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The Dynamics and Mass Budget of Arctic Glaciers Extended Abstracts Workshop and GLACIODYN The Dynamics and Mass Budget of Arctic Glaciers Extended abstracts Workshop and GLACIODYN (IPY) meeting, 15 - 18 January 2007, Pontresina (Switzerland) IASCIASC WorkingWorking groupgroup onon ArcticArctic GlaciologyGlaciology Institute for Marine and Atmospheric Research Utrecht Utrecht University, The Netherlands The Dynamics and Mass Budget of Arctic Glaciers Extended abstracts Workshop and GLACIODYN (IPY) Meeting, 15 - 18 January 2007, Pontresina (Switzerland) IASC Working Group on Arctic Glaciology Organized by J. Oerlemans and C.H. Tijm-Reijmer Institute for Marine and Atmospheric Research Utrecht Utrecht University, The Netherlands 1 2 CONTENTS Preface..............................................................................................7 Johannes Oerlemans Program ............................................................................................9 List of participants.........................................................................13 Abstracts ........................................................................................17 20th Century evolution and modelling of Hoffellsjökull, Southeast Iceland .........................................................................................18 Gufinna Aalgeirsdóttir, H. Björnsson, F. Pálsson and S.P. Sigursson The surface energy balance of Storbreen....................................20 Liss M. Andreassen, M.R. van den Broeke, J. Oerlemans Topographic controls on the spatial variability of glacier surface energy balance ............................................................................23 Neil Arnold, G. Rees, A. Hodson and J. Kohler Predicting the surface mass balance of the Greenland ice sheet: Importance of refreezing..............................................................27 Jonathan Bamber, M. Bougamont, R. Gladstone, J. Griggs, T. Payne, I. Rutt, E. Hanna, J. Ridley and W. Greuell Geodetic observations of Svalbard land ice mass balance: resutls and plans for IPY .........................................................................29 Jonathan Bamber, T. Murray, T. James, J Rougier, B. Krabill, J. Kohler, J.O. Hagen and P. Gogineni Impact of surface meltwater production on Greenland ice sheet outlet glacier flow .........................................................................31 Jason E. Box, L. Yang and A. Herrington Meltwater Input, Flow Velocities and Calving of Arctic Glaciers: Nordenskiöldbreen, Svalbard.......................................................32 Marianne A.G. den Ouden, J. Oerlemans, C.H. Tijm-Reijmer and V. Pohjola Snow accumulation on Austfonna, northeastern Svalbard, derived by ground-penetrating radar ........................................................34 Thorben Dunse, T.V. Schuler, A. Taurisano, J.O. Hagen, K. Melvold, T. Eiken and G. Moholdt Glacier monitoring approach suggested from analysis mass balance observations...................................................................37 Mark Dyurgerov An investigation of the correlation between changing snowcover and the net mass balance of Storglaciären, Northern Sweden....40 Eleri Evans, R. Essery and R. Lucas 3 Structure of Amundsenisen, Spitsbergen, from ground based radio echo sounding .............................................................................43 Piotr Glowacki, E. Vasilenko, Y. Macheret, A. Glazovsky, J. Moore, J.O. Hagen and F. Navarro Mass balance assessment of Werenskioldbreen (SW Spitsbergen) on the basis of meteorological and cartographical data...............45 Mariusz Grabiec, T. Budzik Climate change response of three ice caps in Iceland.................50 Sverrir Gumundsson, H. Björnsson, G. Aalgeirsdóttir, T. Jóhannesson, F. Pálsson and O. Sigursson Mass balance modelling of Hofsjökull..........................................54 T. Jóhannesson, O. Sigursson, . orsteinsson and R. Hock Natural radioactive isotopes in glacier studies.............................57 Antoine Kies, H. Surbeck and Z. Tosheva Fridtjovbreen changes in XX century from remote sensing data..61 Ivan I. Lavrentiev Preliminary results from radio-echo sounding at Ariebreen, Hornsund, Spitsbergen ................................................................64 F. Machío, J. Lapazaran, P. Dolnicki, M.Petlicki, P. Glowacki and F. Navarro Ablation of Hans Glacier (Svalbard) estimated using energy balance from the AWS data........................................................67 Krzysztof Migaa, D. Puczko, J. Jania and P. Gowack A new DEM over Austfonna ice cap from SAR interferometry, ICESat altimetry and GPS ground profiles...................................71 Geir Moholdt, T. Eiken, J.O. Hagen, A. Kääb, E. Loe, T. V. Schuler, and A. Taurisano Glacier-climate interactions in