FASTEX IOP17 cyclone: Introductory synoptic study with field data

Autor: Patrick Mascart, Patrick Santurette, Philippe Arbogast, Jean-Pierre Cammas, Guy Caniaux, Alain Joly, Béatrice Pouponneau, Isabelle Mallet, Gérald Desroziers
Rok vydání: 1999
Předmět:
Zdroj: Quarterly Journal of the Royal Meteorological Society. 125:3393-3414
ISSN: 1477-870X
0035-9009
Popis: This paper introduces the study of the early development phase of the IOP17 frontal cyclone of the FASTEX field experiment (Fronts and Atlantic Storm-Track EXperiment). With the support of observations from FASTEX observing platforms a synoptic description highlights the development of mesoscale features of interest in the operational Meteo-France ARPEGE (Action de Recherche Petite Echelle Grand Echelle) analysis cycle, i.e. cloud head, dry wedge and upper-level jet outflow. A discussion attempts to isolate two significant differences of the present cyclone life cycle compared with previous well-known conceptual models of maritime cyclone life cycles: (i) the indirect role of an upper-level precursor in triggering the surface low; (ii) the existence of a diabatic regime taking over from the baroclinic development to sustain the deepening rate of the cyclone. These two mechanisms are the subject of two companion papers.
Databáze: OpenAIRE
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