1 / 27

MARE LIBERUM : LOCAL ISSUES WITH GLOBAL IMPLICATIONS

MARE LIBERUM : LOCAL ISSUES WITH GLOBAL IMPLICATIONS. Honolulu Seawater Air Conditioning – use deep, cold (nutrient- and CO 2 -rich) seawater in lieu of heat pumps Ocean Thermal Energy Conversion (OTEC) – use deep, cold (nutrient- and CO 2 -rich) seawater to generate electricity.

yen
Download Presentation

MARE LIBERUM : LOCAL ISSUES WITH GLOBAL IMPLICATIONS

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. MARE LIBERUM: LOCAL ISSUES WITH GLOBAL IMPLICATIONS Honolulu Seawater Air Conditioning – use deep, cold (nutrient- and CO2-rich) seawater in lieu of heat pumps Ocean Thermal Energy Conversion (OTEC) – use deep, cold (nutrient- and CO2-rich) seawater to generate electricity Green solutions  “green” ocean?

  2. NUTRIENTS + LIGHT= PHYTOPLANKTON Honolulu Seawater Air Conditioning Project

  3. NUTRIENTS + LIGHT= PHYTOPLANKTON Ocean Thermal Energy Conversion (OTEC) Project

  4. CASE STUDY:Enhanced upwelling and carbon sequestration • Site is critical – nutrient flux • Community succession is key • C-N-P stoichiometry is key

  5. J. E. Lovelock and C. G. Rapley (2007)

  6. Immediate retort from the science community… essentially “What are you smoking in those pipes?” The issue has to do with the CNP ratio of upwelled water relative to particle export Nothing’s as fundamental as elemental!! J. Shepherd et al. 2007

  7. A small-scale field test of the “nutrient loading” hypothesis Karin Björkman, today!

  8. Karl 2007

  9. “Wisdom is knowing what to do next; virtue is doing it” David Starr Jordan (1851-1931) CONTEMPORARY RESEARCH THEMES

  10. SWAC and OTEC Heat exchange medium in air conditioning or energy production applications CO2-rich, N&P-rich waste Cold DSW

  11. A.C. REDFIELD (1958) “The inadequacy of experiments in marine biology” • Ecosystem manipulation/perturbation experiments are essential • Complex systems must be thoroughly described and well understood before relevant experiments can be conducted C:N:P We may now be ready to move!

  12. EXPERIMENTAL TERRESTRIAL PLOTS Why can’t it be done in the sea?

  13. HOW IS PRODUCTIVITY ENHANCED IN THE OCEAN GYRES?

  14. STA. ALOHA UPWELLING HYPOTHESIS N2/CO2 STEP 3 STEP 2 STEP 1 Non-Redfield “echo” bloom and export Selects for photo-trophic N2 fixing microbes “Redfield” bloom and export with residual DIC and P Water from ~300 m DIC:P = 150 N:P < 16 106C:16N:1P 325C:50N:1P

  15. Ocean Productivity Perturbation Experiment (OPPEX) 30 May – 1 June 2008 • OPPEX Objectives: • to verify the structural integrity and assess the performance of commercially available (Atmocean, Inc.) wave pumps • to develop a monitoring and sampling strategy appropriate for tracking the pumps and the upwelled water for the duration of a deployment in waters north of the Hawaiian islands and • to study the biological response of the system. Dissolved Oxygen Chlorophyll Baseline Conditions Temperature

  16. OPPEX: Pump Deployment, R/V Kilo Moana 31 May 2008 Elapsed time = 16 min

  17. K. Lee / BEACH collaboration

  18. BAG-I (Biogeochemistry And Genomes) • Inaugural deployment • Nutrient loading exp. (Karl-Letelier hypothesis) • C-MORE/BEACH-MMI collaboration Dec 2011

  19. NSF-SEES: proposal Nov 2011 Karl selected inaugural Kyo-Ya Fellow of “sustainable coastal tourism” SOEST-led UH sustainability initiative cluster hire: 5 new faculty coming soon

  20. EARTH FREE INSTITUTEC-MORE Workshop28-29 Nov 2011 “Enhanced Upwelling: Science and Opportunities” Stay tuned for progress

  21. SEA ORBITER The future is today! Coming soon to Honolulu…

More Related