Southern Ocean Workshop April 2017 Main Seminar Room, NCAR Mesa Lab
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1 Monday (10 Apr) 08:30-08:50 Introduction SAM etc, Antarctic Sea-Ice Variability (Kyle Armour) 08:50-09:10 David Thompson Not the SAM: Another form of large-scale variability in the Southern Hemisphere atmospheric circulation with potential implications for the 09:10-09:30 Matthew England Southern Drivers of Ocean Antarctic sea-ice expansion and Southern Ocean surface cooling over the past four decades 09:30-09:50 Ed Doddridge Impact of SAM on the seasonal cycle of sea ice extent around Antarctica 09:50-10:10 Marika Holland Factors driving regional sea ice variability and trends 10:10-10:30 Cecilia Bitz Why Did Antarctic Sea Ice Plumet in late 2016? 10:30-11:10 Break ACC I (Dan Whitt) 11:10-11:30 Lynne Talley The meandering and spiraling pathway of the Antarctic Circumpolar Current and climate variations 11:30-11:50 Teresa Chereskin Transport and dynamics of the ACC in Drake Passage from observations made during cdrake 11:50-12:20 Discussion (Lead: John Marshall) 12:20-13:50 Lunch (NCAR Cafeteria, cash only) 13:50-14:10 Andy Hogg Is the Antarctic Circumpolar Current related to the Meridional Overturning Circulation? 14:10-14:30 David Marshall Eddy saturation of the Antarctic Circumpolar Current 14:30-14:50 Sjoerd Groeskamp Could Cabbeling play a limiting role on the surface to interior pathway of Anthropogenic Carbon in the Southern Ocean? 14:50-15:35 Break Antarctic Margins (Andy Thompson) 15:35-15:55 Steve Rintoul Ocean-ice shelf interaction, polynya dynamics and bottom water change in East Antarctica 15:55-16:15 John Klinck Effects of projected changes in wind, atmospheric temperature and freshwater inflow on the Ross Sea 16:15-16:35 Ryan Abernathey Water Mass Transformation Under Southern Ocean Sea Ice 16:35-16:55 Andrew Stewart Eddy/tidal mixing and transport at the Antarctic margins 16:55-17:25 Discussion (Lead: Matt Long) 17:25-20:00 Poster session (refreshments included) 20:00 Shuttle return to hotel
2 Tuesday (11 Apr) 08:30-08:50 Coffee and discussion The (sub)mesoscale of the ACC (Sarah Gille) 08:50-09:10 Ute Hausmann Observed mesoscale eddy signatures in Southern Ocean surface mixedlayer depth 09:10-09:30 Hajoon Song Mesoscale modulation of air-sea CO2 flux in Drake Passage 09:30-09:50 Ivy Frenger The effect of resolving versus parameterizing the ocean mesoscale on ocean anthropogenic carbon storage 09:50-10:10 Giuliana Viglione Spatial Variations of Submesoscale Instabilities in Drake Passage 10:10-10:30 Magdalena Carranza Gradients of bio-optical properties within the Southern Ocean mixed layer 10:30-11:00 Break Biogeochemistry of the Southern Ocean (Matthew Long) 11:00-12:00 Jorge Sarmiento Role of the Southern Ocean in the Regulation of Carbon, Heat, and Biological Productivity 12:00-13:30 Lunch (NCAR Cafeteria, cash only) 13:30-13:50 Ken Johnson Seasonal cycle of nitrate observed with SOCCOM profiling floats and implications for carbon export 13:50-14:10 Mike Dinniman How the cryosphere may affect iron supply to Antarctic phytoplankton blooms 14:10-14:30 Curtis Deutsch The Southern Ocean as a region of high particle transfer efficiency 14:30-15:15 Break 15:15-15:35 Tyler Rohr Variability in the mechanisms controlling Southern Ocean phytoplankton bloom phenology in an ocean model and satellite observations 15:35-15:55 Britton Stephens Atmospheric oxygen constraints on Southern Ocean air-sea CO2 flux seasonality 15:55-16:15 Eric Kort Airborne constraints on Southern Ocean carbon and oxygen fluxes: implications for magnitude of exchange and the importance of intense 16:15-16:35 Andy Jacobson exchange Atmospheric events constraints on Southern Ocean carbon exchange 16:35-17:05 Discussion (Lead: Dennis McGillicuddy) 17:05 Adjourn 17:30 Shuttle return to hotel
3 Wednesday (12 Apr) The Southern Ocean and Glacial-Interglacial Cycles (Taka Ito) 08:30-08:50 Daniel M. Sigman The role of the Antarctic Ocean in glacial/interglacial CO2 change as diagnosed from upper ocean biogeochemical conditions 08:50-09:10 Jess Adkins Deep-Sea Coral Evidence for the State of the Southern Ocean Biological Pump and Circulation During the Last Glacial Period and Deglaciation 09:10-09:30 Raffaele Ferrari The ocean meridional overturning circulation at the LGM 09:30-09:50 Malte Jansen Deciphering deep ocean circulation changes between the present and last glacial maximum 09:50-10:35 Break 10:35-10:55 Shantong Sun Does Southern Ocean surface forcing shape the global ocean overturning circulation? 