Tarfala Research Station is part of the Swedish National Phenology Network (SWE-NPN). The goal of the network is to provide long-term environmental assessment data on natural vegetation cycles. Data is provided and presented on an interactive site called Naturens kalender (Nature's calendar, in Swedish only). The map indicates the current observational network.
Legend: Blue: professional research stations; Yellow: Weather observers associated to the Swedish Meteorological and Hydrological Institute; Red: farms with historical data; and Green: volounteers.