OB005
Biogeochemistry in the BGC-Argo era: from process studies to ecosystem forecasts

Session ID#: 84942

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.

Index Terms:

4260 Ocean data assimilation and reanalysis [OCEANOGRAPHY: GENERAL]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]

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
 
Forecasting the Near-term Evolution of the Southern Ocean Aragonite Saturation Horizon (636601)
David A Feagins, St. Mary's University, San Antonio, TX, United States
 
Using an Autonomous Biogeochemical Profiling Float to Determine the Effect of Natural Hydrocarbon Seeps and a Tropical Depression on the Gulf of Mexico System (638535)
Rachel Hannah Gates, Barnard College, New York, NY, United States, Joseph Montoya, School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States, Hugh Fargher, Teledyne Webb Research, North Falmouth, MA, United States, Andrew R Juhl, Lamont -Doherty Earth Observatory, Marine Biology, Palisades, NY, United States and Ajit Subramaniam, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
 
Assessing the Value of BGC Argo Profile Observations for Ocean Biogeochemical Data Assimilation in a Model of the Gulf of Mexico (641701)
Bin Wang1, Katja Fennel1, Christopher Michael Gordon1 and Liuqian Yu2, (1)Dalhousie University, Department of Oceanography, Halifax, NS, Canada, (2)The Hong Kong University of Science and Technology, Department of Mathematics, Hong Kong, Hong Kong
 
BGC ARGO Floats Measurements in the Baltic Sea – Dynamics of the Dissolved Oxygen Concentration. (642126)
Waldemar Walczowski1, Daniel Rak2 and Malgorzata Merchel2, (1)Institute of Oceanology Polish Academy of Sciences, Sopot, Poland, (2)Institute of Oceanology Polish Academy of Sciences, Physical Oceanography, Sopot, Poland
 
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, United States and Scott Doney, University of Virginia, Department of Environmental Sciences, 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
 
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
 
How well do we estimate particulate backscatter from satellites as compared to autonomous profiling floats in the open ocean? (643290)
Kelsey Bisson1, Emmanuel Boss2, Toby Kolohe Westberry1 and Michael Behrenfeld1, (1)Oregon State University, Corvallis, OR, United States, (2)University of Maine, Orono, ME, United States
 
Synergistic use of Remote Sensing and Modeling for Estimating Net Primary Productivity in the Red Sea with models Intercomparison (643299)
Wenzhao Li1, Surya Prakash PRAKASH Tiwari2, Hesham Mohamed El-Askary3,4, Mohamed Qurban5, Vassilis Amiridis6, K.P ManiKandan7, Michael J Garay8, Olga V. Kalashnikova8, Thomas Piechota1 and Daniele Struppa1, (1)Chapman University, Schmid College of Science and Technology, Orange, CA, United States, (2)KFUPM, Center for Environment and Water, Dhahran, Saudi Arabia, (3)Alexandria University, Department of Environmental Science, Faculty of Science, Alexandria, Egypt, (4)Chapman University, Center of Excellence in Earth Systems Modeling & Observations, Orange, CA, United States, (5)King Fahd University of Petroleum and Minerals, Geosciences Department, the college of Petroleum Engineering & Geosciences, Dhahran, Saudi Arabia, (6)National Observatory of Athens, IAASARS, Athens, Greece, (7)King Fahd University of Petroleum and Minerals, Center for Environment and Water, The Research Institute, Dhahran, Saudi Arabia, (8)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
 
The North Atlantic Spring Bloom and the Critical Depth Hypothesis: A reassessment using Bio-ARGO profiles and long time series of satellite data (644490)
Jinghui Wu, Xiamen University, State Key Laboratory of Marine Environmental Science, Xiamen, fujian, China, Joaquim I Goes, Lamont Doherty Earth Obs, Palisades, NY, United States, Zhongping Lee, Unv. Massachusetts Boston, Boston, MA, United States and Shaoling Shang, Xiamen Univ, Fujian Xiamen, China
 
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 Paris, 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
 
