• Acronyme :
  • Référence :
  • Domaine de recherche :
    Sciences de la Terre et de l'Univers
  • Région :
    Subantarctique, Amsterdam,Kerguelen, Crozet
  • Site :
  • Responsable du projet :
    Rogister Yves

Gravity variations in polar and sub-Antarctic regions - Constraints on post-glacial rebound and present-day ice melting

The observation of pluriannual gravity variations in the polar and subantarctic regions thanks to the repeat of ground absolute gravity measurements is instrumental in constraining present-day ice mass changes and post-glacial rebound. We plan to repeat the following campaigns. In the Arctic, absolute gravity will be measured at Ny-Alesund, Svalbard, in 2017 and 2020, previous measurements dating back to 2001, 2004, 2007, 2010, 2012, and 2014. In the southern hemisphere, absolute gravity observations will be made at Dumont d’Urville station, Antarctica, in 2018 (previous measurements in 2000 and 2006), and on the French sub-Antarctic islands Crozet, Kerguelen and New Amsterdam in 2019 (previous measurements in 2001, 2003 and 2005).