1. Boundary Layer Velocity Structure in a Coldwater Coral Area of Haddock Channel, Southwest Grand Banks William Fowler MSc. Candidate Environmental Science Memorial University of Newfoundland

2. Large Gorgonian Distribution Coldwater Coral off Newfoundland and Labrador, WWF 2007

3. Characterization of Local Current Regime Corals occurring on the bottom in deep water are located in the benthic boundary layer Layer extends above seafloor anywhere from 5-20 meters Dr. Len Zedel / Dr. Evan Edinger, ROPOS 2007

4. Boundary Layers Idealized boundary layer Bottom drag, sea floor roughness important factor NASA 2008

5. Methods ROPOS/Hudson 2007 Cruise Survey of deepwater coral Multiple sites along slope of continental shelf 2008 Dr. Evan Edinger

6. ADCP

7. Profiler 1: Area without Coral Dr. Len Zedel / Dr. Evan Edinger, ROPOS 2007

8. Current Profiler 2: Coral Thicket Dr. Len Zedel / Dr. Evan Edinger, ROPOS 2007

9. Deployment Parameters Depth 700 meters 1 profile every 30 seconds Uncertainty in velocity time series ~ 0.5 cm/s Profiling over 4 meters 1 meter cell size

10. Location of ADCP in Coral Thicket (site 2)

11. ROPOS Transact and location of coral

12. Mean normalized velocity profile

13. Comparison of Site 1 and 2

14. Directional Velocity Profile: Inst. 1

15. Coral Thicket varies relative to site 1

16. Directional Velocity Profile w/ time series

17. Directional subplots Inst. 1 shown (use inst. 2 plots in presentation)