Towards an advanced observation system for the marine Arctic in the framework of the Pan-Eurasian Experiment (PEEX) - Vihma, T.; Uotila, P.; Sandven, S.; Pozdnyakov, D.; Makshtas, A.; Pelyasov, A.; Pirazzini, R.; Danielsen, F.; Chalov, S.; Lappalainen, H. K.; Ivanov, V.; Frolov, I.; et al. (Atmos. Chem. Phys., 2019)