OB51B:
Biogeochemistry in the BGC-Argo Era: From Process Studies to Ecosystem Forecasts I

Session ID#: 93108

Session Description:
Fostering the establishment of a global ocean observing system, Walter Munk defined the twentieth century as the “century of undersampling”, and this is true especially for marine biogeochemical data.

Biogeochemical-Argo is bringing us into a new era that is characterized by an unprecedented availability of high-resolution biogeochemical profiles, delivered throughout the year and globally distributed. Thanks to these observations, the dynamics of ocean carbon, oxygen, nutrients, primary producers, pH and bio-optical properties can be examined in all three spatial dimensions. The increased availability of these observations allows us to unravel biogeochemical processes, and validate and test hypotheses across a range of spatial and temporal scales. These new observations will also substantially improve the quality of biogeochemical models by allowing vigorous validation, improved parameterizations and formal data assimilation.

In this session, we welcome contributions leveraging the high data availability provided by BGC-Argo floats combined with theoretical or numerical models, data assimilation, machine learning, multi-platform sensors or other novel interpretative methodologies that expand the surface view of ocean ecosystem dynamics into the vertical dimension.

Co-Sponsor(s):
  • IS - Ocean Observatories, Instrumentation and Sensing Technologies
  • OM - Ocean Modeling
  • PI - Physical-Biological Interactions
Index Terms:
Primary Chair:  Paolo Lazzari, National Institute of Oceanography and Applied Geophysics (OGS), Trieste, Italy
Co-chairs:  Katja Fennel, Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Giorgio Dall'Olmo, Plymouth Marine Laboratory, Plymouth, United Kingdom and Alexandre Mignot, Mercator Océan International, Ramonville-Saint-Agne, France
Primary Liaison:  Paolo Lazzari, National Institute of Oceanography and Applied Geophysics (OGS), Trieste, Italy
Moderators:  Paolo Lazzari, National Institute of Oceanography and Applied Geophysics (OGS), Trieste, Italy and Katja Fennel, Dalhousie University, Department of Oceanography, Halifax, NS, Canada
Student Paper Review Liaison:  Giorgio Dall'Olmo, Plymouth Marine Laboratory, Plymouth, United Kingdom

Abstracts Submitted to this Session:

Deep phytoplankton biomass maxima in the global ocean: a Biogeochemichal-Argo floats investigation (645141)
Marin Cornec, Sorbonne Universite, CNRS, Laboratoire d'Oceanographie de Villefranche, LOV, Villefranche-sur-Mer, France, Alexandre Mignot, Mercator Océan International, Ramonville-Saint-Agne, France, Leo Lacour, Laboratoire d'océanographie de Villefranche (CNRS/UPMC), France, Lionel Guidi, Laboratoire d'Océanographie de Villefranche (LOV), UMR 7093, Sorbonne Université, Villefranche-sur-Mer, France, Rémi Laxenaire, Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States, Sabrina Speich, Ecole Normale Supérieure, Laboratoire de Météorologie Dynamique, Paris, France, Fabrizio D'Ortenzio, Observatoire Océanologique de Villefranche, Villefranche Sur Mer, France, Antoine Poteau, Sorbonne Universités, UPMC Univ Paris 06, INSU-CNRS, Laboratoire d'Océanographie de Villefranche, Villefranche-sur-mer, France, Catherine Schmechtig, Sorbonne Universités, UPMC Univ Paris 06, INSU-CNRS, OSU Ecce Terra, Paris, France and Herve Claustre, Laboratoire d'Océanographie de Villefranche, Villefranche-sur-Mer, France
Autonomous Measurement of Physically and Biologically Driven Changes in Dissolved Oxygen in the Northern Gulf of Mexico (645950)
Christopher Michael Gordon1, Katja Fennel1, Clark Richards2, Lynn K Shay3 and Jodi Brewster3, (1)Dalhousie University, Department of Oceanography, Halifax, NS, Canada, (2)Fisheries and Oceans Canada, Halifax, NS, Canada, (3)RSMAS/University of Miami, Department of Ocean Sciences, Miami, FL, United States
In-situ observations of phytoplankton phenology, net primary production (NPP), net community production (NCP), and NCP to NPP ratio in the North Atlantic Ocean with Argo profiling floats (642382)
Bo Yang, University of Virginia, Environmental Sciences, Charlottesville, VA, United States, Emmanuel Boss, University of Maine, Orono, ME, United States, Nils Haentjens, University of Maine, School of Marine Sciences, Orono, ME, United States, Michael Behrenfeld, Oregon State University, Corvallis, OR, United States, Matthew C Long, National Center for Atm Res, Boulder, CO, United States, Steven R Emerson, University of Washington Seattle Campus, Seattle, WA, United States, Rachel Eveleth, Oberlin College, Oberlin, OH, United States and Scott Doney, University of Virginia, Charlottesville, VA, United States
The Ocean’s Biological Pump Determined from In Situ Oxygen Measurements on Profiling Floats (642496)
Steven R Emerson1, Bo Yang2 and Stephen Riser1, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States
Assessing bloom timing and carbon, nutrient, and oxygen budgets from VOS surface, BGC-Argo profiling float, and monitoring data in the Baltic Sea (645745)
Henry C Bittig1, Laura Tuomi2, Gregor J Rehder3, Simo-Matti Siiriä2, Jens Daniel Müller3 and Bernd Schneider3, (1)Leibniz Institute for Baltic Sea Research, Department of Physical Oceanography and Instrumentation, Rostock, Germany, (2)Finnish Meteorological Institute, Marine Research Unit, Helsinki, Finland, (3)Leibniz Institute for Baltic Sea Research, Department of Marine Chemistry, Rostock, Germany
Southern Ocean BGC-Argo Detect Significant Under Ice Phytoplankton Growth Before Ice Retreat (651785)
Mark Hague, University of Cape Town, Cape Town, South Africa and Marcello Vichi, University of Cape Town, Department of Oceanography and Marine Research Institute, Cape Town, South Africa
The Limited Effect of Typhoons on Phytoplankton Dynamics Observed by BGC-Argo (642889)
Fei Chai1,2, Yuntao WANG3, Xiaogang Xing2 and Yunwei Yan4, (1)Second Institute of Oceanography, State Oceanic Administration, State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou, China, (2)Second Institute of Oceanography, State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou, China, (3)Second Institute of Oceanography State Oceanic Administration, Hangzhou, China, (4)Second Institute of Oceanography, China
Improving marine biogeochemical forecasts through data assimilation of BGC-Argo float data (651642)
Gianpiero Cossarini, Anna Teruzzi, Stefano Salon and Laura Feudale, National Institute of Oceanography and Applied Geophysics (OGS), Oceanography, Trieste, Italy