OC44A:
Advances in Modeling O2 and pH in the Ocean: From Physics to Fish II Posters


Session ID#: 27695

Session Description:
Trends of declining O2 and pH are frequently reported in the coastal and open ocean and are environmental concerns because of their deleterious effects on marine life and alterations of biogeochemical cycles. In the coastal zone, bottom water hypoxia and acidification are driven by land-based nutrient loads and physical processes such as stratification or upwelling. Acidification in the open ocean is driven by CO2 uptake and the carbon pump. Drivers of O2 declines in the open ocean are linked to large-scale changes in sea surface temperature, depth of the surface mixed layer, and upwelling. Due to the complex interactions of these physical and biological processes, which cannot be fully characterized through observations alone, numerical models are important research tools for quantifying mechanisms, assessing ecosystem impacts, and evaluating how anthropogenic activities may affect conditions. This session is devoted to the presentation of diverse modeling approaches, including those focused on describing the mechanisms controlling deoxygenation and acidification, on anthropogenic and climatic influences on these conditions, and on their ecological effects. We invite studies that predict the O2 and CO2 systems, including their effects, spanning topics from physics to fish. Applicable models range from fully empirical to complex three-dimensional models.
Primary Chair:  John C Lehrter, University of South Alabama, Marine Sciences, Mobile, AL, United States
Co-chairs:  Katja Fennel, Dalhousie University, Department of Oceanography, Halifax, NS, Canada and Dubravko Justic, Louisiana State University, Oceanography and Coastal Sciences, Baton Rouge, LA, United States
Moderators:  Dubravko Justic, Louisiana State University, Oceanography and Coastal Sciences, Baton Rouge, LA, United States, Katja Fennel, Dalhousie University, Department of Oceanography, Halifax, NS, Canada and John C Lehrter, Dauphin Island Sea Lab, Dauphin Island, AL, United States
Student Paper Review Liaison:  John C Lehrter, Dauphin Island Sea Lab, Dauphin Island, AL, United States
Index Terms:

4802 Anoxic environments [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4813 Ecological prediction [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4834 Hypoxic environments [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • F - Fisheries
  • OM - Ocean Modeling
  • RS - Regional Studies

Abstracts Submitted to this Session:

Impacts of anthropogenic nutrients on benthic hypoxia in the East China Sea – A Numerical Study (315575)
Yi-Cheng Teng, Kon-Kee Liu and Tze-Ying Yeh, NCU National Central University of Taiwan, Jhongli, Taiwan
Projections of Chesapeake Bay hypoxia under regional climate change in the twenty-first century (315635)
Wenfei Ni1, Ming Li2, Andrew Ross3, Raymond Najjar3, Moges Berbero Wagena4 and Zach M Easton4, (1)University of Maryland Center for Environmental Science Horn Point Laboratory, Cambridge, MD, United States, (2)Univ of Maryland Ctr for Env., Cambridge, MD, United States, (3)Pennsylvania State University, Department of Meteorology, University Park, PA, United States, (4)Virginia Tech, Blacksburg, VA, United States
Oxygen budget estimation from the advection-diffusion equation in a high resolution model of the Texas-Louisiana Shelf (326839)
Veronica Ruiz Xomchuk, Texas A&M University, Oceanography, College Station, TX, United States and Robert D Hetland, Texas A&M University, College Station, TX, United States
The Intra-Americas Sea Nowcast/Forecast System for Hypoxia Modeling on the Louisiana Continental Shelf (305158)
Dong S Ko, Naval Research Lab, Oceanography, Stennis Space Center, MS, United States and Dong-Ping Wang, Stony Brook University, Stony Brook, NY, United States
The impact of biological activities on the dissolved oxygen (DO) concentration in the East/Japan Sea (307995)
Haejin Kim1, Katsumi Takayama2, Naoki Hirose2, Goh Onitsuka3, Takafumi Yoshida4 and Tetsuo Yanagi5, (1)Kyushu University, Interdisciplinary Graduate School of Engineering Sciences, Fukuoka, Japan, (2)Kyushu University, Research Institute for Applied Mechanics, Fukuoka, Japan, (3)Fisheries Research Agency, Hatsukaichi, Japan, (4)Northwest Pacific Region Environmental Cooperation Center, Toyama, Japan, (5)International Environmental Management of Enclosed Coastal Seas Center, Kobe, Japan
Coastal upwelling dynamics influence spatial patterns of hypoxia and nearshore hypoxia events in the central basin of Lake Erie (312386)
Mark D Rowe1, Eric J Anderson2, Steven A Ruberg2, Edward M Verhamme3, Dmitry Beletsky4, Hongyan Zhang4, Thomas H Johengen4 and Craig Stow2, (1)Cooperative Institute for Great Lakes Research, University of Michigan, Ann Arbor, MI, United States, (2)NOAA, Great Lakes Environmental Research Laboratory, Ann Arbor, MI, United States, (3)LimnoTech, Ann Arbor, MI, United States, (4)University of Michigan, Cooperative Institute for Great Lakes Research, Ann Arbor, MI, United States
Exploring hypoxia dynamics on the LATEX Shelf through geostatistical space-time modeling (317918)
Daniel R Obenour, Venkata Rohith Matli and Shiqi Fang, North Carolina State University Raleigh, Raleigh, NC, United States
Impacts of direct atmospheric nitrogen deposition and coastal nitrogen fluxes on Chesapeake Bay hypoxia (322199)
Fei Da, Virginia Institute of Marine Science, Gloucester Point, VA, United States, Marjorie A. M. Friedrichs, Virginia Inst Marine Science, Gloucester Point, VA, United States and Pierre St-Laurent, Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States
Impacts of future rising temperatures on Chesapeake Bay hypoxia (322370)
Kyle Hinson1, Ike Irby1, Fei Da1 and Marjorie A. M. Friedrichs2, (1)Virginia Institute of Marine Science, Gloucester Point, VA, United States, (2)Virginia Inst Marine Science, Gloucester Point, VA, United States
Investigating hypoxia in a Climate Change scenario in a region of Upwelling (312608)
Matheus Fagundes, University of Georgia, Athens, GA, United States, Sorush Omidvar, Research Assistant, Engineering, Athens, GA, United States and Clifton Brock Woodson, Stanford University, Palo Alto, CA, United States
Quantifying the Relative Importance of Different Nitrogen Sources on Hypoxia Development in the Northern Gulf of Mexico: A Biogeochemical Model Analysis (304378)
Fabian Grosse1, Katja Fennel1 and Arnaud Laurent2, (1)Dalhousie University, Department of Oceanography, Halifax, NS, Canada, (2)Dalhousie University, Halifax, NS, Canada
Projected Effects of Anthropogenic CO2 Emissions on Eutrophication-Induced Hypoxia and Acidification in the Northern Gulf of Mexico (311449)
Arnaud Laurent, Dalhousie University, Halifax, NS, Canada, Katja Fennel, Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Dong Ko, US Naval Research Laboratory, Monterey, CA, United States and John C Lehrter, Dauphin Island Sea Lab, Dauphin Island, AL, United States

See more of: Ocean Change: Acidification and Hypoxia