1 / 51

Dawn Wright and Emily Larkin Davey Jones Locker Lab Department of Geosciences

Join us for a workshop on GIS and Benthic Terrain Analysis, organized by Dawn Wright and Emily Larkin from Oregon State University. Learn about seafloor mapping techniques, benthic classifications, spatial analysis, and more!

lanitar
Download Presentation

Dawn Wright and Emily Larkin Davey Jones Locker Lab Department of Geosciences

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GIS Benthic Terrain Workshop Dawn Wright and Emily Larkin Davey Jones Locker Lab Department of Geosciences Oregon State University, USA

  2. Schedule - Day 1, Mon • 8:30-9:30 - Dawn - Intro • 9:30-10:00 – Break - Technical Setup • 10:00-12:00 – Emily/Dawn - Module 1:Exploring the Reefs • all modules include intro lecture, then hands-on work • 12:00-1:00 – Lunch • 1:30-2:30 – Dawn – Seafloor mapping techniques and GIS analysis • 2:30-4:30 – Emily/Dawn – Module 2:Benthic Classifications

  3. Schedule - Day 2, Tues • 8:30-10:30 – Emily/Dawn – Module 3: Spatial and 3D Analyst w/Bathymetry Data (including hypothetical MPA) • 10:30-11:00 – Dawn – Benthic Terrain Modeler (BTM) tool • 11:00-12:00 – Emily – American Samoa Benthic Terrain Viewer (ASBTV) and AS Bibliographic Tool • 12:00-1:00 – Lunch • 1:30 –2:00 – Wrapup, final question/discussion period

  4. Tuesday, 2:30 • American Samoa GIS User Group Meeting • DOC Conference Room, Pago Pago

  5. GIS: A Spatial ContextIntegrating Many Parts to See the Whole Shoreline Bathymetry Sediments Kelp Conservation Value Resilience? Fisheries Non-consumptive Recreational Activities Options/Decisions Graphics courtesy of Joe Breman, ESRI and NOAA Biogeography Program

  6. Spatial Reasoning Deciding Measuring Planning Thinking Analyzing Science Graphics courtesy of ESRI

  7. From Spatial Reasoning to Policy & Management Halpin, AAAS, 2004 From Wright and Halpin, in press, 2004, Spatial reasoning for terra incognita: Grand challenges and progress of marine GIS,in Wright, D.J. and Scholz, D.J. (eds.), Place Matters: Geospatial Tools for Marine Science, Conservation, and Management in the Pacific Northwest, Corvallis, OR: Oregon State University Press.

  8. GIS: A Spatial ContextSeeing the Whole to Manage Places Seeing the Whole Managing Places • Estuaries • Fisheries • Marine Protected Areas • Coastal Communities • Patterns • Linkages • Trends Graphics courtesy of ESRI

  9. Point Conception Santa Barbara From Airame, S., in press, 2004, Channel Islands Marine Sanctuary: Advancing the science and policy of marine protected areas, in Wright, D.J. and Scholz, D.J. (eds.), Place Matters: Geospatial Tools for Marine Science, Conservation, and Management in the Pacific Northwest, Corvallis, OR: Oregon State University Press. Oregonian Bioregion Area of Detail Sanctuary Boundary Californian Bioregion State Boundary Santa Cruz Island San Miguel I. Anacapa I. Santa Rosa Island Santa Barbara Island Transition Zone Effective April 9, 2003

  10. Survey Station Database Survey Catch Database Oceanographic Database Remote Sensing Data Station data Catch data Ocean Current data SeaWiFS Satellite Imagery of Chlorophyll One to Many Table Join Juvenile Length Analysis Catch & Station Data Drift Buoy Analysis BiodiversityAnalysis 1°Production Raster Calculator Analysis Maturity Analysis Source & Sink Areas Nursery Areas Stations with Fish Biodiversity Index (Shannon-Weaver) Spawning Aggregation Spatial Analyst (Kriging) Spatial Analyst (Kriging) Spatial Analyst (Kriging) Spatial Analyst (Kriging) High 1° Production Raster Source/Sink Raster Nursery Raster Spawning Raster Biodiversity Raster Important Biological Areas Raster Weighted model Continued Flowchart of Parameters in Potential MPA GIS By OrSt grad student Chad Keith

