Greenland Ice Sheet Project

The Greenland Ice Sheet Project (GISP) was a decade-long project to drill ice cores in Greenland that involved scientists and funding agencies from Denmark, Switzerland and the United States.

The ice cores provide a proxy archive of temperature and atmospheric constituents that help to understand past climate variations.

After this, annual field expeditions were carried out to drill intermediate depth cores at various locations on the ice sheet.

There was a follow-up U.S. GISP2 project, which drilled at a glaciologically better location on the summit of the ice sheet.

[4] The location of the GISP2 drilling was revisited annually during summer campaigns to investigate the post-depositional properties of gasses and aerosols in the firn.