Värriö Subarctic Research Station was founded in 1967 and belongs to the Institute for Atmospheric and Earth System Research (INAR) at the University of Helsinki. It is located in the Värriö strict nature reserve in eastern Finnish Lapland or – as the slogan of Salla municipality puts it – in the middle of nowhere. The station has collected exceptionally long data series on environmental factors, which reflect the changes in subarctic forests, fell ecosystems, air pollution and climate over decades. The studies at Värriö are multi- and interdisciplinary. The current research focuses e.g. on atmospheric chemistry and physics, the productivity of the subarctic ecosystems, as well as on monitoring the population and phonology of multiple species including moths, birds and mammals. The station hosts the SMEAR I measurement station representing internationally leading scientific research.

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