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  • This product includes a map of the peaks of around 3,000 submarine dunes entered using bathymetric surveys by Shom. Each dune is marked out by a line showing its peak summit. Dune locations are precise to between 1 m (MBES data from the 2000-2010 period) and a dozen metres (data acquired prior to 2000 using a side sonar). The precision of the carrier location, the acquisition system and the MBES resolution (the distance between the systems acquired) also affect map precision. Submarine dunes can move at the rate of a few metres per year, but can also exceed 30 m/year. The precision of dune positions will therefore decrease with the age of the measurement.

  • The product "Distribution of the submarine dunes of the French continental shelf" contains digital vector data provided as 2D linear objects representing the crest of submarine dunes digitized from bathymetric surveys conducted by the Shom. When several surveys have been carried out on the same area or dune, the product contains the information from all the surveys. However, the data displayed on data.shom.fr is limited to the information from the most recent survey.

  • The product "Distribution of the submarine dunes of the French continental shelf" contains digital vector data provided as 2D linear objects representing the crest of submarine dunes digitized from bathymetric surveys conducted by the Shom. When several surveys have been carried out on the same area or dune, the product contains the information from all the surveys. However, the data displayed on data.shom.fr is limited to the information from the most recent survey.

  • Image numérique scannée non géoréférencée de la Bathymétrie 1980_03_07 Date de création : 1980 Support de l'original: Dimensions : 1045mm x 754mm

  • Image numérique scannée non géoréférencée de la Bathymétrie et nature de fond 2006_03_03 Date de création : 2005 Support de l'original: Film polyester Dimensions : 1100mm x 750mm Description : SMFN 10-3, rapport particulier n° 367 MHA/NP du 24/10/2006.

  • Image numérique scannée non géoréférencée de la Minute 1995_42_03 Date de création : 1995 Support de l'original: Film polyester Dimensions : 1092mm x 770mm Description : P 95_10_4-1, rapport particulier n° 488 EPSHOM/CH/GG/NP du 11/04/1995.

  • Image numérique scannée non géoréférencée de la Bathymétrie 2007_043_03 Date de création : 2007 Support de l'original: Film polyester Dimensions : 1250mm x 859mm Description : SMF 10-3, rapport particulier n° 20 SHOM/GHA/NP du 04/09/2007.

  • Image numérique scannée non géoréférencée de la Bathymétrie 2000_48_04 Date de création : 1995-1998 Support de l'original: Film polyester Dimensions : 1150mm x 752mm Description : B 10-4, rapport particulier n° 52 MOP/UHNC/NP du 19/02/1999.

  • Image numérique scannée non géoréférencée de la Bathymétrie 2002_26_02 Date de création : 2000 Support de l'original: Film polyester Dimensions : 1250mm x 831mm Description : SMF 10-8, rapport particulier n° 010 MHA/NP du 09/01/2002.

  • Image numérique scannée non géoréférencée de la Minute 2009_83_04 Date de création : 2009 Support de l'original: Film polyester Dimensions : 1300mm x 898mm Description : RN 10-1 rapport particulier RAP2010-001