboratory in the A full-scale ocean climate laboratory in the Norwegian Atlantic CurrentNorwegian Atlantic Current
Warming of the Atlantic Inflow to the Norwegian Sea toward Arctic; 1995-2005 by
Kjell Arild Orvik and Øystein SkagsethGeophysical Inst., University of Bergen, and Marine Research Inst., Bergen
Outline- What causes the extreme warming- Connect it to dynamical processes in the North Atlantic- Strength of the Sub-Polar Gyre and interaction of water masses- Moored temp/current measurements the in Svinøy Section- Sea Surface High (SSH) observations from satellite altimeter- Empirical Orthogonal functions (EOF) methodology
Major Pathways of Atlantic Water and extension of Atlantic Water inNorth Atlantic &Norwegin Sea, from SVP-drifters
Orvik & Niiler, GRL 2002
Vertically integrated transport of Atlantic InflowOrvik, Skagseth & Mork, DSR 2001Orvik & Skagseth, CSR 2003
Temperature,Velocity & Heat-flux variations in the core of the AI
Orvik & Skagseth, GRL 2005
Timeseries of vT variationsConnected to variarions inV and TOrvik & Skagseth,GRL 2005
EOF-mode 2: 13.4 % of Variance
Hakkinen & Rhines, 2004
Sea Surface High (SSH) fromTOPEX/Poseidon altimeter.1/3 deg resolution1-year mv-filter
Time series of v and T in Svinøy Section updated to 2006 have been removed from thepresentation, contact the author if you need further details
CONCLUSION
The warming of the Atlantic Inflow to the Norwegian Sea toward the Arctic Ocean 1995-2005 appears to be determined by the dynamic processes in the North Atlantic
EOF-mode 1: 43.9 % of Variance
Hakkinen & Rhines, 2004
Sea Surface High (SSH) fromTOPEX/Poseidon altimeter.1/3 deg resolution1-year mv-filter