Previous Polar Seminars
2017
January 17: Laura Stevens, Woods Hole Oceanographic Institution, Influence of meltwater on Greenland Ice Sheet dynamics: rapid supraglacial lake drainages to inter-annual ice-sheet flow
February 14: Yuzhen Yan, Princeton University, Searching for the oldest ice in Allan Hills Blue Ice Areas, East Antarctica
February 21: Wally Broecker, Columbia University, What drove CO2 down during each 100 kyr cycle?
March 14: Manfredi Manizza, Scripps Institution of Oceanography, Evaluating ocean physical-biogeochemical models at high latitudes using multiple atmospheric gases.
April 4: Derek Mueller, Carleton University, Arctic ice shelves, epishelf lakes and basal channels
2016
November 1: Veronica Tamsitt, Scripps Institution of Oceanography, 3-dimensional pathways of deep water upwelling in the Southern Ocean
October 11: Jane Willenbring, Scripps Institution of Oceanography, Dating Meltwater Pulses, Glacier Margin Change and Ice Shelf Collapse along the Periphery of East Antarctica
September 27: Till Wagner, Scripps Institution of Oceanography, Gone with the wind: Modeling iceberg drift and decay in modern and glacial climates
July 19: Natalie Freeman, University of Colorado, Boulder, Temporal variability in the Antarctic Polar Front (2002-2014)
June 1: Cooper Elsworth, Stanford University, Development of subglacial drainage induces rapid ice flow rearrangement in West Antarctica
May 18: Jeff Severinghaus, Scripps Institution of Oceanography, The Rapid Access Ice Drill (RAID): Getting to the bed in 2 days instead of 5 years
May 4: Matthew Siegfried, Scripps Institution of Oceanography, From WISSARD to SALSA: The role of subglacial lakes in West Antarctica through a multidisciplinary lens
April 28: Neil Foley, University of California, Santa Cruz, Airborne EM Resistivity Reveals Liquid Brines Beneath Permafrost and Glaciers in the Dry Valleys, Antarctica
April 20: Glenn McClure, SUNY Geneseo, Making the Numbers Sing-Whispers in the Ross Ice Shelf
April 6: Dan Lubin, Scripps Institution of Oceanography, The ARM West Antarctic Radiation Experiment
February 16: Alison Murray, Desert Research Institute, Big picture views from the very small: microbial community structure and adaptation to polar extreme environments
February 8: Alon Stern, GFDL-Princeton University, Ice shelf melting and breaking: implications for Antarctic Climate
January 21: Fiamma Straneo, Woods Hole Oceanographic Institution, Icebergs through the porthole: North Atlantic warming and the retreat of Greenland's glaciers
January 13: Helene Seroussi, NASA Jet Propulsion Laboratory, Understanding and modeling the ice sheets in a changing climate
2015
December 1: Dustin Schroeder, NASA Jet Propulsion Laboratory/Stanford University, Geophysical Radioglaciology: A Window into the Physical Processes of Marine Ice Sheets
November 17: Jennifer MacKinnon, Scripps Institution of Oceanography, ArcticMix Adventures
November 3: Till Wagner, Scripps Institution of Oceanography, On the Role of Buoyant Flexure in Glacier Calving
October 20: Jinbo Wang, Scripps Institution of Oceanography, Small plateau, big influence - a numerical study of the Kerguelen Plateau effect on the global ocean
October 6: Lynne Talley, Scripps Institution of Oceanography, Topographic controls on pathways of northern Deep Waters through the ACC: a framework for understanding changes in the Bellinghausen Sea warm waters, sea ice, and circulation
June 15: Alex Michaud, Montana State University, Relict marine influences on contemporary microbial processes in Subglacial Lake Whillans, West Antarctica
June 2: Jessica Millar Masich, Scripps Institution of Oceanography, Sources and sinks of momentum in the Southern Ocean State Estimate
May 27: Matthew Mazloff, Scripps Institution of Oceanography, State of the Climate: Southern Ocean Discussion
May 19: Jeff Severinghaus, Scripps Institution of Oceanography, New observations from the West Antarctic Ice Sheet Divide ice core suggest strong warming prior to atmospheric CO2 increase during the last deglaciation
May 7: Jill Mikucki, Middlebury College, The geophysicist and the microbe: An exploration of subglacial life
May 5: Anja Diez, Scripps Institution of Oceanography, Active and passive source seismics in Antarctica
April 23: Rebecca Jackson, MIT/WHOI, Ocean-glacier interactions in Greenland: fjord dynamics and heat transport
