PI34A:
Water Mass Variability in Eastern Boundary Upwelling Systems: Climate Drivers and Ecosystem Impacts II Posters

Session ID#: 84796

Session Description:
Highly productive Eastern Boundary Upwelling Systems (EBUS) present a confluence of different water masses, and variability in the relative contributions and depth structure of these source waters can impact biogeochemical cycles and ecosystem structure. Changes in upwelling source water characteristics may impact the magnitude and species composition of primary producers, with impacts on higher trophic levels. In the California Current, for example, variations in the relative influence of subarctic and tropical source waters affect the abundance, species composition and distribution of fish species. The El Niño-Southern Oscillation is a dominant driver of interannual variability in Pacific EBUS water mass distribution. Long-term trends in deoxygenation and decreasing pH levels in EBUS upwelled waters may also be linked to climate-driven changes. In this session we invite interdisciplinary presentations investigating changes in the physical, biological, and chemical characteristics of the EBUS source water masses and their impacts on marine ecosystems. Studies that combine observational and modeling efforts and that focus on climate change impacts are of particular interest.
Co-Sponsor(s):
  • PC - Past, Present and Future Climate
  • PL - Physical Oceanography: Mesoscale and Larger
Index Terms:

4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
4279 Upwelling and convergences [OCEANOGRAPHY: GENERAL]
4283 Water masses [OCEANOGRAPHY: GENERAL]
4516 Eastern boundary currents [OCEANOGRAPHY: PHYSICAL]
Primary Chair:  Mercedes Pozo Buil, University of California Santa Cruz, Institute of Marine Sciences, Santa Cruz, GA, United States
Co-chairs:  Melanie R Fewings, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Carmen G Castro, Instituto de Investigación Mariñas - CSIC, Departamento de Oceanografía, Vigo, Spain and Steven J. Bograd, NOAA Southwest Fisheries Science Center, Environmental Research Division, Monterey, United States
Primary Liaison:  Mercedes Pozo Buil, University of California Santa Cruz, Institute of Marine Sciences, Santa Cruz, GA, United States
Moderators:  Mercedes Pozo Buil, University of California Santa Cruz, Institute of Marine Sciences, Santa Cruz, GA, United States and Melanie R Fewings, University of Connecticut, Department of Marine Sciences, Groton, United States
Student Paper Review Liaison:  Steven J. Bograd, NOAA Southwest Fisheries Science Center, Environmental Research Division, Monterey, United States

Abstracts Submitted to this Session:

 
A Climatology of Chlorophyll Fluorescence in the California Current Region (647764)
Guilherme P Castelao and Daniel L Rudnick, Scripps Institution of Oceanography, La Jolla, CA, United States
 
An inter-EBUS comparison of zonal patterns of phytoplankton diversity with a Meridionally Averaged Model of Eastern Boundary Upwelling Systems (MAMEBUS) (653048)
Jordyn Moscoso1, Andrew Stewart1, Daniele Bianchi2 and James C McWilliams3, (1)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States, (2)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (3)University of California in Los Angeles, Los Angeles, United States
 
Anomalous Coastal Poleward Flow in Southern California and the Regional Impacts of this Prior to and during the 2014 Marine Heatwave and 2015-16 El Niño (646836)
Caroline Ford Lowcher, Scripps Institution of Oceanography, United States, Uwe Send, University of California, San Diego, CA, United States and Matthias J Lankhorst, UCSD, La Jolla, CA, United States
 
ARIOS: An Acidification Ocean Data Base in the Galician Upwelling Ecosystem (491794)
Fiz F Pérez1, Daniel Broullón1, Maryló Doval2, Xose A. Padin1 and Fernando Fraga1, (1)IIM, CSIC, Oceanography, Vigo, Spain, (2)INTECMAR, Bioxeoquímica Mariña, Vilagarcia, Spain
 
