GNET, Greenland GNSS Network, is a global reference frame for geodesy and geophysics

An internationally coordinated research campaign, the International Polar Year (IPY) 2007-2008, initiated a coordinated effort to study the polar regions using modern observational techniques, including a major investigation using geodetic and seismic instrumentation. This effort is formally known and funded under the name “POLENET”, or the Polar Earth Observing Network. In Greenland, the GNET project was developed to establish a network of GPS receivers operating continuously and autonomously on stable bedrock around Greenland. The most prominent institutions involved in supporting this effort have been The Ohio State University, the University of Luxembourg, UNAVCO (Boulder, CO), and the Technical University of Denmark, Department of Space Research and Technology (DTU Space, Copenhagen). During the years 2007, 2008, and 2009 a total of 42 permanent GNSS stations were established along the coast of Greenland.

In the period 1996 until 2009, the Danish Government established a network of permanent GNSS stations in collaboration with DTU Space, also along the coast of Greenland. During this time a total of 16 stations were established and operated simultaneously with the GNET project. 

In 2009 the two networks started operating together, with maintenance carried out by UNAVCO and DTU Space in coordination.

In 2016 N

From January 1, 2019, the Danish Government has formally taken over the ownership of all 58 GNET stations.