April 22: Anders Damsgaard, Aarhus University, Denmark, Numerical modeling of subglacial sediment and water: Viscous creep and plastic failure
2014
November 12: Eric Larour, NASA Jet Propulsion Laboratory, Data assimilation of NASA data using the Ice Sheet System Model
October 28: Till Wagner, Scripps Institution of Oceanography, Why idealized models find multiple sea ice states and comprehensive models do not
October 15: Oliver Marsh, Scripps Institution of Oceanography, Ice flexure in Antarctic grounding zones: a natural bending experiment
October 3: Hilmar Gudmundsson, British Antarctic Survey, Cambridge, UK, The sensitivity of Pine Island Glacier, West Antarctica, to ocean conditions
July 15: Marisa Montoya, Universidad Complutense de Madrid, Modeling glacial abrupt climate change
June 24: Ian Goodwin, Macquarie University, Sydney, Australia. What do Last Interglacial Coastlines tell us about Antarctic Ice Sheet instability and the external drivers?
June 10: Sasha Carter, Scripps Institution of Oceanography. On siphons and sediments: The meaning of subglacial lake drainage beneath fast flowing ice
May 13: Till Wagner, Scripps Institution of Oceanography. The ‘footloose’ mechanism: iceberg decay from hydrostatic stresses
April 29: Bernhard Bereiter, Scripps Institution of Oceanography. Archive Alterations due to Air Diffusion in Polar Ice Cores
April 15: Morgan Martinez, University of California, San Diego. Cosmochemistry – on Ice! Lessons learned studying and searching for Antarctic meteorites
March 31: Isabella Velicogna, University of California, Irvine. Satellite time variable gravity study of ice sheets mass balance and regional sea level
March 18: Christopher Borstad, NASA Jet Propulsion Laboratory. The impact of mechanical weakening of ice shelves on the stability of a marine ice sheet
February 25: Camilla Svensen, The Arctic University of Norway. Plankton research and Norwegian-US collaboration in the European Arctic
February 18: Alexander Robel, Harvard University. Ice streams: dynamics, variability and connections to climate
February 4: Alexander E. Thornton, Scripps Institution of Oceanography. Developing an Oil Spill Response Network in the Southern Ocean
2013
November 5: Mattias Cape, Scripps Institution of Oceanography. Polynya dynamics in the Larsen A and B embayments following ice shelf collapse
October 21: Slawek Tulaczyk, University of California, Santa Cruz. Rheology of a Glacier Fault: Is Rate-and-State Friction Better Than Glaciological Sliding Laws
October 16: Ted Scambos, National Snow and Ice Data Center. Megadunes and Wind Glaze: unique snow features of the East Antarctic Plateau
October 3: Hubert Staudigel, Scripps Institution of Oceanography. Exploring Life under the Ice of Erebus Volcano, Antarctica
August 6: Andrew Shepherd, University of Leeds. CRYOSAT: Results and Applications 3-years in Flight
June 18: James Day, Scripps Institution of Oceanography, Antarctic meteorites and the Solar System
June 4: Matthew Siegfried, Scripps Institution of Oceanography, WISSARD: Progress, Pictures, and Prospects
May 21: Laurence Padman, Earth and Space Research, Ice-2-O-A: Interactions between ice shelves, sea ice, oceans and atmosphere in Antarctica
May 14: Marilyn Raphael, University of California, Los Angeles. Relationships Between the Large-scale High-Latitude Atmospheric Circulation and Antarctic Climate
April 22: Ginny Catania, University of Texas, Austin. Contrasting Subglacial Hydrologic Conditions in Greenland
April 9: David Victor, University of California, San Diego. Investing in Arctic Oil and Gas: The Commercial Realities
March 26: Shad O'Neel, USGS Alaska. More than just seal level rise: assessing the role of glaciers in the coastal ecosystems of Alaska
March 19: Kristina Pistone, Scripps Institution of Oceanography. Observational determination of the planetary darkening effects of the vanishing Arctic sea ice
February 26: Beata Csatho, University at Buffalo. Evolution of Greenland outlet glacier mass balance from combined altimetry and climate record
February 12: Tonia Astrid Capuano, Scripps Institution of Oceaongraphy. Wind control on the Antarctic Bottom Water export rate in the Weddell Gyre
January 22: Lynne Talley, Scripps Institution of Oceanography. Closure of the global overturning circulation through the Souther, Indian and Pacific Oceans.
