The 30 m micrometeorological tower was established on the most southern tip of the island Östergarnsholm about 4 km from the eastern coast of Gotland in 1995. Östergarnsholm is a small, flat island which stretches about 2 km in a W-E and N-S direction respectively. The maximum depth of the sea within 1 km radius is about 30 m. The station includes land-based measurement of turbulent exchange of momentum, energy and carbon between surface and atmosphere, but also water-based measurements on surface water pCO2 and other important state variables. Updates to the the off-grid power solution was done in November 2016 and data availability improved after this. The site also hosts a ICOS fixed Ocean station (FOS).
