PI007
Water Mass Variability in Eastern Boundary Upwelling Systems: Climate Drivers and Ecosystem Impacts
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.
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
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
Ocean Acidification Variability in the California Current (503565)
Brianna Green, New Mexico Institute of Mining and Technology, Socorro, NM, 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
Basin-scale water biogeochemistry and stratification changes are decisive factors in the response of the California Current System to climate change (636057)
Evan M Howard1, Curtis A. Deutsch2, Hartmut Frenzel2, Lionel Renault3, James C McWilliams4, Daniele Bianchi3 and Faycal Kessouri5, (1)University of Washington, Oceanography, Seattle, WA, United States, (2)University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States, (3)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (4)UCLA, Los Angeles, CA, United States, (5)Southern California Coastal Water Research Project, Costa Mesa, CA, United States
Momentum and climate governors of the California Undercurrent transport (636784)
Ru Chen1, James C McWilliams2, Lionel Renault2,3 and Faycal Kessouri2, (1)Tianjin University, School of Marine Science and Technology, Tianjin, China, (2)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (3)University of Toulouse, France
Climate drivers of variability within and across the major Eastern Boundary Upwelling Systems (643169)
Giulia Bonino, Euro-Mediterranean Center on Climate Change, Bologna, Italy, Emanuele Di Lorenzo, Georgia Inst Tech, Earth and Atmospheric Sciences, Atlanta, GA, United States, Simona Masina, Euro-Mediterranean Center on Climate Change, Ocean Modelling and Data Assimilation, Bologna, Italy and Doroteaciro Iovino, Euro-Mediterranean Center on Climate Change Foundation, Bologna, Italy
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, CT, United States, Michael A Alexander, NOAA/Earth System Research Laboratory, Physical Science Division, Boulder, CO, 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
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
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
Circulation patterns estimated by an inverse model in Cabo Verde Frontal Zone (647263)
Nadia Burgoa1, Francisco Machin2, Angel A Rodriguez-Santana3, Ángeles Marrero-Díaz2 and Antonio Martínez-Marrero2, (1)Universidad de Las Palmas de Gran Canaria, Physics, Las Palmas de Gran Canaria, Spain, (2)Universidad de Las Palmas de Gran Canaria, Física, Las Palmas de Gran Canaria, Spain, (3)University of Las Palmas de Gran Canaria, Faculty of Marine Sciences, Las Palmas, Spain
Is EBUS shelf hypoxia imported or home-grown? Observations from northern California (647389)
Kate Hewett, University of California Davis, Bodega Marine Laboratory, Davis, CA, United States and John L Largier, University of California Davis, Coastal & Marine Sciences Institute, Davis, CA, 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, Chile and Matías Pizarro-Koch, Instituto Milenio de Oceanografía (IMO), Chile
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
Variability of SST Frontal Activity in Eastern Pacific Ocean and its relationship with large-scale oscillation (649892)
Yuntao WANG, Second Institute of Oceanography State Oceanic Administration, Hangzhou, China, Yeping Yuan, Zhejiang University, Hangzhou, China and Jin Liu, Zhejiang University, Ocean College, Zhoushan, China
A Lagrangian study of the contribution of the Canary coastal upwelling to the open North Atlantic nitrogen budget (650789)
Derara Hailegeorgis1, Zouhair Lachkar1, Christoph Rieper2 and Nicolas Gruber2, (1)New York University Abu Dhabi, Center for Prototype Climate Modeling (CPCM), Abu Dhabi, United Arab Emirates, (2)ETH Zurich, Environmental Physics, Zurich, Switzerland
Volume and heat budgets in the coastal California Current System (652724)
Katherine Dorothy Zaba1, Daniel L Rudnick2, Bruce D Cornuelle2, Ganesh Gopalakrishnan2 and Matthew R Mazloff2, (1)Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States, (2)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 Stewart2, Daniele Bianchi1 and James C McWilliams3, (1)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (2)University of Oxford, Oxford, United Kingdom, (3)UCLA, Los Angeles, CA, United States
Composite Response of the California Current System to ENSO in the ROMS-NEMURO (653686)
Nathali Cordero Quiros1, Arthur J Miller1, Enrique Curchitser2, Raphael Dussin3, Yunchun Pan4 and Lawrence Angelo Balitaan4, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Rutgers University, Department of Environmental Sciences, New Brunswick, NJ, United States, (3)Rutgers University New Brunswick, Department of Environmental Sciences, New Brunswick, NJ, United States, (4)University of California San Diego, 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
Temporal Variability of the Dissolved Oxygen in the Southern California Current System (657825)
Norma Lidia Oliva, Universidad Autonoma de Baja California, Ensenada, Mexico, Jose Martin Martin Hernandez-Ayon, Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanologicas, Ensenada, BC, BJ, Mexico, Jose Augusto Valencia Gasti, Universidad Autonoma de Baja California, Facultad de Ciencias Marinas, Ensenada, Mexico, Reginaldo Durazo, UABC, Ensenada, B.C., CA, United States, Eduardo Santamaria-del-Angel, Universidad Autonoma de Baja California, Ensenada, BJ, Mexico and Tim R Baumgartner, CICESE, Biological Oceanography, Ensenada, CA, Mexico
