Please note: You are viewing the unstyled version of this website. Either your browser does not support CSS (cascading style sheets) or it has been disabled. Skip navigation.

Meltwater Tracing in the Greenland Ice Sheet

  Email    Print  PDF  Change text to small (default) Change text to medium Change text to large

Enlarge Image

Collecting water samples from a supraglacial lake atop the western Greenland Ice Sheet. (Ben Gready)


Enlarge Image

Field camp (foreground) with glacier "M" in background. (Matt Charette)


Enlarge Image

Departing field camp via helicopter. (Matt Charette)


Enlarge Image

Sampling subglacial outflow. (Maya Bhatia)


Meltwater Tracing in the Greenland Ice Sheet
The Greenland Ice Sheet represents the largest expanse of glacial ice in the Northern hemisphere and is capable of contributing significant quantities of meltwater and associated carbon material to the surrounding North Atlantic and Arctic Oceans (IPCC, 2007). However, the potential impact of carbon cycle fluctuations in Greenland and other glaciated environments has been largely neglected in many climate change models. Under climatic warming, these environments may contribute a disproportionately large flux of water and sediment to their surroundings. Here, we propose a novel multi-disciplinary approach to examine the interdependence of water and carbon cycles through the Greenland Ice Sheet. The primary objectives of this study are to establish a baseline flux of carbon export from glaciated Arctic environments by (1) assessing the timing and routing of meltwater through a large glacial system and (2) characterizing the magnitude, age and biological reactivity of the supraglacial (on the glacier surface) and subglacial (beneath the ice mass) carbon pools. To date, such first order characterization has not been undertaken, yet is requisite information for determining present carbon cycling beneath glaciated areas and the associated impact on the ocean. By establishing present-day values of meltwater flow and the type of organic carbon present beneath glaciated areas, this study will serve as the needed foundation for broader investigations into the impact of increased meltwater runoff from Arctic glaciated environments to the surrounding marine environments.

This research is funded by the WHOI Arctic Research Initiative.

Last updated: October 16, 2008
 


whoi logo

Copyright ©2007 Woods Hole Oceanographic Institution, All Rights Reserved, Privacy Policy.
Problems or questions about the site, please contact webdev@whoi.edu