OC44A:
Advances in Modeling O2 and pH in the Ocean: From Physics to Fish II Posters
OC44A:
Advances in Modeling O2 and pH in the Ocean: From Physics to Fish II Posters
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)
Projections of Chesapeake Bay hypoxia under regional climate change in the twenty-first century (315635)
The impact of biological activities on the dissolved oxygen (DO) concentration in the East/Japan Sea (307995)
See more of: Ocean Change: Acidification and Hypoxia