January 8: Lisa Bloom. Contemporary Art and Climate Change: Landscapes of Disappearance at the Poles
2012
December 11: Christo Buizert, Oregon State University. Radiometric dating of ancient ice using krypton-81 in trapped air
November 27: Magdelena Carranza, Scripps Institution of Oceanography. Physical processes governing summer Chl-a in the Southern Ocean
November 13: Jennifer S. Haase, Scripps Institution of Oceanography. Proof-of-concept atmospheric profiling with GPS radio occultation from stratospheric balloons in the Antarctic
October 30: Jeff Severinghaus, Scripps Institution of Oceanography. First results from the West Antarctic Ice Sheet (WAIS) Divide ice core: Greenhouse gases at unprecendented resolution over the past 62,000 years
October 22: John Wahr, University of Colorado, Boulder. Using time-variable gravity from the GRACE satellite mission to study the Earth
October 16: Maria Vernet, Scripps Institution of Oceanography. LARISSA, the LARsen Ice Shelf System: integrating biology, geology and glaciology to understand abrupt environmental changes in coastal Antarctica
September 18: Fernando Paolo, Scripps Institution of Oceanography. Interannual and Decadal Variability of Antarctic Ice Shelf Elevations from Multi-Mission Satellite Radar Altimetry
July 24: Manfredi Manizza, Scripps Institution of Oceanography. A Carbon Cycle model for the Arctic Ocean: Construction and Applications
July 10: Wolf Berger, Scripps Institution of Oceanography. Milankovitch tuning and the search for maximum rate for sea-level rise
June 26: Matthew Mazloff, Scripps Institution of Oceanography. The southern Southern Ocean
2017
January 17: Laura Stevens, Woods Hole Oceanographic Institution, Influence of meltwater on Greenland Ice Sheet dynamics: rapid supraglacial lake drainages to inter-annual ice-sheet flow
February 14: Yuzhen Yan, Princeton University, Searching for the oldest ice in Allan Hills Blue Ice Areas, East Antarctica
February 21: Wally Broecker, Columbia University, What drove CO2 down during each 100 kyr cycle?
March 14: Manfredi Manizza, Scripps Institution of Oceanography, Evaluating ocean physical-biogeochemical models at high latitudes using multiple atmospheric gases.
April 4: Derek Mueller, Carleton University, Arctic ice shelves, epishelf lakes and basal channels
2016
November 1: Veronica Tamsitt, Scripps Institution of Oceanography, 3-dimensional pathways of deep water upwelling in the Southern Ocean
October 11: Jane Willenbring, Scripps Institution of Oceanography, Dating Meltwater Pulses, Glacier Margin Change and Ice Shelf Collapse along the Periphery of East Antarctica
September 27: Till Wagner, Scripps Institution of Oceanography, Gone with the wind: Modeling iceberg drift and decay in modern and glacial climates
July 19: Natalie Freeman, University of Colorado, Boulder, Temporal variability in the Antarctic Polar Front (2002-2014)
June 1: Cooper Elsworth, Stanford University, Development of subglacial drainage induces rapid ice flow rearrangement in West Antarctica
May 18: Jeff Severinghaus, Scripps Institution of Oceanography, The Rapid Access Ice Drill (RAID): Getting to the bed in 2 days instead of 5 years
May 4: Matthew Siegfried, Scripps Institution of Oceanography, From WISSARD to SALSA: The role of subglacial lakes in West Antarctica through a multidisciplinary lens
April 28: Neil Foley, University of California, Santa Cruz, Airborne EM Resistivity Reveals Liquid Brines Beneath Permafrost and Glaciers in the Dry Valleys, Antarctica
