Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePotential vorticities in semi-geostrophic theory.AuthorsRoulstone, Ian; Sewell, Michael J.PublicationQuarterly Journal of the Royal Meteorological Society, 1996, Vol 122, Issue 532, p983ISSN0035-9009Publication typeArticleDOI10.1002/qj.49712253210