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BIOINFORMATIC MAPPING OF OCEAN BIOGEOCHEMICAL PROVINCES

BIOINFORMATIC MAPPING OF OCEAN BIOGEOCHEMICAL PROVINCES. Matthew Oliver (U. Del.) Oscar Schofield (Rutgers) Andrew Irwin (Mt. Allison University) Paul Falkowski (Rutgers). Static, manual provinces. Longhurst (1995, 1998, 2006). Questions. Can We Make Dynamic Provinces (space-time variant)?

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BIOINFORMATIC MAPPING OF OCEAN BIOGEOCHEMICAL PROVINCES

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  1. BIOINFORMATIC MAPPING OF OCEAN BIOGEOCHEMICAL PROVINCES Matthew Oliver (U. Del.) Oscar Schofield (Rutgers) Andrew Irwin (Mt. Allison University) Paul Falkowski (Rutgers)

  2. Static, manual provinces Longhurst (1995, 1998, 2006)

  3. Questions • Can We Make Dynamic Provinces (space-time variant)? • Why? • Biome boundaries are predictive of hydrography • Changes in biome size and distributions are bellwethers for cyclical and secular earth cycles • True comparative analysis by controlling for advection (ie making provinces a quantitative measurement)

  4. Automatic unsupervised classification Oliver et al (2004) JGR Oceans SeaWiFSMODIS/AquaAVHRR SST

  5. 2006 Annual mean

  6. Maps are quite similarAre they real?

  7. Time Series

  8. ENSO indexes Province areas (sum of 3) 2003 Jan 2006 Dec

  9. Jan 2006 Gyre area Jan 1998 To Dec 2006

  10. Jan 2006 Gyre area Jan 1998 To Dec 2006

  11. Combined Global Gyres Total C fixation (g / d) Trend Combined Tropical Seas Jan 1998 Dec 2006

  12. Informational Content in MODIS and Sea-WiFS/AVHRR are highly similar

  13. Where are we? Have a verified method to make dynamic and quantitative maps Automatic Biomes reflect expert knowledge Biomes are change in response to well known global processes Biomes are being used to find cyclical and secular change in the ocean environment Comparative analysis of primary production in provinces

  14. Where are we going? • Iron Dust Impacts? • Linking MODIS and Sea-WiFS/AVHRR records together • Biomes/Water Masses as Fisheries Indicators • Adding 3-D Structures to Biomes

  15. Iron Limited Nitrogen Limited 0% 1% 2% 3% 4% 5% -2 -1 0 1 2 φsat-NPQ Nutrient Stress Index

  16. Iron Limited Nitrogen Limited 0% 1% 2% 3% 4% 5% -2 -1 0 1 2 φsat-NPQ Nutrient Stress Index

  17. Where are we going? • Iron Dust Impacts? • Linking MODIS and Sea-WiFS/AVHRR records together • Biomes/Water Masses as Fisheries Indicators • Adding 3-D Structures to Biomes

  18. NMFS Fish Stock Indicators

  19. Where are we going? • Iron Dust Impacts? • Linking MODIS and Sea-WiFS/AVHRR records together • Biomes/Water Masses as Fisheries Indicators • Adding 3-D Structures to Biomes

  20. argo

  21. Contact Us Andrew Irwin: airwin@mta.ca Poster 227 Matt Oliver: moliver@udel.edu Poster 218 Oliver et al (2004) JGR Oceans

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