@article {333, title = {The Larsen Ice Shelf System, Antarctica (LARISSA): Polar Systems Bound Together, Changing Fast}, journal = {GSA Today}, volume = {29}, year = {2019}, pages = {4{\textendash}10}, abstract = {Climatic, cryospheric, and biologic changes taking place in the northern Antarctic Peninsula provide examples for how ongoing systemic change may pro- gress through the entire Antarctic system. A large, interdisciplinary research project focused on the Larsen Ice Shelf system, synthesized here, has documented dramatic ice cover, oceanographic, and ecosystem changes in the Antarctic Peninsula during the Holocene and the present period of rapid regional warming. The responsive- ness of the region results from its position in the climate and ocean system, in which a narrow continental block extends across zonal atmospheric and ocean flow, creating high snow accumulation, strong gradients and gyres, dynamic oceanography, outlet glaciers feeding into many fjords and bays having steep topography, and a continental shelf that contains many glacially carved troughs separated by areas of glacial sedi- ment accumulation. The microcosm of the northern Antarctic Peninsula has a ten- dency to change rapidly{\textemdash}rapid relative not just to Antarctica{\textquoteright}s mainland but compared to the rest of the planet as well{\textemdash}and it is generally warmer than the rest of Antarctica. Both its Holocene and modern glaciological retreats offer a picture of how larger areas of Antarctica farther south might change under future warming.}, issn = {10525173}, doi = {10.1130/gsatg382a.1}, author = {Wellner, Julia and Scambos, Ted and Domack, Eugene and Vernet, Maria and Leventer, Amy and Balco, Greg and Brachfeld, Stefanie and Cape, Mattias and Huber, Bruce and Ishman, Scott and McCormick, Michael and Mosley-Thompson, Ellen and Pettit, Erin and Smith, Craig and Truffer, Martin and Van Dover, Cindy and Yoo, Kyu-Cheul} } @article {59, title = {Gravity and uplift rates observed in southeast Alaska and their comparison with GIA model predictions}, journal = {Journal of Geophysical Research}, volume = {117}, year = {2012}, pages = {B01401}, author = {Tatsuru Sato and Miura, S. and Sun, W. and Sugano, T. and Jeffrey T. Freymueller and Chris F. Larsen and Ohta, Y. and Fujimoto, H. and Inazu, D. and Roman J. Motyka} } @article {45, title = {Gravity measurements in southeastern Alaska reveal negative gravity rate of change caused by glacial isostatic adjustment}, journal = {Journal of Geophysical Research}, volume = {115}, year = {2010}, pages = {B12406}, doi = {10.1029/2009JB007194}, author = {Sun, W. and Miura, S. and Tatsuru Sato and Sugano, T. and Jeffrey T. Freymueller and Kaufman, M. and Chris F. Larsen and Cross, R. and Inazu, D.} } @article {37, title = {Accurate ocean tide modeling in southeast Alaska and large tidal dissipation around Glacier Bay}, journal = {Journal of oceanography}, volume = {65}, year = {2009}, pages = {335{\textendash}347}, author = {Inazu, D. and Tatsuru Sato and Miura, S. and Ohta, Y. and Nakamura, K. and Fujimoto, H. and Chris F. Larsen and Higuchi, T.} } @article {369, title = {Mechanisms of fast flow in Jakobshavns Isbr{\ae}, Greenland, Part III: Measurements of ice deformation, temperature and cross-borehole conductivity in boreholes to the bedrock}, journal = {J. Glaciol.}, volume = {48}, year = {2002}, pages = {369{\textendash}385}, url = {http://openurl.ingenta.com/content/xref?genre=article{\&}issn=0022-1430{\&}volume=48{\&}issue=162{\&}spage=369}, author = {L{\"u}thi, Martin P. and Funk, M. and Iken, A. and Truffer, M. and Gogineni, S.} } @article {375, title = {The sliding velocity over a sinusoidal bed at high water pressure}, journal = {Journal of Glaciology}, volume = {44}, year = {1998}, pages = {379{\textendash}382}, doi = {10.3189/S0022143000002707}, author = {Truffer, Martin and Iken, Almut} } @article {374, title = {The relationship between subglacial water pressure and velocity of Findelengletscher, Switzerland, during its advance and retreat} volume = {43}, journal = {Journal of Glaciology}, year = {1997}, pages = {328{\textendash}338}, abstract = {Findelengletscher, Switzerland, advanced about 250 m between 1979$\backslash$nand 1985, and retreated thereafter. Subglacial water pressure, surface$\backslash$nvelocity and surface strain rate were determined at several sites.$\backslash$nThe measurements were made early in the melt seasons of 1980, 1982,$\backslash$n1985 and 1994 and in the autumn of 1983 and the winter of 1984. Changes$\backslash$nof surface geometry were assessed from aerial photographs. The estimated$\backslash$nbasal shear stress changed little between 1982 and 1994. Nevertheless,$\backslash$nlarge changes in the relationship of subglacial water pressure and$\backslash$nsurface velocity were observed, which cannot be reconciled with the$\backslash$nmost commonly used sliding law unless it is modified substantially$\backslash$nConsideration of possible reasons indicates that a change in the$\backslash$nsubglacial drainage system occurred, probably involving a change$\backslash$nin the degree of cavity interconnection. Isolated cavities damp the$\backslash$nvariations in sliding velocity that normally result from changes$\backslash$nin water pressure, because the pressure in isolated cavities decreases$\backslash$nas the sliding speed increases. In contrast, by transmitting water-pressure$\backslash$nfluctuations to a larger area of the bed, interconnected cavities$\backslash$namplify the effect of water-pressure fluctuations on sliding speed.$\backslash$nThus, we suggest that an observed decrease in velocity (for a given$\backslash$nwater pressure) between 1982 and 1994 was a consequence of a decrease$\backslash$nin the interconnectedness of the subglacial cavity system.}, isbn = {0022-1430}, issn = {00221430}, doi = {10.1017/CBO9781107415324.004}, author = {Iken, A. and Truffer, M.} }