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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.

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mare liberum local issues with global implications
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?

nutrients light phytoplankton
NUTRIENTS + LIGHT= PHYTOPLANKTON

Honolulu

Seawater

Air

Conditioning

Project

slide4

NUTRIENTS + LIGHT= PHYTOPLANKTON

Ocean Thermal Energy Conversion (OTEC)

Project

case study enhanced upwelling and carbon sequestration
CASE STUDY:Enhanced upwelling and carbon sequestration
  • Site is critical – nutrient flux
  • Community succession is key
  • C-N-P stoichiometry is key
slide8

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

slide13

“Wisdom is knowing what to do next; virtue is doing it”

David Starr Jordan

(1851-1931)

CONTEMPORARY RESEARCH THEMES

slide14

SWAC and OTEC

Heat exchange medium in air conditioning or energy production applications

CO2-rich, N&P-rich waste

Cold

DSW

a c redfield 1958 the inadequacy of experiments in marine biology
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!

slide16

EXPERIMENTAL TERRESTRIAL PLOTS

Why can’t it be done in the sea?

slide18

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

slide20

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

slide21

OPPEX: Pump Deployment, R/V Kilo Moana

31 May 2008

Elapsed time = 16 min

slide23

BAG-I

(Biogeochemistry And Genomes)

  • Inaugural deployment
  • Nutrient loading exp. (Karl-Letelier hypothesis)
  • C-MORE/BEACH-MMI collaboration

Dec 2011

slide24

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

earth free institute c more workshop 28 29 nov 2011
EARTH FREE INSTITUTEC-MORE Workshop28-29 Nov 2011

“Enhanced Upwelling:

Science and Opportunities”

Stay tuned for progress

sea orbiter
SEA ORBITER

The future

is today!

Coming soon

to Honolulu…