10:55-11:15 Bob Anderson Geochemical evidence for the state of the ice-age Southern Ocean 11:15-11:35 David Ferreira Linking Glacial-Interglacial cycles to multiple equilibria of climate 11:35-11:55 Taka Ito Carbon cycle responses to the multiple equilibria of climate 11:55-12:15 Sophia Hines Insight into glacial interhemispheric ocean dynamics using a timedependent box model with realistic ocean physics 12:15-13:45 Lunch (NCAR Cafeteria, cash only) ACC II (David Marshall) 13:45-14:05 Andrew Thompson The dynamics of a multi-basin overturning circulation 14:05-14:25 Emily Newsom The Atlantic-Pacific Buoyancy Dipole: a Global Context for Southern Ocean Zonal Asymmetry 14:25-14:55 Break 14:55-15:15 Veronica Tamsitt Pathways of upwelling deep waters to the surface of the Southern Ocean 15:15-15:35 Adele Morrison Southern Ocean upwelling timescales 15:35-15:55 Alison Gray Observations of the Southern Ocean Meridional Overturning Circulation from Argo Data 15:55-16:15 Paul Spence Localized rapid warming of West Antarctic subsurface waters by remote winds 16:15-16:45 Discussion (Lead: Danny Sigman) 16:45 Adjourn 17:00 Shuttle return to hotel
4 Thursday (13 Apr) ACC II (contd) (John Marshall) 08:30-08:50 Peter Gent Overturning Compensation in an Eddy-Resolving Climate Simulation 08:50-09:10 Todd Ringler Why the ventilation-defined ocean surface layer is materially and dynamically isolated from the adiabatic interior 09:10-09:30 Anirban Sinha Timescales of mesoscale eddy equilibration in the Southern Ocean 09:30-10:10 Xiaozhou Ruan Topographic closure of the overturning circulation in the Southern Ocean 09:50-10:10 Break 10:10-10:50 Discussion 10:50-12:30 Lunch (NCAR Cafeteria, cash only) 12:30 Shuttle return to hotel 12:00-17:00 Informal discussion as desired (Damon Room and Chapman Room)
5 Posters (Monday evening) Jon Baker Ben Bronselaer Atmospheric CO2 and the Southern Ocean: A master control of global climate? Agreement of simulated and observed ocean CO2 uptake Carolina Dufour CO2 fluxes in the Southern Ocean: a model-data comparison Natalie M. Freeman Ivy Frenger Present and projected variability of biogeochemical fronts in the Southern Ocean On the relationship between Southern Ocean eddies and phytoplankton Sarah Gille Eddies and the Antarctic Circumpolar Current Julia Hazel Modeling Water Mass Production and Basal Melt in the Weddell Sea Matthew W. Hecht Martin Hoecker- Martinez Taka Ito Ken Johnson Partitioning of Southern Ocean heat transport between transient and standing eddies: Insight from an idealized multi-resolution study Flux Estimates from Lagrangian Flights over Drake Passage and the Patagonian Shelf Antarctic density stratification and the strength of the circumpolar current during the Last Glacial Maximum Biogeochemical sensor performance in the SOCCOM profiling float array Colin Lindsay Nikki Lovenduski Variable Southern Ocean sea-to-air fluxes of CO2 tagged by deep ocean 14C Uncertainty in projections of Southern Ocean acidification Nikki Lovenduski Jessica Masich Variability and change in Southern Ocean carbon: The Drake Passage bellwether Interfacial form stress in the Southern Ocean State Estimate Kathryn McKain Large-scale vertical gradients of atmospheric trace gases to constrain airsea CO2 fluxes in the Southern Ocean David R. Munro Inter-annual Variability in the Seasonal Cycle of Nutrients, Dissolved O2, Dissolved Inorganic Carbon, and Surface Ocean pco2 from the Drake Passage Time-series
6 Posters (Monday evening) Dave Munday A nonlinear equivalent barotropic model of the ocean Cynthia Nevison Ana Ordonez Alice Della Penna Sarah Purkey Cesar B. Rocha Constraining Satellite Ocean Color-Derived Export Fluxes in the Southern Ocean Using Atmospheric Potential Oxygen (APO) Data Synoptic cyclones and sea ice in CESM: Their interactions in historical and projected climates Lagrangian analysis of Kerguelen's naturally iron-fertilised phytoplankton bloom Antarctic Bottom Water variability in the Southeast Pacific Basin along 103 W Fine-scale Southern Ocean dynamics from space: Preliminary results Cristina Schultz Dan Whitt Samantha Wills High-Resolution Simulation of Sea Ice, Ocean Circulation and Marine Biogeochemistry in the West Antarctic Peninsula (WAP) Synoptic to planetary scale wind variability enhances phytoplankton at fronts Investigating the observed relationships between variability in Agulhas sea surface temperatures and the atmospheric circulation Madeleine K. Youngs Basin-Width Dependence of Northern Deep Convection
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