1. Ocean > English Channel > North Sea What the Portsmouth-Bilbao FerryBox is telling us David Hydes EMECO-NOOS Workshop Lowestoft June 2009

2. P & O Pride of Bilbao ferry route and details Measurements Online “Web sensors” @ 1Hz Conductivity Temperature Chlorophyll-fluorescence @30secs O2 (start 2005) pCO2 (mid 2005) Monthly water samples From Feb 2003 NO3, Si, PO4, Chl a, Plankton Salinity,O2, Alkalinity, TCO2, HPLC See http://www.noc.soton.ac.uk/ops/ ferrybox_index.php ~35 hrs ~1000 km Every 3 days Ushant Project start: April 2002 Bay of Biscay E1 Shelf Break

3. Bilbao to Portsmouth mapped gridded data: mean of the data in each grid box 2005 to 2007 MiniPack CTD-F Sea Water Salinity

4. Bilbao to Portsmouth mapped gridded data 2005 to 2007 MiniPack CTD-F Sea Water Salinity

5. Inter-annual variation winter maximum nitrate 2004 and 2005 Along track data Bilbao-Portsmouth

6. Portsmouth Bilbao Off shelf data winter 2003-4 and 2004-5

7. L4 and E1 Positions of the stations: L4: 50° 15.00' N, 4° 13.02‘ W E1: 50° 02.00' N, 4° 22.00‘ W

9. 1960s P tends to be lower but also higher salinity

10. 2006 data matches data from 1960s lower phosphate and higher salinity

11. Comparison of in-situ data and POLCOMS ERSEM MetOffice model runs modelobservations