1. U. Victoria Regional Oceanography Affecting the NEPTUNE Array Ken Denman School of Earth and Ocean Sciences & Ocean Networks Canada University of Victoria, BC, Canada Email: denmank@uvic.ca INDEEP 24 April 141

2. Winter/Summer Atmospheric Surface Pressure Patterns http://unimak.us/climate.shtml INDEEP 24 April 14 2

3. Large Scale Surface Currents INDEEP 24 April 14 3 www.earthtimes.org Summer Winter

4. INDEEP 24 April 144 Annual average surface NO 3 concentrations (mmoles-N m -3 ) from the World Ocean Atlas From: Denman and Peña, 2000. In: The Changing Ocean Carbon Cycle, CUP.

5. Mean SeaWiFS Surface Chlorophyll 1997-2010 INDEEP 24 April 145 http://oceancolor.gsfc.nasa.gov/

6. Oxygen on WOCE Line P01 at 48°N INDEEP 24 April 14 6 http://www.ewoce.org/

7. Silica on WOCE Line P01 at 48°N INDEEP 24 April 14 7

8. Northward Flowing California Undercurrent Over the slope 200 - ~800 m Core around 400 m ‘Old’ water - low O 2, low pH - high DIC, high dissolved nutrients Upwells in submarine canyons onto shelf during strong summer upwelling INDEEP 24 April 14 8 Krassovski, 2008. MSc Thesis University of Victoria

9. Arrows indicate direction of the wind and strength. Shaded ocean areas indicate high wind speed. Seasonal Wind Stress – Vanc. Is. to Baja INDEEP 24 April 149 Huyer, A., 1983. Coastal upwelling in the California Current system, Prog. Oceanogr., 12:259-284.

10. Victoria Red indicates high chlorophyll concentrations on this colour scale Upper Water Chlorophyll Concentrations from Satellite Images INDEEP 24 April 1410

11. °C Weakening El Niño La Niña Strong El Niño Sea Surface Temperature Anomalies (°C) INDEEP 24 April 14 11 March 1998 March 2012 a b c e f http://www.esrl.noaa.gov/psd/about/ October 2013 g

12. Multiple Stressors: Decreasing  arag & O 2 Dissolved Oxygen at 125 m, south of La Pérouse Bank in water 143 m deep. Depth  arag = 1 Feely et al. 2008. Science 320: 1490-1492 From: Crawford and Peña, 2013 Atmosphere-Ocean, DOI:10.1080/07055900.2012.753028. INDEEP 24 April 14 12

13. Thanks denmank@uvic.ca INDEEP 24 April 1413