PC44A:
Advances in Understanding Marine Heat Waves and Their Impacts I Posters


Session ID#: 28280

Session Description:
Marine heatwaves (MHWs) are prolonged periods of anomalously warm seawater temperatures – extreme events that can have notable impacts on marine ecosystems. They occur regionally throughout the global oceans, including marginal seas, continental shelves, and the open ocean. These anomalously warm events arise from local and/or remotely forced mechanisms related to atmospheric, climate, and/or ocean variability. MHWs have been associated with widespread mortality of species in marine ecosystems, major shifts in ecosystem structure, and fisheries closures and quota reductions. In a warming ocean, these events are becoming more relevant as thermal stress approaches or exceeds ecosystem tolerance levels. Long-term, sustained observing systems and in-situ and remotely sensed temperature data are important for detecting, monitoring, and understanding these events. Ocean models have improved our ability to diagnose mechanisms responsible for the extreme warming events. This session welcomes studies on MHWs from physical processes to ecological impacts. Relevant themes include characterization of historical events from observations and/or models, progress in understanding the underlying dynamics in the generation and decay of MHWs, the impacts of climate variability and anthropogenic climate change on MHW occurrence, duration and intensity, improvements in monitoring systems for MHWs, and documentation of impacts on marine ecosystems, fisheries, and aquaculture.
Primary Chair:  Jessica Benthuysen, Australian Institute of Marine Science, Townsville, QLD, Australia
Co-chairs:  Eric C. J. Oliver, Australian Research Council Centre of Excellence for Climate System Science, Sydney, Australia; Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Ke Chen, Woods Hole Oceanographic Institution, Department of Physical Oceanography, Woods Hole, MA, United States and Thomas Wernberg, The University of Western Australia, UWA Oceans Institute & School of Biological Sciences, Perth, Australia
Moderators:  Ke Chen, Woods Hole Oceanographic Institution, Department of Physical Oceanography, Woods Hole, MA, United States, Eric C. J. Oliver, Australian Research Council Centre of Excellence for Climate System Science, Sydney, Australia, Thomas Wernberg, The University of Western Australia, UWA Oceans Institute and School of Biological Sciences, Perth, Australia and Jessica Benthuysen, Australian Institute of Marine Science, Townsville, QLD, Australia
Student Paper Review Liaison:  Jessica Benthuysen, Australian Institute of Marine Science, Townsville, QLD, Australia
Index Terms:

4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
4217 Coastal processes [OCEANOGRAPHY: GENERAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • B - Biodiversity
  • RS - Regional Studies

Abstracts Submitted to this Session:

