Bathymetry, shallow seismic profiling and sediment coring in Sermilik near Helheimgletscher, South-East Greenland

Authors

  • Camilla Snowman Andresen Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K. Denmark
  • Niels Nørgaard-Pedersen Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K. Denmark
  • Jørn Bo Jensen Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K. Denmark
  • Birger Larsen Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K. Denmark

DOI:

https://doi.org/10.34194/geusb.v20.4987

Abstract

The Greenland ice sheet is one of the most significant contributors to the rising global sea level with a contribution of 0.5 mm per year (Rignot & Kanagaratnam 2006). Evidence is emerging that rising temperatures of subsurface ocean currents play a vital role in the recent acceleration of large fast flowing glaciers such as Jakobshavn Isbræ in West Greenland (Holland et al. 2008) and Helheimgletscher in South-East Greenland (Straneo et al. 2010). Important questions are whether these incursions of warmer water are part of a recurrent phenomenon and indeed exactly how they influence the glaciers. The Geocenter Denmark project SEDIMICE (Linking sediments with ice-sheet response and glacier retreat in Greenland) investigates past ice fluctuations in the Helheimgletscher region in South-East Greenland with regard to magnitude, possible causes and effects. One of the main tasks in this project is to analyse sedimentary deposits in the main fjord Sermilik (Fig. 1), which is influenced by the tidally affected Helheimgletscher that has a short floating tongue. By combining sediment studies with modern climate studies we aim to extrapolate meteorological data back in time.

Downloads

Download data is not yet available.

Downloads

Published

2010-07-07

How to Cite

Snowman Andresen, C., Nørgaard-Pedersen, N., Jensen, J. B., & Larsen, B. (2010). Bathymetry, shallow seismic profiling and sediment coring in Sermilik near Helheimgletscher, South-East Greenland. GEUS Bulletin, 20, 83–86. https://doi.org/10.34194/geusb.v20.4987

Issue

Section

RESEARCH ARTICLE | SHORT

Most read articles by the same author(s)

1 2 > >>