1. Institute of Oceanology PAS In the Arctic Jan Piechura Arctic GOOS Planning Meeting NERSC, Bergen 12-13 Sep. 2006

2. IOPAS STATIONS GRID ArcticGOOS, Bergen, 2006 Measurements At High Seas and Shelf: Standard meteo, aerosols CTD, ADCP (VMADCP and LADCP) Solar radiation, light day attenuation Organic carbon, organic matter Primary production Plankton: phyto, zoo Birds count At Svalbard Fiords (additionaly): High resolution CTD and ADCP Suspended matter sedimentation Plankton: phyto, zoo, bentos Gas bubbles in the water

3. IO PAS STATIONS PLANNED IN DAMOCLES ArcticGOOS, Bergen, 2006

4. June- July 2005 ADCP measured currents at 100 m. Geostrophic currents Geostrophic flow Kinetic Energy (color scale) Two KE maxima (core, western branch); Convergence of two streams at ~78º N; Recirculation at ~78º and ~79º Large anticyclonic eddy at ~73º 30’ Meandering of the western branch SOME RESULTS ArcticGOOS, Bergen, 2006

5. TWO AW TRANSPORT MAXIMA (CORE, WESTERN BRANCH); SOUTHWARD FLOW REGION BETWEEN BRANCHES; CONVERGENCE OF TWO STREAMS AT ~78º N; DIVERGENCE OF STREAMS AT ~79º N; THE EASTERN BRANCH (CORE OF WSC) INFLOWS INTO THE ARCTIC OCEAN, THE WESTERN ONE MOSTLY RECIRCULATES EXAMPLE: PATHWAYS OF ATLANTIC WATER - STRUCTURE VERTICALLY INTEGRATED TRANSPORTS OF ATLANTIC WATER ACROSS SECTIONS Summer 2005 ArcticGOOS, Bergen, 2006

6. EXAMPLE : PROPERTIES OF ATLANTIC WATER - VARIABILITY AW LAYER HEATR CONTENT AND BAROCLINIC CURRENTS ANOMALIES FROM MEAN 2000-2005 2003 NEGATIVE AW HEAT CONTENT ANOMALY 2004 – HIGHER HEAT CONTENT 2005 THE HIGHEST HEAT CONTENT, LARGE HEAT ANOMALIES CARRIED BY THE MESOSCALE EDDIES IN THE WESTERN BRANCH POSITIVE HEAT ANOMALIES CARRIED BY THE ANICYCLONIC EDDIES ArcticGOOS, Bergen, 2006

7. 200120022003 200420052006 EXAMPLE : TEMPERATURE AT 100m DEPTH

8. Variability of mean temperature, salinity and heat transport of Atlantic Water at Latitude 76o30'N ArcticGOOS, Bergen, 2006