April 20: Glenn McClure, SUNY Geneseo, Making the Numbers Sing-Whispers in the Ross Ice Shelf
April 6: Dan Lubin, Scripps Institution of Oceanography, The ARM West Antarctic Radiation Experiment
February 16: Alison Murray, Desert Research Institute, Big picture views from the very small: microbial community structure and adaptation to polar extreme environments
February 8: Alon Stern, GFDL-Princeton University, Ice shelf melting and breaking: implications for Antarctic Climate
January 21: Fiamma Straneo, Woods Hole Oceanographic Institution, Icebergs through the porthole: North Atlantic warming and the retreat of Greenland's glaciers
January 13: Helene Seroussi, NASA Jet Propulsion Laboratory, Understanding and modeling the ice sheets in a changing climate
2015
December 1: Dustin Schroeder, NASA Jet Propulsion Laboratory/Stanford University, Geophysical Radioglaciology: A Window into the Physical Processes of Marine Ice Sheets
November 17: Jennifer MacKinnon, Scripps Institution of Oceanography, ArcticMix Adventures
November 3: Till Wagner, Scripps Institution of Oceanography, On the Role of Buoyant Flexure in Glacier Calving
October 20: Jinbo Wang, Scripps Institution of Oceanography, Small plateau, big influence - a numerical study of the Kerguelen Plateau effect on the global ocean
October 6: Lynne Talley, Scripps Institution of Oceanography, Topographic controls on pathways of northern Deep Waters through the ACC: a framework for understanding changes in the Bellinghausen Sea warm waters, sea ice, and circulation
June 15: Alex Michaud, Montana State University, Relict marine influences on contemporary microbial processes in Subglacial Lake Whillans, West Antarctica
June 2: Jessica Millar Masich, Scripps Institution of Oceanography, Sources and sinks of momentum in the Southern Ocean State Estimate
May 27: Matthew Mazloff, Scripps Institution of Oceanography, State of the Climate: Southern Ocean Discussion
May 19: Jeff Severinghaus, Scripps Institution of Oceanography, New observations from the West Antarctic Ice Sheet Divide ice core suggest strong warming prior to atmospheric CO2 increase during the last deglaciation
May 7: Jill Mikucki, Middlebury College, The geophysicist and the microbe: An exploration of subglacial life
May 5: Anja Diez, Scripps Institution of Oceanography, Active and passive source seismics in Antarctica
April 23: Rebecca Jackson, MIT/WHOI, Ocean-glacier interactions in Greenland: fjord dynamics and heat transport
April 22: Anders Damsgaard, Aarhus University, Denmark, Numerical modeling of subglacial sediment and water: Viscous creep and plastic failure
2014
November 12: Eric Larour, NASA Jet Propulsion Laboratory, Data assimilation of NASA data using the Ice Sheet System Model
October 28: Till Wagner, Scripps Institution of Oceanography, Why idealized models find multiple sea ice states and comprehensive models do not
October 15: Oliver Marsh, Scripps Institution of Oceanography, Ice flexure in Antarctic grounding zones: a natural bending experiment
October 3: Hilmar Gudmundsson, British Antarctic Survey, Cambridge, UK, The sensitivity of Pine Island Glacier, West Antarctica, to ocean conditions
July 15: Marisa Montoya, Universidad Complutense de Madrid, Modeling glacial abrupt climate change
June 24: Ian Goodwin, Macquarie University, Sydney, Australia. What do Last Interglacial Coastlines tell us about Antarctic Ice Sheet instability and the external drivers?
