Southern California Oceanography MLPA South Coast Study...
Transcript of Southern California Oceanography MLPA South Coast Study...
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Southern California Oceanography Southern California Oceanography MLPA South Coast Study RegionMLPA South Coast Study Region
Oceanography Workshop September 16, 2008 • El Segundo, CA
John Largier • Bodega Marine Lab
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Developing an Oceanographic Developing an Oceanographic Perspective for MLPA in S CaliforniaPerspective for MLPA in S California
What can we do with models & cartoons?What can we do with models & cartoons?
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Developing an Oceanographic Developing an Oceanographic Perspective for MLPA in S CaliforniaPerspective for MLPA in S California
I
II
III
VIV
VI
-- Currents & Connectivity
-- Water type & Habitat
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
ConnectivityConnectivity
- typical circulation pattern- variability …
… predictable currents? … stochastic dispersion?
- features
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
HabitatHabitat- biogenic water properties
(SST, Chl)- water quality,
i.e., contaminants
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
HabitatHabitat- biogenic water properties
(SST, Chl)- water quality,
i.e., contaminants
![Page 7: Southern California Oceanography MLPA South Coast Study …dfg.ca.gov/mlpa/pdfs/oceanography_largier_s.pdfMerged MODIS Aqua and Terra products. (Aug 13 - 17, 2006). Courtesy of M.](https://reader036.fdocuments.in/reader036/viewer/2022070916/5fb6b59ba19cc77f1e327613/html5/thumbnails/7.jpg)
Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
LargeLarge--scale circulationscale circulation
What ?
wind stress curl (Dong & McW 2007)
schematic (Hickey 1992, 2003)
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
LargeLarge--scale circulationscale circulation
Seasonal evolution …… spring: winds & upwelling
… summer: winds relax inshore,curl & Ekman pumping, SC Counter-current Southern California Eddy
… fall: broadening recirculation becomes unstable
seasonal dynamics (Di Lorenzo 2003)
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Merged MODIS Aqua and Terra products. (Aug 13 - 17, 2006). Courtesy of M. Kahru and B.G. Mitchell, OPG Group, SIO
SBC, SMB, islands,upwelling, …
Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
Multiple scales of patterns Multiple scales of patterns ……
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
Shelf currentsShelf currents
Southward currents over the shelf …reversing at times (Oct-Nov?)
Huntington Beach (Noble et al 2004)
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
UpwellingUpwellingShallow thermoclinethroughout SCB, breaks surface at specific times & places
Pt Conception, Pt Dume, Palos Verdes, Pt Loma, S of border
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
UpwellingUpwelling
Thermistors N and S of Pt Loma
Zimmerman
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Cross-shore transects, shelf break to the inner shelf :
distance from 20m isobath (m)
dept
h (m
)
Temperature (oC)
Nitrate conc. (μM)
Chlorophyll conc. (μg/l)
( oC)
(μM)
(μg/l)Upwelling Upwelling …… Shallow thermocline with Chl max
Drew Lucas data (unpubl.)
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
Internal WavesInternal Waves … and other HF motions
Temperature, fluorescence, (08/03 - 08/23/2006; 25 m WW):
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
Internal WavesInternal Waves … and other HF motions
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
WavesWaves
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
River and tidal plumesRiver and tidal plumes
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Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
River and tidal plumesRiver and tidal plumes
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Developing an Oceanographic Developing an Oceanographic Perspective for MLPA in S CaliforniaPerspective for MLPA in S California
I
II
III
VIV
VI
-- Currents & Connectivity
-- Water type & Habitat
![Page 20: Southern California Oceanography MLPA South Coast Study …dfg.ca.gov/mlpa/pdfs/oceanography_largier_s.pdfMerged MODIS Aqua and Terra products. (Aug 13 - 17, 2006). Courtesy of M.](https://reader036.fdocuments.in/reader036/viewer/2022070916/5fb6b59ba19cc77f1e327613/html5/thumbnails/20.jpg)
Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
ConnectivityConnectivity
- typical circulation pattern- variability …
… predictable currents? … stochastic dispersion?
- features
![Page 21: Southern California Oceanography MLPA South Coast Study …dfg.ca.gov/mlpa/pdfs/oceanography_largier_s.pdfMerged MODIS Aqua and Terra products. (Aug 13 - 17, 2006). Courtesy of M.](https://reader036.fdocuments.in/reader036/viewer/2022070916/5fb6b59ba19cc77f1e327613/html5/thumbnails/21.jpg)
Southern California Oceanography MLPA SCSRSouthern California Oceanography MLPA SCSR
HabitatHabitat- biogenic water properties
(SST, Chl)- water quality,
i.e., contaminants
![Page 22: Southern California Oceanography MLPA South Coast Study …dfg.ca.gov/mlpa/pdfs/oceanography_largier_s.pdfMerged MODIS Aqua and Terra products. (Aug 13 - 17, 2006). Courtesy of M.](https://reader036.fdocuments.in/reader036/viewer/2022070916/5fb6b59ba19cc77f1e327613/html5/thumbnails/22.jpg)
Developing an Oceanographic Developing an Oceanographic Perspective for MLPA in S CaliforniaPerspective for MLPA in S California
What can we do with models & cartoons?What can we do with models & cartoons?