caa a22 4500 469052384 CHVBK 20180323132833.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF01029561 doi (NATIONALLICENCE)springer-10.1007/BF01029561 Steinacker R. Institut für Meteorologie und Geophysik, University of Innsbruck, Ass. Prof Innrain 52, A-6020, Austria aut Dynamical aspects of frontal analysis [Elektronische Daten] [R. Steinacker] Summary: Following the empirical rules of frontal analysis on synoptic scale weather maps, a criterion has been derived, which allows an objective determination of the frontal position and the frontal intensity. It can be shown that the extreme value lines of the crossfrontal second derivative of several atmospheric variables are relevant to resolve the structure of the ageostrophic secondary frontal circulation. This is being shown by the application of quasigeostrophic theory (Q-vector approach) as well as with the approach to ageostrophic motion by Phillips' approximation. With the aid of a case study the application of the method with regard to several atmospheric variables is shown. It is shown that the empirical rules may well be interpreted in terms of the dynamical behaviour of fronts. Springer-Verlag, 1992 Meteorology and Atmospheric Physics Springer-Verlag 48/1-4(1992-03-01), 93-103 0177-7971 48:1-4<93 1992 48 703 https://doi.org/10.1007/BF01029561 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01029561 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Steinacker R. Institut für Meteorologie und Geophysik, University of Innsbruck, Ass. Prof Innrain 52, A-6020, Austria aut NATIONALLICENCE 773 0- Meteorology and Atmospheric Physics Springer-Verlag 48/1-4(1992-03-01), 93-103 0177-7971 48:1-4<93 1992 48 703 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer