North Greenland Ice Core Project

The NGRIP site was chosen to extract a long and undisturbed record stretching into the last glacial, and it succeeded.

The site was chosen for a flat basal topography to avoid the flow distortions that render the bottom of the GRIP and GISP cores unreliable.

Unusually, there is melting at the bottom of the NGRIP core – believed to be due to a high geothermal heat flux locally.

[3] "Several of the pieces look very much like blades of grass or pine needles," said University of Colorado at Boulder geological sciences Professor James White, an NGRIP principal investigator.

The NGRIP project was run by an international consortium of scientists, and drilling and logistics were managed by what is now called Centre for Ice and Climate at the Niels Bohr Institute, University of Copenhagen, Denmark.