Evidence of a contracted North Water Polynya during Holocene warm intervals: implications for high Arctic polynyas in a changing climate

Rebecca Jackson1, Anna Bang1,2, Audrey Limoges3, Eleanor Georgiadis4,5, Steffen Malskær Olsen6, Jacques Giraudeau7, Guillaume Masse8,9 and Sofia Ribeiro1, (1)Geological Survey of Denmark and Greenland, Glaciology and Climate Department, København K, Denmark, (2)University of Copenhagen, Department of Geosciences and Natural Resource Management, København K, Denmark, (3)University of New Brunswick, Department of Earth Sciences, Fredericton, Canada, (4)Université Bordeaux, CNRS, Pessac, France, (5)Université Laval, Quebec City, QC, Canada, (6)Danish Meteorological Institute, København Ø, Denmark, (7)Université Bordeaux/CNRS/EPHE, UMR EPOC, Talence, France, (8)Université Laval, Québec, QC, Canada, (9)Sorbonne-Université, Paris, France