1. Department of Forest Ecology and Management Swedish University of Agricultural Sciences Umeå Sweden
2. Department of Physical Geography and Ecosystem Science Lund University Lund Sweden
3. Max Planck Institute for Biogeochemistry Jena Germany
4. Department of Meteorology and Air Quality Environmental Sciences Group Wageningen University Wageningen The Netherlands
5. Laboratoire des Sciences du Climat et de l'Environnement Institut Pierre‐Simon Laplace CEA‐CNRS‐UVSQ Gif‐sur‐Yvette France