Conditions météo-marines responsables des submersions marines en Manche orientale : méthodes inductive et naturaliste

Pauline Letortu 1 Stéphane Costa 1 Olivier Cantat 1
1 LETG - Caen - Littoral, Environnement, Télédétection, Géomatique
LETG - Littoral, Environnement, Télédétection, Géomatique UMR 6554
Abstract : Meteorological and marine conditions ending in coastal flooding in the eastern English Channel: inductive and naturalistic approaches. In this paper, French low coastal areas of Upper Normandy and Picardy are studied in account of their sensitivity to coastal flooding risk (exposure to strong west wind, morphological features, and urban areas in low-lying coastal areas). In matching meteorological and marine factors with an inventory of past events, we identify the dominance of the concomitance of well-known and understood conditions (strong wind perpendicular to coast and high tide level), reinforced here by the passage of an atmospheric cold front during high tide. But few cases do not follow this logic. To understand them, thanks to inductive and naturalistic approaches, we emphasize "the preparation time" of the beach (lowering of its profile) by meteorological and marine conditions (not necessarily extreme) before the coastal flooding event.
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https://hal.archives-ouvertes.fr/hal-00739290
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Submitted on : Sunday, October 7, 2012 - 3:44:00 PM
Last modification on : Tuesday, August 27, 2019 - 11:02:09 AM

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Pauline Letortu, Stéphane Costa, Olivier Cantat. Conditions météo-marines responsables des submersions marines en Manche orientale : méthodes inductive et naturaliste. 25ème colloque de l'Association Internationale de Climatologie : Les climats régionaux : observation et modélisation, Sep 2012, Grenoble, France. pp.481-486. ⟨hal-00739290⟩

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