  11. Commercial Database Biological Layer Commercial Catch data Important Biological Areas Raster Commercial Effort & Revenue Analysis Commercial Port & Fleet Capacity Analysis Important Commercial Fishing Areas (no MPA’s) Fleet Capacity Areas (no MPA’s) Potential MPA’s Raster Calculator Analysis Spatial Overlay (Union) Raster Calculator Analysis No MPA Raster Economic Layer Flowchart of Parameters in Potential MPA GIS By OrSt grad student Chad Keith

  12. Gulf of MaineGeorges BankExample of MPA Exclusion Areas 75 km 50 km By OrSt grad student Chad Keith

  13. Fishing Patterns 1998-’99 Pre-Footrope Regulation Tows 1998-1999 Reference Site 2 Trawl Patterns – Rocky Habitat By OrSt grad student Marlene Bellman

  14. Fishing Patterns, 2000-’01 Post-Footrope Regulation Trawl Patterns – Rocky Habitat Where is Habitat Recovery Most Likely? Map Prediction of Resilience/Robustness?? By OrSt grad student Marlene Bellman

  15. Prototype Mixed Layer Depth Calculation in ArcGIS - Bering Sea Vance et al., NOAA AFSC, 2004

  16. Map courtesy of the National Park of American Samoa Artwork by Jayne Doucette, Woods Hole Oceanographic Institution

  17. OrSt and USF Bathy Surveys, 2001 to present

  18. Bottom Coverage & Data Density by Survey Method Leadline Single Beam Multibeam 1-2 K soundings per survey 500 - 750 K soundings per survey 400,000 – 1,000,000 K soundings per survey Image courtesy of NOAA & UNH

  19. Active Remote SensingAcoustic! • multiple, focused, high-frequency, short wavelength sound beams • “narrow-beam” or “multibeam” bathymetry • sound beam stays narrow and focused all the way to the bottom • depths much more precise • e.g., Sea Beam has 16 beams, Sea Beam 2000 has 121, EM3000 has 127, EM120 has 191

  20. Mapping the Ocean Floor • Only 5% of global ocean floor charted in high rez with ships - we need 125 more years! Image courtesy of NOAA

  21. Ocean Thematic Layers Graphic courtesy of Christina Massel, Steve Miller, Scripps

  22. Multibeam Bathymetry A Gigabyte of data an hour A Gigabyte of data a day

  23. The World Ocean Floor

  24. N

  25. Fine-Scale Mapping • on the order of tens of meters to meters • features the size of a beer can!

  26. National Marine Sanctuaries Map courtesy of NOAA National Marine Sanctuary System

  27. U.S. Coral Reef Task Force Seeks to characterize priority reef systems deeper than 30 m in the U.S. and Trust Territories by 2009. Surveys contribute to management of marine protected areas and the possible designation of more protected areas. Evans et al. 2002;http://www.nodc.noaa.gov/col/projects/coral/Coralhome.html

  28. OrSt & USFMultibeam Surveys to date By OrSt grad student Emily Lundblad

  29. Shallow Multibeam(May 2001, November 2002) • Kongsberg-Simrad EM-3000 • Fans out 121 beams at 130 deg. • Swaths 3-4 times water depth • Depths in 3-150 m range at survey speeds of 3-12 knots • cm-resolution w/ dGPS

  30. Preparations

  31. Shallow Water Multibeam

  32. Shallow Water Multibeam (cont.)

  33. Measured offsets required for accurate pitch, roll, yaw

  34. "curling up" of outermost beams"loss of bottom" on very steep slopessudden heading changes

  35. By OrSt grad student Emily Larkin

  36. Fagatele Bay National Marine Sanctuary, 2001 bathy

  37. SCUBA / Rebreather Technology Images courtesy of Kip Evans, Nat. Geographic and Rich Pyle, Bishop Museum

  38. Rebreather Dive Mission, FBNMS, 2001

  39. Schedule - Day 1 • 8:30-9:30 - Dawn - intro lecture • 9:30-10:00 – Break • 10:00-12:00 – Emily/Dawn - Module 1: Exploring the Reefs • all modules include intro lecture, then hands-on work • 12:00-1:00 – Lunch • 1:30-2:30 – Dawn – seafloor mapping techniques and GIS analysis • 2:30-4:30 – Emily/Dawn – Module 2: Benthic Classifications

  40. Fa’afetai! Image courtesy of FBNMS

More Related