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Fig. 3.
A. Wave direction versus significant wave height (H1/3 in meters) at ly900009 buoy south of Saint-Pierre Island (in 2012). B. Rose diagram of mean daily wind velocity (km/h) at Saint-Pierre Island.
Météo France database from 1998 to 2012.
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Fig. 4.
The Miquelon-Langlade Barrier. A. Aerial photo showing the beach-ridge plain with the eastward (SE) and south-westward (SW) prograding systems (photograph. by N. Robin). The contact between the systems is delineated by the dashed line. B. Field photo during the GPR survey. Data collection is with a 500 MHz Mala GPR antenna on a ridge of the plain.
Photograph by T. Vergoz© CNRS Images.
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3. Methods
The Miquelon-Langlade beach-ridge system was investigated using several approaches antagonistic muscles combined orthophotographs, topographic data, GPR profiles, hand augers, vibracores and OSL dating. Data were acquired during three field campaigns in 2011 and 2012.