Reference measurements of climate at forested experimental parks

The datasets contain air temperature, soil temperature, precipitation, global radiation, humidity and other meteorological variables from seven measuring stations at the forest experimental parks in different parts of Sweden. The measurements are ongoing and the datasets are continuously updated.

Measurements of air and soil temperature, humidity, global radiation and precipitation are carried out at seven of SLU's Forest Experimental Parks. At some of the stations, other climate variables are measured, including wind, photosynthetic activity (PPFD) and snow depth. Most variables are measured every minute to produce 10-minute and daily values, which are stored and made available on the web.

Data from the measurement programme are available from 1990, but the measurements started already in 1922 at the oldest experimental parks and were a collaboration with the Swedish Meteorological and Hydrological Institute (then called SMHA). Since 1989, the measurements have been carried out using the same method at all experimental parks. The measurements follow standards from the World Meteorological Organisation (WMO) and can therefore be related to national (SMHI stations) and international climate measurements.

The measurement programme aims to provide the basis for long-term climate measurements of high quality and continuity in close proximity to the respective experimental sites, to provide projects and other interested parties with meteorological background data, and to serve as a reference for other climate-related measurements within the respective experimental sites.

Data can be downloaded from the webiste of the Unit for Field-based Forest Research, where there are also tools to create graphs and display data in tables.

• Download reference climate data