1. California Current Ecosystem (CCE) Long Term Ecological Research site Mark D. Ohman Scripps Institution of Oceanography

2. U.S. LTER Network 26 sites

3. Secular trend Pacific Decadal Oscillation El Niño Low frequency forcing in the CCS SIO Pier Temp. PDO Index (N. Mantua)

4. Multidecadal Forcing and Ecosystem Responses Ohman and Venrick 2003 Lavaniegos and Ohman 2003 Brinton and Townsend 2003 from CalCOFI plankton samples

5. Experimental Process Studies Biological rate measurements focusing on key processes in the planktonic ecosystem Time Series Augmented CalCOFI (4x y -1 ) MODIS remote sensing Nearshore stations, moorings (SCCOOS) Modeling Coupled bio-physical models Nonlinear time series hindcast models Control volume property fluxes Information and Data Management Education and Outreach “K through grey” communities CCE LTER Program Elements

6. CalCOFI data (Goericke, unpub.) Temporal variations in nitracline depth El Niño

7.  Stratified, deep nitracline  Deep mixed layer  Low vertical velocities  Picoplankton dominated  Microbial food web  Well mixed, shallow nitracline  Shallow mixed layer  Strong upwelling (coastal or wind stress curl)  Microplankton dominated  Metazoan food web Exploiting spatial differences as an analogue of temporal change

8. http://ccelter.sio.ucsd.edu Scripps Institution of Oceanography/U.C.S.D.

9. SeaWIFS [  M N/m 3 ] E2 E1 E3 Chl-a [  M N/m 3 ] E1 E2 E3 Chl-a E3 Chl-a Ecosystem Model Independent verification CalCOFI in situ Di Lorenzo, E., A. J. Miller, D. J. Neilson, B. D. Cornuelle, and J. R. Moisan, 2003: Modeling observed California Current mesoscale eddies and the ecosystem response. International Journal of Remote Sensing Forecasting and Hindcasting Ocean Productivity Coupled bio-physical models

10. Geostrophic + Ekman = Net flux Convergence Divergence “Control Volume” to constrain property fluxes

11. Ocean Informatics Environment -Open source centered -New server installed: iOcean -SIO infrastructure partnering initiated: CalCOFI, PaCOOS, SCOOS, Palmer LTER Web site under construction: -local: http://ccelter.sio.ucsd.eduhttp://ccelter.sio.ucsd.edu -virtual: http://cce.lternet.edu (planned)http://cce.lternet.edu PreLaunch discussions/activites: -data policy, metadata (EML) -survey, collaborative tools Human Social Dynamics NSF project: -natural/human/information interfaces CCE Data/Information Management: design process has begun Karen Baker

12. CCE LTER Program Participants NameRoleInstitutionInterests Mark OhmanLead PISIOMesozooplankton Ecology Lihini AluwihareCo-PISIODissolved Organic Matter Karen BakerCo-PISIOInformation Management Katherine BarbeauCo-PISIOIron Geochemistry David CheckleyCo-PISIOMesozooplankton & Ichthyoplankton Peter FranksCo-PISIOBiophysical Modeling Ralf GoerickeCo-PISIOPhytoplankton Ecology Michael LandryCo-PISIOFood-Web Structure and Function Art MillerCo-PISIOPhysical Oceanography; Modeling Greg MitchellCo-PISIORemote Sensing and Bio-optics George SugiharaCo-PISIONonlinear Modeling Farooq AzamAssociateSIOBacteria/Microbial Food Webs Steven BogradAssociatePFELPhysical Oceanography Ron BurtonAssociateSIOMolecular Probes for Protists Dan CayanAssociateSIOAtmospheric Physics Teresa ChereskinAssociateSIOADCP Currents Emanuel DiLorenzoAssociateGeorgia Tech.Biophysical Modeling David HyrenbachAssociateDuke/PRBOSeabird Ecology Cheryl Peach &AssociateBAS &Education and Outreach planning Sharon FranksAssociateCA COSEEEducation and Outreach planning Brian PalenikAssociateSIOMicrobial Diversity Dan RudnickAssociateSIOMesoscale Ocean Physics Christian ReissAssociateSWFSC Planktivorous Fishes Ken SmithAssociateSIODeep-sea Benthic Ecology Bill SydemanAssociatePRBOSeabird Ecology; Marine Mammals Elizabeth VenrickAssociateSIOPhytoplankton Floristics SIO= Scripps Institution of Oceanography PFEL=Pacific Fisheries Environmental Laboratory, Georgia T=Georgia Institute of Technology, Duke = Duke University, PRBO = Pt. Reyes Bird Observatory, BAS = Birch Aquarium at Scripps, CA COSEE= California Center for Ocean Sciences Education Excellence, SWFSC=Southwest Fisheries Science Center/U.S. National Marine Fisheries Service

13. 1 Sept 2004 ... CCE LTER