The objective is to allow comparative studies of ecosystem dynamics in relation to climate variability and change in respectively a high arctic and low arctic setting as Nuuk Basic comprises the same components as Zackenberg. According to the framework programme of Zackenberg Ecological Research Operations (ZERO) this includes: - Basic quantitative documentation of ecosystem structure and processes; - Baseline studies of intrinsic short-term and long-term variations in ecosystem functions; - Retrospective analyses of organic and inorganic material to detect past ecosystem changes; - Experimental studies enabling predictions of ecosystem responses to Global Change. The programme is coordinated with Zackenberg Ecological Research Operations (see above) within the Framework of Greenland Ecosystem Monitoring (GEM). Main gaps: Winter dynamics