PROGRAM IGS SYMPOSIUM, FAIRBANKS, 25-29 June, 2012 Version 15 June 2012 Time Presenter Monday morning Observations I (Chair: Garry Clarke) 9:00 Welcome MacAyeal/Hock 9:15 63A521 Our Communal Response to Warming: Are We on tHe RigHt Track? (INVITED) Robert Bindschadler 9:45 63A328 Time-varying mass changes of the Greenland and Antarctic ice sheets from radar and laser altimetry Ruud Hurkmans 10:00 63A397 High space and time resolution radar altimetry: a powerful tool for ice sheet volume change study. Thomas Flament 10:15 63A459 Greenland outlet glacier velocities during 2000-2010 Twila Moon 10:30 - 11:00 COFFEE BREAK Observations I (Chair: Will Harrison) 11:00 63A321 Two decades of dynamic stability before retreat for Kangerdlugssuaq, Helheim and other Greenland glaciers Suzanne Bevan 11:15 63A274 Outlet glacier response to meteorological and oceanic forcing, Jakobshavn Isbræ, Greenland David Podrasky 11:30 63A375 Stability Assessment of Antarctic Ice Shelves with respect to Melt-induced Disintegration Ted Scambos 11:45 63A403 Localised basal melt inferred from the radar-derived internal structure of Pine Island Glacier, West Antarctica Edward King 12:00 63A462 Regional Measurements of Snow Accumulation on Ice Sheets from Ultra-Wideband Airborne Radars David Braaten Wind induced accumulation hiatus over East Antarctica: Implications for continent-wide surface mass 12:15 63A374 Indrani Das balance 12:30 - 14:00 LUNCH Monday afternoon Ice dynamics (Chair: Andrew Macintosh) 14:00 63A501 Inland acceleration of the Greenland Ice Sheet Martin Truffer 14:15 63A489 Accelerated Dynamic Changes of the North and Northwestern Greenland Ice Sheet Greg Babonis 14:30 63A409 Ice dynamic response to slow and fast supraglacial lake drainage in Greenland Marco Tedesco 14:45 63A189 A geophysical characterization of Whillans Ice Stream Robert Jacobel 15:00 63A442 Short-time-scale variations in outlet glacier velocity and strain fields due to terminus ice loss Meredith Nettles Widespread decadal-scale decrease of land-terminating glacier speed revealed using repeat optical satellite 15:15 63A310 Torborg Heid images 15:30 - 16:00 COFFEE BREAK Observations II and Impacts of Glacier Change (Chair: Francesca Pelliciotti) Ice-volume changes, bias-correction of mass-balance measurements and changes in sub-glacial water bodies 16:00 63A422 Tómas Jóhannesson derived by LiDAR-mapping of the surface of Icelandic ice caps 16:25 63A289 Areal changes of Southern Patagonia Icefield and nearby climate over the past 67 years Pedro Skvarca 16:30 63A302 A century of ice retreat on Kilimanjaro: The mapping reloaded Nicolas Cullen Coupling Field and Remotely-Sensed Data for Validation of a Distributed Hydrological and Glacier Model: 16:45 63A393 Patrick Burns Implications for Water Resources in the Cordillera Blanca, Peru Modeling the glacio-hydrological response of a Himalayan watershed to climate change, using a physically- 17:00 63A246 Silvan Ragettli oriented fully distributed model: sources of model uncertainty 17:15 63A509 Biogeochemistry of glacial runoff along the Gulf of Alaska Eran Hood 17:45 Planning Your Future in Polar & Cryospheric Research - an APECS Career Development Discussion Panel Tuesday morning Glacier mass balance - climate interaction (Chair: Bob Bindschaedler) 9:00 63A286 Glacier mass balance goes global (INVITED) Roger Braithwaite 9:30 63A470 Estimates of global-average glacier mass balance J. Graham Cogley 9:45 63A359 GRACE mass balance estimates for all the Earth's ice-covered regions John Wahr An investigation of the spatial distribution of mass balance signals extracted from high-resolution GRACE 10:00 63A381 Anthony Arendt mascon simulations 10:15 63A344 Correction factors for extrapolating measured mass balances to all glaciers in Alaska Raymond Le Bris 10:30 - 11:00 COFFEE BREAK Glacier mass balance - climate interaction (Chair: Jon-Ove Hagen) Suitability of a constant air temperature lapse rate over an Alpine glacier - Testing the Greuell and Böhm 11:00 63A477 Lene Petersen model as an alternative 11:15 63A369 Evaluating the performance of an energy balance and snow redistribution model Alice Doughty 11:30 63A280 The role of subsurface heat exchange: energy partitioning at Austfonna ice cap, Svalbard, over 2004-2008 Torbjoern I. Oestby Mapping supraglacial debris thickness on mountain glaciers using satellite data: Validation of a new, 11:45 63A465 Francesca Pelliciotti physically-based method Decelerated mass loss of Hurd and Johnsons glaciers, Livingston Island, Antarctic Peninsula, in spite of 12:00 63A268 Francisco J. Navarro continued regional warming Near surface water layer within the Greenland Ice Sheet found during winter conditions from firn cores, 12:15 63A361 Richard Forster ground based radar, and NASA airborne radar 12:30 - 14:00 LUNCH Tuesday afternoon Subglacial processes I (Chair: Andres Rivera) 14:00 63A306 Short term dynamics of the Greenland Ice Sheet observed with sensors in deep boreholes Martin Lüthi 14:15 63A331 Modelling the coupling of flood discharge and glacier flow during jökulhlaups Jonathan Kingslake Surge initiation or meltwater induced acceleration? Observations of a marine-terminating outlet glacier of 14:30 63A279 Thorben Dunse Austfonna, Svalbard. 