Graham, R.M., A. Rinke, L. Cohen, S.R. Hudson, V.P. Walden, M.A. Granskog, W. Dorn, M. Kayser, M. Maturilli, 2017: A comparison of the two Arctic atmospheric winter states observed during N‐ICE2015 and SHEBA,  J. Geophys. Res. Atm., 122, 5716-5737, doi:10.1002/2016JD025475