Basin-scale water biogeochemistry and stratification changes are decisive factors in the response of the California Current System to climate change (636057)
Evan M Howard, University of Washington, Oceanography, Seattle, WA, United States, Curtis A. Deutsch, University of Washington Seattle Campus, School of Oceanography, Seattle, United States, Hartmut Frenzel, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States, Lionel Renault, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States, James C McWilliams, University of California in Los Angeles, Los Angeles, United States, Daniele Bianchi, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States and Faycal Kessouri, Southern California Coastal Water Research Project, Costa Mesa, CA, United States
 
Development of hypoxic waters in multi-basin coastal waters of a large lake (656015)
Reza Valipour, Canada Centre for Inland Waters, Burlington, ON, Canada, Luis F. León, Research Scientist, Environment and Climate Change Canada, Burlington, ON, Canada and Ramachandra R Yerubandi, environment canada, Burlington, ON, Canada
 
Dynamics of the bottom boundary and nepheloid layers in a costal upwelling system (NW Iberia) (645475)
Nicolas Villacieros-Robineau1, Diana Zúñiga1, Beatriz Barreiro-González1, Fernando Alonso-Perez1, Francisco de la Granda1, Maria Frójan1, Curtis A Collins2, Eric D Barton3 and Carmen G Castro1, (1)Instituto de Investigación Mariñas - CSIC, Departamento de Oceanografía, Vigo, Spain, (2)Naval Postgraduate School, Monterey, United States, (3)Instituto de Investigación Mariñas - CSIC, Departamento de Oceanografía, Vigo, Pontevedra, Spain
 
Evaluation of the historical and future biogeochemical boundary conditions from earth system models for the California Current System (639754)
Josephine Dianne L Deauna1, Alexander E Yankovsky2 and Ryan R Rykaczewski1, (1)University of South Carolina, Columbia, SC, United States, (2)University of South Carolina Columbia, Columbia, SC, United States
 
Long-term subsurface dissolved oxygen trend in the NW Iberian coastal upwelling system (NE Atlantic) (646315)
Carmen G Castro1, Diana Zúñiga1, Ricardo F. Sanchez Leal2 and Nicolas Villacieros-Robineau1, (1)Instituto de Investigación Mariñas - CSIC, Departamento de Oceanografía, Vigo, Spain, (2)IEO, Cadiz, Spain
 
Ocean Acidification Variability in the California Current (503565)
Brianna Green, University of Tennessee, Earth and Planetary Sciences, Knoxville, TN, United States, Nicole S Lovenduski, University of Colorado, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States, Riley Xavier Brady, University of Colorado at Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States and Adrienne J Sutton, NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States
 
Response of the California Current Ecosystem to Mitigation of Carbon Dioxide (648313)
Jasmin G John1, Charles A Stock2, Ryan R Rykaczewski3, Elizabeth Drenkard4, Jessica Y Luo4 and John P Dunne5, (1)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (2)NOAA/GFDL, Princeton, NJ, United States, (3)University of South Carolina, Columbia, SC, United States, (4)NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (5)NOAA Geophys Fluid Dynamic, Princeton, United States
 
Seasonal-to-Interannual Drivers of Bottom Temperature Conditions in the Northern California Current System (644025)
Sulagna Ray, Groton, United States; University of Connecticut, Department of Marine Sciences, Groton, CT, United States, Samantha Siedlecki, University of Connecticut, Groton, United States, Michael A Alexander, NOAA/Earth System Research Laboratory, Physical Science Division, Boulder, United States, Albert J Hermann, University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States and Nicholas A Bond, NOAA/PMEL/JISAO, Seattle, WA, United States
 
Biogeochemical evolution of mesoscale subsurface eddies off central Chile (648205)
Lenna Oriana Ortiz, Instituto Milenio de Oceanografía (IMO), Concepción, Chile, Oscar Pizarro, Instituto Milenio de Oceanografia (IMO), Universidad de Concepcion, Concepcion, Chile, Boris Dewitte, LEGOS, Toulouse, France, Marcelona Cornejo, Escuela de Ciencias del mar, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile and Matías Pizarro-Koch, Instituto Milenio de Oceanografía (IMO), Chile