14:45 63A428 The effects of jökulhlaups on glacier motion. Several case studies from Vatnajökull ice cap. Eyjólfur Magnússon 15:00 POSTER SESSION I (including coffee/beer) 17:30 SELIGMAN CRYSTAL AWARD CEREMONY FOR DR. ALMUT IKEN 19:00 Barbeque in front of Museum of the North (incl. entrance to the Museum) Wednesday morning Glacer mass balance - past and future (Chair: Jo Jacka) 9:00 63A412 Glacier Changes in nortHern Canada since tHe 1957-58 IGY (INVITED) Martin Sharp 9:30 63A282 On the effect of climate variability on mountain glaciers Daniel Farinotti 9:45 63A272 What caused the late 20th century advance of New Zealand glaciers? Andrew Mackintosh 10:00 63A008 Glacier Mass balance variations in Tien shan, Cetral Asia, during the 2nd half of the 20th century Shiyin Liu 10:15 63A270 Glacier geometries and their usability for climate reconstruction Alexander Jarosch 10:30 - 11:00 COFFEE BREAK Ice volume and thickness distribution of all mountain glaciers around the globe - a new phsically-based 11:00 63A420 Matthias Huss estimation method 11:15 63A267 On the accuracy of direct and indirect mass balance measurements Andrea Fischer 11:30 63A269 A global estimate of the mass balance of mountain glaciers from 1900 - 2300 Ben Marzeion 11:45 63A327 21st century volume projections for 80 glaciers in different climatic regions Rianne Giesen Regional and global projections of glacier melt in response to climate scenarios from GCMs prepared for 12:00 63A367 Valentina Radic IPCC AR5 12:15 63A334 The 21st century deglaciation of western Canada Garry Clarke Wednesday afternoon 12:45 Excursion (including bag lunches; dinner at last excursion site; return to Fairbanks around 9 pm) Thursday morning Glacier-ocean interactions I (Chair: Martin Lüthi) 9:00 63A520 Columbia Glacier in 2012: Present and Future (INVITED) W. Tad Pfeffer 9:30 63A479 Does calving matter? Evidence for significant submarine melt at the terminus of Yahtse Glacier. Timothy Bartholomaus 9:45 63A447 Observations of a Greenland Tidewater Outlet Glacier Behavior Using a Ground Based RADAR Interferometer Ryan Cassotto 10:00 63A433 Controls on calving at Kangerdlugssuaq and Helheim Glaciers, East Greenland Adrian Luckman 10:15 63A410 Dynamic and thermodynamic regimes of ice shelves in cold and warm ocean environments Olga Sergienko 10:30 - 11:00 COFFEE BREAK 11:00 63A499 Meltwater plumes on tidewater glaciers: constraining models with observations Martin O'Leary 11:15 63A503 Antarctic instability and possible associated contribution to sea-level rise Gael Durand 11:30 ANNUAL GENERAL MEETING 12:30 - 14:00 LUNCH Thursday afternoon Ice sheet modeling I (Chair: Gudfinna Adalgeirsdottir) 14:00 63A301 Development and Applications of the Community Ice Sheet Model Stephen Price 14:15 63A085 Resolution of ice streams and outlet glaciers in large-scale simulations of the Greenland ice sheet Ralf Greve 14:30 63A444 Better subglacial hydrology into PISM Ed Bueler 14:45 63A423 Elmer/Ice: a new-generation ice-sheet model to infer ice-sheet contribution to sea level rise Lionel Favier Advanced ice sheet modeling: Scalable parallel adaptive full Stokes solver, inversion for basal sliding and 15:00 63A515 Tobin Isaac rheological parameters, and uncertainty quantification 15:15 63A498 A parallel unstructured implicit 3D polythermal model for outlet glaciers Jed Brown 15:30 POSTER SESSION II (including coffee/beer) 18:30 BANQUET ON RIVER CRUISE Friday morning Subglacial processes II (Chair: Gwenn Flowers) 9:00 63A450 Hydraulic controls on glacier and ice sheet flow (INVITED) Christian Schoof 9:30 63A481 Gearshifts in subglacial hydrology: Planform development of distributed, sheet-like water systems Timothy Creyts 9:45 63A259 Basal melting of temperate tidewater glaciers: fiction of friction? David Alexander Grounding Zone Structure and Bathymetry from Active Source Seismic Surveying, Whillans Ice Stream, West 10:00 63A299 Huw Horgan Antarctica 10:15 Video poster prize presentation 10:30 - 11:00 COFFEE BREAK Glacier-ocean interactions II (Chair: Bob Jacobel) 11:00 63A288 Jamming of Ice Melange: Using Particle Rafts to Model Ice Melange Dynamics Chin-Chang Kuo 11:15 63A303 A new perspective on glacial earthquake source mechanics Jason Amundson 11:30 63A391 Estimates of marine tidewater terminus melting in Svalbard Ross Powell