arctic Alaska.................................74 Matt Nolan and J. Geck Simulation of the turbulent fluxes at Summit, Greenland .............76 Friedrich Obleitner, N.J. Cullen and K. Steffen The impact of volcanic and geothermal activity on the mass balance of Vatnajökull..................................................................80 Finnur Pálsson, S. Gumundsson, and H. Björnsson Variations in mass balance and snow and firn densities along a transect in the percolation zone of the Greenland Ice Sheet .......85 Vicki Parry, P. Nienow, D. Mair and J. Scott A new glacier inventory for the Svartisen area (Norway) from Landsat ETM+: Methodological challenges and first results ........88 Frank Paul, L.M. Andreassen 4 A study of 18O and temperature gradients and their trends and relations over the ice field Lomonosovfonna, Svalbard, during the last century ..................................................................................91 Veijo Pohjola, B. Sjögren, T.Martma, E. Isaksson, J. Kohler, K. Törnblom and R.S.W. van de Wal Glacier volume projections: flowline modelling vs volume-area scaling..........................................................................................93 Valentina Radi, R. Hock and J. Oerlemans Modelling the 21st century mass balance of Svalbard glaciers using ERA-40 reanalysis and general circulation models ............96 Cameron Rye, I. Willis and N. Arnold Ground control for modelling glacier changes in Hornsundet ......99 Aleksey I. Sharov and Roland Wack Ablation and outflow from Kaffiøyra glaciers in 1996-2006, Svalbard.....................................................................................104 Ireneusz Sobota Mass balance monitoring of Kaffiøyra glaciers, Svalbard ..........108 Ireneusz Sobota Relationship of equilibrium line altitude (ELA) and accumulation area ratio (AAR) with mass balance of Kaffiøyra glaciers, Svalbard ...................................................................................................112 Ireneusz Sobota Mass balance observations on some glaciers in 2004/2005 and 2005/2006 balance years, Nordenskiold Land, Spitsbergen......115 I.Y. Solovyanova and B.R. Mavlyudov Geodetic investigations on dynamic parameters of the West Greenland inland ice..................................................................121 Manfred Stober Estimation of the motion of arctic glaciers with satellite L-band SAR data ...................................................................................125 Tazio Strozzi, A. Wiesmann, U. Wegmüller, C. Werner, A. Kouraev and A. Sharov A new glacier inventory for Cumberland Peninsula, Canadian Arctic, from ASTER data with assessment of changes since 1975 and the Little Ice Age extent ......................................................127 Felix Svoboda and F. Paul Thermal regime changes of the polythermal Midre Lovénbreen, Svalbard.....................................................................................130 Ian C. Willis, D.M. Rippin and J. Kohler 5 World Glacier Monitoring Service – Call-for-data for the observation period 2000–2005 and International Polar Year activities.....................................................................................134 Michael Zemp, M. Hoelzle, F. Paul and W. Haeberli Mass Balance of the Greenland Ice Sheet: Consistent Results on Near Balance to Negative..........................................................137 H. Jay Zwally, A.C. Brenner, S.B. Luthcke, D. Yi, J. Li, J.L. Saba, M.B. Giovinetto, H.G. Cornejo, M.A. Beckley, and W. Abdalati GLACIODYN .................................................................................139 6 PREFACE This year (2007) the annual workshop of the Working Group on Arctic Glaciology of the International Arctic Science Committee (IASC-WAG) was held once more in Pontresina, Switzerland. Apart from the traditional contributions on the mass balance of arctic glaciers there was also an appreciable number of contributions on glacier dynamics. Over 50 participants presented 41 oral contributions and 11 posters on a wide range of subjects. Since previous reports of the workshop were received with great enthusiasm, it was decided to make a book of extended abstracts once more. Therefore many of the presentations are summarized here, and I want to thank the contributors for their efforts to produce clear and well-illustrated texts. IASC generously provided financial means for eight young scientists to participate in the workshop. Further support was received from IMAU (Utrecht University) and the Netherlands IPY Programme (NWO), covering the costs of the congress facilities and the printing of this book. It is clear that the IPY will strengthen existing projects and generate new projects on arctic glaciers. The issue of greenhouse warming, land ice and sea level,
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