HomeMy WebLinkAboutPPP Item 9 Part 2 EMERGING ISSUE :
ARE ANTHROPOGENic NUTRIENTS IMPORTANT IN
AN UPWELLING DOMINATED REGION ?
Two Opposing Views:
California coastal ,
waters are dominated
by upwelling, therefore
anthropogenic nutrients
are not a primary
driver
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- - Local anthropogenic inputs can
exacerbate global drivers,
potentially pushing DO and pH to
ecological tipping-points
OCSD Diversion : A unique opportunity to
investigate an emerging issue
• In situ field experiment not normally allowed
• Comparison of conditions:
• Offshore pipe turned off, then back on
• Nearshore pipe turned on , then off
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OCSD Brought Together A
Community of Researchers
Modelers, Chemical Oceanographers, Physical Oceanographers,
Biological Oceanographers, Roboticists, Computer scientists
S C R I P P S I N S T I T U T 1 0 N O F
OCEANOGRAPHY
` GLOBAL DISCOVERIES FOR (O M O,t O W'S WORLD
Scripps Institution
......... of Oceanography Jet Propulsion Laboratory
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University of --R California Inst. of Technology
Southern California
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UCLA
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University of California "" _
at Los Angeles University of California
g at Santa Barbara
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M B A B I
Stanford University of California
University at Santa Cruz Southern California Coastal Moss Landing Monterey Bay Aquarium
Water Research Project Marine Labs Research Institute
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Autonomous Underwater Vehicles :
Surface Wave Glider
(plume tracking & phytoplankton response)
FPP
' - . .
Multiple Types of Moorings
00O.'s-.100 s
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Environmental Sample
Processor
(water chemistry, HAB
species and toxins)
Wirewalker Water Quality Moorings
(Vertical profiles water and Current Buoys
chemistry) (water chemistry and
currents)
Ship Surveys
Microscopy and imaging (plankton composition)
Experiments
Response of phytoplankton and bacteria -
Rates of nitrogen uptake '
Changes in nitrogen form _!ek— W
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Nearshore: 3N
3S
• Beaches were unimpacted 6s
• Algal bloom did not materialize
2 29S
"S
Offshore:
• Nitrogen inputs effect biological communities
• We think this is a local effect
0 Focus of future research
Outcomes from the OCSD Diversion
• Special journal issue on the diversion
• Estuarine Coastal and Shelf Science
ESTUARINE
• Findings are driving SCCWRP research COASTAL AND
agenda and OCSD and other POTW SHELF SCIENCE , .,.
♦OIYM! I!O • IO JYNI 1015
special studies -A-
• Impetus for focus of regional monitoring
program
• Science community more closely
aligned and continue to focus on this "
issue