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                  <gco:CharacterString>1) Données d'entrée : les traits de côte de 1985, 1998, 2000, 2006, 2007, 2008, 2009, 2011 et 2014 ont été analysés sous DSAS afin d'obtenir le taux d'évolution. Le trait de côte de référence de cette étude est celui de 2014 sans ouvrage.     

2) Traitement : les taux calculés par DSAS ont été appliqués au trait de côte de référence pour obtenir la position à 2025 (x 11 ans). La position du nouveau trait de côte a été lissée numériquement (lissage des taux par secteurs homogènes) puis géomatiquement (à dire d'expert).     

3) Contenu : DATE_ (année du trait de côte) ; Transects (numéro du transect DSAS) ; TX_BRUT (taux calculés par DSAS à partir des TDC historiques) ; TX_EXP (taux calculés par DSAS à partir des TDC 2014, 2025 et 2050) ; LMAX ; CELLULE (numéro de la cellule DSAS) ; ID_UNIQUE (identifiant du tronçon) ; INCERT_DIS (distance en mètres entre le TDC projeté par DSAS sur la base des TDC historiques et le TDC positionné à dire d'expert) ; INCERT_SEU (seuils d'incertitude sur une échelle de 1 à 5 - 1=faible incertitude ; 5=forte incertitude) ; ID_UN_2014 (identifiant avec tronçons issus de l'analyse DSAS) ; Lmax_abs (taux de recul maximum possible au cours d'un événément) 

4) Références :
Bernon N., Mallet C., Belon R., avec la collaboration de Hoareau A., Bulteau T., Garnier C. (2016) - Caractérisation de l’aléa recul du trait de côte sur le littoral de la côte aquitaine aux horizons 2025 et 2050. Rapport BRGM/ RP-66277-FR, 99 p., 2 ann. 

5) Remarques : système de coordonnées RGF93/Lambert93. Mise à disposition des données sur demande directement auprès du producteur de données.</gco:CharacterString>
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