Led by Ohio State University's division of Geodetic Science, G-NET is a network of 46 continuous GPS stations spread across Greenland. This network will map the steady vertical velocity field associated with postglacial rebound and improve our understanding of ice mass changes in Greenland, allowing scientists to quickly detect and analyze any abrupt changes in the rate of ice loss in this region.
The Battle for the North Pole: Melting Ice Brings Competition for Resources
From Spiegel Online
http://www.spiegel.de/international/world/0,1518,579265,00.html