English

The mixed-phase version of moist-air entropy

Atmospheric and Oceanic Physics 2016-05-17 v1 Fluid Dynamics Geophysics

Abstract

The aim of this note is to derive the mixed-phase version of the moist-air entropy potential temperature θs\theta_s derived in Marquet (2011). This mixed-phase version is suitable to describe parcels where liquid water and ice are allowed to coexist, with possible under- or super-saturations, with possible supercooled water and with possible different temperatures for dry air and water vapour, on the one hand, condensed water and ice, on the other hand. The impact of this new mixed-phase version for θs\theta_s are evaluated by using high latitudes, SHEBA/FIRE-ACE vertical profiles depicted in Figure 7 of Morisson et al. (2011).

Keywords

Cite

@article{arxiv.1605.04382,
  title  = {The mixed-phase version of moist-air entropy},
  author = {Pascal Marquet},
  journal= {arXiv preprint arXiv:1605.04382},
  year   = {2016}
}

Comments

3 pages, 3 Figures, to be published in the WGNE Blue-Book 2016