Greenland Integrated Observing System

About GIOS

Greenland plays a unique and central role in the global climate system. The purpose of the Greenland Integrated Observing System (GIOS) is to resolve and understand the mechanisms behind climate and environmental change in Greenland and beyond. GIOS is a new coordinated network of sustainable long-term research infrastructures in and around Greenland observing the changing air, ice, land, and ocean conditions. GIOS is an important and timely national research infrastructure linking all institutions and universities currently carrying out Arctic research in the Danish Realm.

GIOS observing system

Air Hydrology Ice sheet Land Marine Permafrost Sea ice & snow Space weather
Our Projects

The ability to predict future changes are strongly dependent on concurrent and long-term records of glaciological, terrestrial, oceanic, and atmospheric processes. Arctic communities depend on knowledge especially at the ice sheet/ocean margins – where exchanges of heat, greenhouse gases, nutrients and freshwater are occurring. Sea level changes require monitoring of glaciers and ice sheets and have a global impact. In order to promote  sustained data observations, we are developing a new and integrated system, the Greenland Integrated Observing System (GIOS).

Ice sheet

Warmer air temperatures are resulting in increased precipitation on the Greenland ice sheet and particularly an increasing contribution from rain. Rain quickly removes and darkens existing snow thus amplifying melt and loss of mass. Capturing the amplification effect caused by this transition from snow to rain precipitation is essential to correctly understand mass loss and sea level rise. To address this, existing weather stations near the margin of the ice sheet will be upgraded to better record these changes.

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