The An-2 aircraft measuring above an eddy flux tower.
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The An-2 aircraft measuring above an eddy flux tower.

by Andrej Varlagin, Moscow, Russia

The Antonov-2 aircraft flying above an eddy flux measurement tower, that is used to measure the exchange of CO2 and H2O between the spruce forest and the atmosphere. Flights is performed over the Central Forest Biosphere State Reserve at Fyodorovskoye, Russia.