June 10: Sasha Carter, Scripps Institution of Oceanography. On siphons and sediments: The meaning of subglacial lake drainage beneath fast flowing ice
May 13: Till Wagner, Scripps Institution of Oceanography. The ‘footloose’ mechanism: iceberg decay from hydrostatic stresses
April 29: Bernhard Bereiter, Scripps Institution of Oceanography. Archive Alterations due to Air Diffusion in Polar Ice Cores
April 15: Morgan Martinez, University of California, San Diego. Cosmochemistry – on Ice! Lessons learned studying and searching for Antarctic meteorites
March 31: Isabella Velicogna, University of California, Irvine. Satellite time variable gravity study of ice sheets mass balance and regional sea level
March 18: Christopher Borstad, NASA Jet Propulsion Laboratory. The impact of mechanical weakening of ice shelves on the stability of a marine ice sheet
February 25: Camilla Svensen, The Arctic University of Norway. Plankton research and Norwegian-US collaboration in the European Arctic
February 18: Alexander Robel, Harvard University. Ice streams: dynamics, variability and connections to climate
February 4: Alexander E. Thornton, Scripps Institution of Oceanography. Developing an Oil Spill Response Network in the Southern Ocean
2013
November 5: Mattias Cape, Scripps Institution of Oceanography. Polynya dynamics in the Larsen A and B embayments following ice shelf collapse
October 21: Slawek Tulaczyk, University of California, Santa Cruz. Rheology of a Glacier Fault: Is Rate-and-State Friction Better Than Glaciological Sliding Laws
October 16: Ted Scambos, National Snow and Ice Data Center. Megadunes and Wind Glaze: unique snow features of the East Antarctic Plateau
October 3: Hubert Staudigel, Scripps Institution of Oceanography. Exploring Life under the Ice of Erebus Volcano, Antarctica
August 6: Andrew Shepherd, University of Leeds. CRYOSAT: Results and Applications 3-years in Flight
June 18: James Day, Scripps Institution of Oceanography, Antarctic meteorites and the Solar System
June 4: Matthew Siegfried, Scripps Institution of Oceanography, WISSARD: Progress, Pictures, and Prospects
May 21: Laurence Padman, Earth and Space Research, Ice-2-O-A: Interactions between ice shelves, sea ice, oceans and atmosphere in Antarctica
May 14: Marilyn Raphael, University of California, Los Angeles. Relationships Between the Large-scale High-Latitude Atmospheric Circulation and Antarctic Climate
April 22: Ginny Catania, University of Texas, Austin. Contrasting Subglacial Hydrologic Conditions in Greenland
April 9: David Victor, University of California, San Diego. Investing in Arctic Oil and Gas: The Commercial Realities
March 26: Shad O'Neel, USGS Alaska. More than just seal level rise: assessing the role of glaciers in the coastal ecosystems of Alaska
March 19: Kristina Pistone, Scripps Institution of Oceanography. Observational determination of the planetary darkening effects of the vanishing Arctic sea ice
February 26: Beata Csatho, University at Buffalo. Evolution of Greenland outlet glacier mass balance from combined altimetry and climate record
February 12: Tonia Astrid Capuano, Scripps Institution of Oceaongraphy. Wind control on the Antarctic Bottom Water export rate in the Weddell Gyre
January 22: Lynne Talley, Scripps Institution of Oceanography. Closure of the global overturning circulation through the Souther, Indian and Pacific Oceans.
January 8: Lisa Bloom. Contemporary Art and Climate Change: Landscapes of Disappearance at the Poles
2012
December 11: Christo Buizert, Oregon State University. Radiometric dating of ancient ice using krypton-81 in trapped air
November 27: Magdelena Carranza, Scripps Institution of Oceanography. Physical processes governing summer Chl-a in the Southern Ocean
November 13: Jennifer S. Haase, Scripps Institution of Oceanography. Proof-of-concept atmospheric profiling with GPS radio occultation from stratospheric balloons in the Antarctic
October 30: Jeff Severinghaus, Scripps Institution of Oceanography. First results from the West Antarctic Ice Sheet (WAIS) Divide ice core: Greenhouse gases at unprecendented resolution over the past 62,000 years
October 22: John Wahr, University of Colorado, Boulder. Using time-variable gravity from the GRACE satellite mission to study the Earth
October 16: Maria Vernet, Scripps Institution of Oceanography. LARISSA, the LARsen Ice Shelf System: integrating biology, geology and glaciology to understand abrupt environmental changes in coastal Antarctica
September 18: Fernando Paolo, Scripps Institution of Oceanography. Interannual and Decadal Variability of Antarctic Ice Shelf Elevations from Multi-Mission Satellite Radar Altimetry
July 24: Manfredi Manizza, Scripps Institution of Oceanography. A Carbon Cycle model for the Arctic Ocean: Construction and Applications
July 10: Wolf Berger, Scripps Institution of Oceanography. Milankovitch tuning and the search for maximum rate for sea-level rise
June 26: Matthew Mazloff, Scripps Institution of Oceanography. The southern Southern Ocean