Browsing Institutt for geofag by Author "Fettweis, Xavier"

Now showing items 1-8 of 8

  • Application of a two-step approach for mapping ice thickness to various glacier types on Svalbard 
    Jakob Fürst, Johannes; Gillet-Chaulet, Fabien; Benham, Toby; Dowdeswell, Julian A.; Grabiec, Mariusz; Navarro, Francisco; Pettersson, Rickard; Moholdt, Geir; Nuth, Christopher; Sass, Björn; Aas, Kjetil Schanke; Fettweis, Xavier; Lang, Charlotte; Seehaus, Thorsten; Braun, Matthias (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    The basal topography is largely unknown beneath most glaciers and ice caps, and many attempts have been made to estimate a thickness field from other more accessible information at the surface. Here, we present a two-step ...
  • Brief communication: Reduction in the future Greenland ice sheet surface melt with the help of solar geoengineering 
    Fettweis, Xavier; Hofer, Stefan; Séférian, Roland; Amory, Charles; Delhasse, Alison; Doutreloup, Sébastien; Kittel, Christoph; Lang, Charlotte; Van Bever, Joris; Veillon, Florent; Irvine, Peter J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The Greenland Ice Sheet (GrIS) will be losing mass at an accelerating pace throughout the 21st century, with a direct link between anthropogenic greenhouse gas emissions and the magnitude of Greenland mass loss. Currently, ...
  • Clouds drive differences in future surface melt over the Antarctic ice shelves 
    Kittel, Christoph; Amory, Charles; Hofer, Stefan; Agosta, Cécile; Jourdain, Nicolas C.; Gilbert, Ella; Le Toumelin, Louis; Vignon, Étienne; Gallée, Hubert; Fettweis, Xavier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract. Recent warm atmospheric conditions have damaged the ice shelves of the Antarctic Peninsula through surface melt and hydrofracturing and could potentially initiate future collapse of other Antarctic ice shelves. ...
  • Diverging future surface mass balance between the Antarctic ice shelves and grounded ice sheet 
    Kittel, Christoph; Amory, Charles; Agosta, Cécile; Jourdain, Nicolas; Hofer, Stefan; Delhasse, Alison; Doutreloup, Sébastien; Huot, Pierre-Vincent; Lang, Charlotte; Fichefet, Thierry; Fettweis, Xavier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract. The future surface mass balance (SMB) will influence the ice dynamics and the contribution of the Antarctic ice sheet (AIS) to the sea level rise. Most of recent Antarctic SMB projections were based on the fifth ...
  • Greater Greenland Ice Sheet contribution to global sea level rise in CMIP6 
    Hofer, Stefan; Lang, Charlotte; Amory, Charles; Kittel, Christoph; Delhasse, Alison; Tedstone, Andrew J.; Fettweis, Xavier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Abstract Future climate projections show a marked increase in Greenland Ice Sheet (GrIS) runoff during the 21 st century, a direct consequence of the Polar Amplification signal. Regional climate models (RCMs) are a widely ...
  • GrSMBMIP: intercomparison of the modelled 1980-2012 surface mass balance over the Greenland Ice Sheet 
    Fettweis, Xavier; Hofer, Stefan; Krebs-Kanzow, Uta; Amory, Charles; Aoki, Teruo; Berends, Constantijn J.; Born, Andreas; Box, Jason E.; Delhasse, Alison; Fujita, Koji; Gierz, Paul; Goelzer, Heiko; Hanna, Edward; Hashimoto, Akihiro; Huybrechts, Philippe; Kapsch, Marie-Luise; King, Michaela D.; Kittel, Christoph; Lang, Charlotte; Langen, Peter L.; Lenaerts, Jan T.M.; Liston, Glen E.; Lohmann, Gerrit; Mernild, Jacob Sebastian Haugaard; Mikolajewicz, Uwe; Modali, Kameswarrao; Mottram, Ruth H.; Niwano, Masashi; Noël, Brice; Ryan, Jonathan C.; Smith, Amy; Streffing, Jan; Tedesco, Marco; Van de Berg, Willem Jan; Van den Broeke, Michiel; Van de Wal, Rodecrick S.; Von Kampenhout, Leo; Wilton, David; Wouters, Bert; Ziemen, Florian; Zolles, Tobias (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Observations and models agree that the Greenland Ice Sheet (GrIS) surface mass balance (SMB) has decreased since the end of the 1990s due to an increase in meltwater runoff and that this trend will accelerate in the future. ...
  • Sensitivity of the surface energy budget to drifting snow as simulated by MAR in coastal Adelie Land, Antarctica 
    Le Toumelin, Louis; Amory, Charles; Favier, Vincent; Kittel, Christoph; Hofer, Stefan; Fettweis, Xavier; Gallee, Hubert; Kayetha, Vinay (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract. In order to understand the evolution of the climate of Antarctica, dominant processes that control surface and low-atmosphere meteorology need to be accurately captured in climate models. We used the regional ...
  • The ice-free topography of Svalbard 
    Fürst, Johannes J.; Navarro, Francisco; Gillet-Chaulet, Fabien; Huss, Matthias; Moholdt, Geir; Fettweis, Xavier; Lang, Charlotte; Seehaus, Thorsten; Ai, Songtao; Benham, Toby J.; Benn, Doug; Björnsson, Helgi; Dowdeswell, Julian A; Grabiec, Mariusz; Kohler, Jack; Lavrentiev, Ivan; Lindbäck, Katrin; Melvold, Kjetil; Pettersson, Rickard; Rippin, David; Saintenoy, Albane; Sánchez-Gámez, Pablo; Schuler, Thomas; Sevestre, Heidi; Vasilenko, Evgeny; Braun, Matthias H. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    We present a first version of the Svalbard ice‐free topography (SVIFT1.0) using a mass conserving approach for mapping glacier ice thickness. SVIFT1.0 is informed by more than 1 million point measurements, totalling more ...