For the past 25 years, researchers have carried out measurements of the climate and environment in East Greenland. This has resulted in an extremely valuable time series of many different data – primarily on the Zackenberg/Daneborg area and within the framework of the Greenland Ecosystem Monitoring (GEM) program. Presently, researchers at the Arctic Research Centre, Aarhus University, are setting up advanced autonomous measurement stations that expand the data coverage and manage themselves all year round.