Max-Planck-Institute for Biogeochemistry, Dept. Biogeochemical Systems conducts field work in Northeast Siberia from 26 June to 14 July 2017. The field work takes place at the Ambarchik Bay Observatory , where PhD student Martijn Pallandt from MPI-BCG is working. Activities include instrument maintenance, sensitivity tests/experiments for data quality assessment, preparations for installation of new INTAROS flask sampling system in summer 2018