Using BGC-Argo Data to Disentangle the Physical and Biogeochemical Uncertainty in the Quality of Operational Biogeochemical Products (645265)
Stefano Salon1, Laura Feudale1, Gianpiero Cossarini1, Anna Teruzzi1, Giorgio Bolzon1 and Emanuela Clementi2, (1)National Institute of Oceanography and Applied Geophysics (OGS), Oceanography, Trieste, Italy, (2)Euro-Mediterranean Center on Climate Change, Ocean Modelling and Data Assimilation, Bologna, Italy
 
Atmospheric and in-water radiative transfer model validation with BGC-Argo float data in the Mediterranean Sea (645326)
Elena Terzic1, Paolo Lazzari1, Stefano Salon2, Watson W Gregg3, Emanuele Organelli4, Fabrizio D'Ortenzio5 and Vincenzo Velluci6, (1)National Institute of Oceanography and Applied Geophysics (OGS), Trieste, Italy, (2)National Institute of Oceanography and Applied Geophysics (OGS), Oceanography, Trieste, Italy, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Observatoire Océanologique de Villefranche, Villefranche sur Mer, France, (5)Observatoire Océanologique de Villefranche, Villefranche Sur Mer, France, (6)Observatoire Océanologique de Villefranche, Villefranche-sur-Mer, France
 
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
 
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
 
Simulating Argo profiling float trajectories and along-track biogeochemical variability in the California Current System using a high-resolution global model (647641)
Xiao Liu1,2, John P Dunne2, Elizabeth Drenkard2 and Gregory C Johnson3, (1)Princeton University, Atmospheric and Oceanic Sciences, Princeton, NJ, United States, (2)NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (3)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States
 
Quantifying the Effects of Phytoplankton Self-shading on Ocean Heating and Circulation with BGC Argo (648199)
Rosalind Echols, University of Washington Seattle, School of Oceanography, Seattle, WA, United States and Stephen Riser, University of Washington, School of Oceanography, Seattle, WA, United States
 
Subtropical winter blooms and particle pumps in the northwestern Pacific revealed by a BGC-Argo float (649819)
Xiaogang Xing, Second Institute of Oceanography, State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou, China, Fei Chai, Second Institute of Oceanography, State Oceanic Administration, State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou, China, Yunwei Yan, Second Institute of Oceanography, China and Yuntao WANG, Second Institute of Oceanography State Oceanic Administration, Hangzhou, China
 
Triple colocation between BGC-Argo, Copernicus Glocolour datasets and CMEMS Global modelling (651503)
Marine Bretagnon, ACRI-ST, Sophia-Antipolis, France, Philippe Garnesson, ACR-ST, Sophia-Antipolis, France, Alexandre Mignot, Mercator Océan International, Ramonville-Saint-Agne, France, Fabrizio D'Ortenzio, Observatoire Océanologique de Villefranche, Villefranche Sur Mer, France, Herve Claustre, Laboratoire d'Océanographie de Villefranche, Villefranche-sur-Mer, France, Fanton d'Andon Odile, ACRI-ST, France and Antoine Mangin, ACRI-ST, Sophia Antipolis, France
 
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
 
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
 
Inferring Biomass, Rates, and Diversity from Biogeochemical Profiling Float Arrays (652086)
Gael Forget1, Stephanie Dutkiewicz2, Oliver Jahn1 and Michael J Follows1, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Evolution of a Subducted Carbon Rich Filament on the Edge of the North Atlantic Gyre (653137)
Alexis Johnson, University of Rhode Island, Oceanography, Narragansett, RI, United States and Melissa Omand, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
 
Evaluation of biogeochemical float pCO2 estimates and empirical approaches to estimate total alkalinity in the Southern Ocean using carbonate system observations from the Drake Passage (655113)
David R Munro, National Oceanic and Atmospheric Administration, Global Monitoring Division, Earth System Research Laboratory, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Yuichiro Takeshita, Monterey Bay Aquarium Research Institute, CA, United States, Seth M Bushinsky, University of Hawaii at Manoa, Marine Sciences Building, Honolulu, HI, United States, Colm Sweeney, NOAA ESRL, Global Monitoring Division, Boulder, CO, United States and Taro Takahashi, Columbia Univ, Palisades, NY, United States
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