Ground control points

A number of glaciological (and other) research projects rely upon satellite imagery to give some access to the more inaccessible parts of the landscape in the Khumbu Himal. The most accurate locational processing of such imagery requires ground control points (GCPs) which are locations that are visible in the satellite imagery that have been measured with high accuracy differential GPS systems in the field.

In order to be able to get the best possible GCPs available for our work we decided to gather information on all the available points that we have within our community in the region, and they are shown in the map below, with the colour code explained beneath:

khumbu_gcpContributing organizations:

  • purple: German Aerospace Agency
  • yellow: University of Innsbruck (ACINN)
  • blue: Institut de recherche pour le développement (IRD)
  • red: University of Leeds
  • black: University of Leeds