Media type: E-Article Title: Evaluating Biosphere Model Estimates of the Start of the Vegetation Active Season in Boreal Forests by Satellite Observations Contributor: Böttcher, Kristin; Markkanen, Tiina; Thum, Tea; Aalto, Tuula; Aurela, Mika; Reick, Christian; Kolari, Pasi; Arslan, Ali; Pulliainen, Jouni imprint: MDPI AG, 2016 Published in: Remote Sensing Language: English DOI: 10.3390/rs8070580 ISSN: 2072-4292 Keywords: General Earth and Planetary Sciences Origination: Footnote: Access State: Open Access