A Quasi-Dipole Structure in the Typical Summer Wind Forcing Over the California Current System Explains Spatial Variation in Coastal Water Temperature Anomalies During the Marine Heat Waves of 2014–2016 (306833)
Melanie R Fewings, University of Connecticut, Department of Marine Sciences, Groton, CT, United States and Kevin Sidney Jorden Brown, University of Connecticut, Department of Biomedical Engineering, Groton, CT, United States
Disruption of the Ocean Mixed Layer Heat Budget in Response to a Marine Heat Wave in the Northeast Pacific (314654)
Lauren Schmeisser, University of Washington Seattle Campus, Seattle, WA, United States, Samantha A Siedlecki, Univ of Washington-JISAO, Seattle, WA, United States, Nicholas A Bond, Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, WA, United States and Thomas P Ackerman, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States
An unprecedented coastwide toxic algal bloom linked to anomalous ocean conditions (Invited) (303136)
Ryan M McCabe1, Barbara M Hickey2, Raphael Martin Kudela3, Kathi A Lefebvre4, Nicolaus G Adams5, Brian D Bill6, Frances M D Gulland7, Richard Thomson8, William P Cochlan9 and Vera L Trainer5, (1)University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)UCSC, Santa Cruz, CA, United States, (4)NOAA Northwest Fisheries Science Center, Seattle, WA, United States, (5)NOAA Northwest Fisheries Science Center, Marine Biotoxins Program, Seattle, WA, United States, (6)NOAA Northwest Fisheries Science Center, Marine Biotoxins, Seattle, WA, United States, (7)The Marine Mammal Center, Sausalito, CA, United States, (8)Inst Ocean Sciences, Sidney, BC, Canada, (9)San Francisco State University - Romberg Tiburon Center, Tiburon, CA, United States
Impacts of “The Blob” on Euphausia pacifica in the Northern California Current (322073)
Christine Cass, Humboldt State University, Oceanography, Arcata, CA, United States, Eric Bjorkstedt, NOAA Fisheries, Southwest Fisheries Science Center and Department of Fisheries Biology, Humboldt State University, CA, United States and Roxanne Robertson, Cooperative Institute for Marine Ecosystems and Climate (CIMEC), Humboldt State University, Arcata, CA, United States
Variability in euphausiid size in response to the marine heatwave of 2014-2016 off northern California (325268)
Eric Bjorkstedt, NOAA Fisheries, Southwest Fisheries Science Center and Department of Fisheries Biology, Humboldt State University, CA, United States and Roxanne Robertson, Cooperative Institute for Marine Ecosystems and Climate (CIMEC), Humboldt State University, Arcata, CA, United States
Does Pacific Decadal Variability Influence the Northwest Atlantic Shelf Temperature? (311462)
Ke Chen, Woods Hole Oceanographic Institution, Department of Physical Oceanography, Woods Hole, MA, United States and Young-Oh Kwon, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Predominant Atmospheric and Oceanic Patterns During Coastal Marine Heatwaves (313191)
Robert William Schlegel, University of the Western Cape, Cape Town, South Africa, Eric Oliver, Dalhousie University, Halifax, NS, Canada, Sarah Perkins-Kirkpatrick, University of New South Wales, Climate Change Research Centre and ARC Centre of Excellence for Climate System Science, Sydney, Australia, Andries Kruger, South African Weather Service, Pretoria, South Africa and Albertus J. Smit, University of the Western Cape, Biodiversity and conservation biology, Bellville, South Africa
Spatial and Temporal Variability of Surface Heat Fluxes in the Southeast Indian Ocean (321224)
Xue Feng and Toshiaki Shinoda, Texas A&M University Corpus Christi, Department of Physical and Environmental Sciences, Corpus Christi, TX, United States
Towards predictability of ocean surface temperature extreme (304657)
Eva Cougnon1,2, Neil John Holbrook3,4, Eric Oliver5,6 and N L Bindoff3,4, (1)University of Tasmania, Institute of Marine and Antarctic Studies, Hobart, Australia, (2)National Environmental Science Programme, Earth Systems and Climate Change Hub, Hobart, Australia, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (4)National Environmental Science Programme, Earth Systems and Climate Change Hub, Australia, (5)Dalhousie University, Halifax, NS, Canada, (6)Dalhousie University, Oceanography, Halifax, NS, Canada
Extreme marine warming across tropical Australia during austral summer 2015-2016 (302577)
Jessica Benthuysen, Australian Institute of Marine Science, Townsville, QLD, Australia, Eric Oliver, Dalhousie University, Halifax, NS, Canada, Ming Feng, CSIRO, Oceans and Atmosphere, Crawley, Australia and Andrew Marshall, Australian Bureau of Meteorology, Hobart, Australia
Categorising and Naming Marine Heatwaves (324155)
Alistair J Hobday, CSIRO, Oceans & Atmosphere, Hobart, Australia, Eric Oliver, Dalhousie University, Halifax, NS, Canada, Alexander Sen Gupta, ARC Centre of Excellence for Climate System Science, Sydney, Australia, Thomas Wernberg, The University of Western Australia, UWA Oceans Institute and School of Biological Sciences, Perth, Australia, Dan E Smale, Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, United Kingdom, Neil John Holbrook, ARC Centre of Excellence for Climate System Science, Hobart, Australia, Mads S Thomsen, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand, New Zealand, Marcus G Donat, University of New South Wales, Climate Change Research Centre and ARC Centre of Excellence for Climate System Science, Sydney, Australia, Michael T Burrows, Scottish Marine Institute, Department of Ecology, Oban, United Kingdom, Jessica A Benthuysen, CSIRO, University of Tasmania, Hobart, TAS, Australia and Pippa J Moore, Aberystwyth University, Institute of Biological, Environmental and Rural Sciences, Aberystwyth, United Kingdom

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