%0 Journal Article %J J. Geophys. Res. %D 2013 %T Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica %A Nowicki, Sophie %A Robert A. Bindschadler %A Abe-Ouchi, Ayako %A Andy Aschwanden %A E. Bueler %A Choi, Hyeungu %A Fastook, Jim %A Granzow, Glen %A Greve, Ralf %A Gutowski, Gail %A Herzfeld, Ute %A Jackson, Charles %A Jesse V Johnson %A Constantine Khroulev %A Larour, Eric %A Anders Levermann %A Lipscomb, William H. %A Maria A. Martin %A Morlighem, Mathieu %A Parizek, Byron R. %A David Pollard %A Stephen F. Price %A Ren, Diandong %A Eric Rignot %A Fuyuki Saito %A Tatsuru Sato %A Seddik, Hakime %A Seroussi, Helene %A Takahashi, Kunio %A Walker, Ryan %A Wang, Wei Li %B J. Geophys. Res. %V 118 %P 1002–1024 %G eng %U http://doi.wiley.com/10.1002/jgrf.20081 %R 10.1002/jgrf.20081 %0 Journal Article %J J. Geophys. Res. %D 2013 %T Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project II: Greenland %A Nowicki, Sophie %A Robert A. Bindschadler %A Abe-Ouchi, Ayako %A Andy Aschwanden %A E. Bueler %A Choi, Hyeungu %A Fastook, Jim %A Granzow, Glen %A Greve, Ralf %A Gutowski, Gail %A Herzfeld, Ute %A Jackson, Charles %A Jesse V Johnson %A Constantine Khroulev %A Larour, Eric %A Anders Levermann %A Lipscomb, William H. %A Maria A. Martin %A Morlighem, Mathieu %A Parizek, Byron R. %A David Pollard %A Stephen F. Price %A Ren, Diandong %A Eric Rignot %A Fuyuki Saito %A Tatsuru Sato %A Seddik, Hakime %A Seroussi, Helene %A Takahashi, Kunio %A Walker, Ryan %A Wang, Wei Li %B J. Geophys. Res. %V 118 %P 1025–1044 %8 jun %G eng %U http://doi.wiley.com/10.1002/jgrf.20076 %R 10.1002/jgrf.20076 %0 Journal Article %J Journal of Glaciology %D 2010 %T Results from the Ice-Sheet Model Intercomparison ProjectHeinrich Event INtercOmparison (ISMIP HEINO) %A Calov, Reinhard %A Greve, Ralf %A Abe-Ouchi, Ayako %A E. Bueler %A Huybrechts, Philippe %A Jesse V Johnson %A Frank Pattyn %A David Pollard %A Ritz, Catherine %A Fuyuki Saito %A Tarasov, Lev %X Results from the Heinrich Event INtercOmparison (HEINO) topic of the Ice-Sheet Model Intercomparison Project (ISMIP) are presented. ISMIP HEINO was designed to explore internal large-scale ice-sheet instabilities in different contemporary ice-sheet models. These instabilities are of interest because they are a possible cause of Heinrich events. A simplified geometry experiment reproduces the main characteristics of the Laurentide ice sheet, including the sedimented region over Hudson Bay and Hudson Strait. The model experiments include a standard run plus seven variations. Nine dynamic/thermodynamic ice-sheet models were investigated; one of these models contains a combination of the shallow-shelf (SSA) and shallow-ice approximation (SIA), while the remaining eight models are of SIA type only. Seven models, including the SIA-SSA model, exhibit oscillatory surges with a period of ∼1000 years for a broad range of parameters, while two models remain in a permanent state of streaming for most parameter settings. In a number of models, the oscillations disappear for high surface temperatures, strong snowfall and small sediment sliding parameters. In turn, low surface temperatures and low snowfall are favourable for the ice-surge cycles. We conclude that further improvement of ice-sheet models is crucial for adequate, robust simulations of cyclic large-scale instabilities. %B Journal of Glaciology %V 56 %P 371-383 %G eng %U http://www.ingentaconnect.com/content/igsoc/jog/2010/00000056/00000197/art00001 %R doi:10.3189/002214310792447789 %0 Journal Article %J The Cryosphere %D 2008 %T Benchmark experiments for higher-order and full Stokes ice sheet models (ISMIP-HOM) %A Frank Pattyn %A Perichon, L. %A Andy Aschwanden %A Breuer, B. %A de Smedt, B. %A Gagliardini, O. %A Gudmundsson, G. H. %A Hindmarsh, R. C. A. %A Hubbard, A. L. %A Jesse V Johnson %A Kleiner, T. %A Konovalov, Y. %A Martin, C. %A Payne, A. J. %A David Pollard %A Stephen F. Price %A M Rückamp %A Fuyuki Saito %A Souček, O. %A Sugiyama, S. %A Zwinger, T. %B The Cryosphere %V 2 %P 95–108 %G eng