%0 Journal article %A Hellmuth, Olaf %A Feistel, Rainer %A Foken, Thomas %T Intercomparison of different state-of-the-art formulations of the mass density of humid air %R 10.1007/s42865-021-00036-7 %J Bulletin of Atmospheric Science and Technology %V 2 %N 1-4 %I Springer International Publishing %X The differences between one classical and three state-of-the-art formulations of the mass density of humid air were quantified. Here, we present both the calculi for direct determination of the humid-air mass density employing the virial form of the thermodynamic equation of state, and a sufficiently accurate look-up-table for the quick-look determination of the humid-air mass density, which is based on the advanced Thermodynamic Equation of Seawater 2010. %U http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11467 %~ FID GEO-LEO e-docs