The land-sea limit corresponds to the Highest Astronomical Tide (HAT) in the case of a tide of coefficient 120 and under normal meteorological conditions (no offshore wind and mean atmospheric pressure of 1013 hPa). This geometric line is naturally defined as the intersection of a HAT model (extended to the coast and the top end of the upper estuary) based on the available Bathyelli surfaces, and a high-resolution digital terrain model of the coastal area. It corresponds to the highest limit of the intertidal area and takes into account, when they exist, the 3 administrative maritime limits which are: the transversal limit of the sea (LTM), the salt water limit (LSE) and the limit of maritime jurisdiction (LAM). This limit is measured (quoted) in relation to the local hydrographic chart datum and to the levels of reference for France (IGN69 and IGN78 for Corsica). Relations to other levels of reference (mean sea level and ellipsoid) are known. The land-sea limit product, mainly results from the exploitation of the two products Litto3D®/RGEALTI® and Bathyelli, and represents, with a metric resolution (1 to 5 metres), this theoretical entity by a set of 2D polylines describing the nature of the coast (artificial or natural, rocky or sandy, steep or flat, etc.). The method used for calculating the land-sea limit makes it possible to produce a continuous, homogeneous and spatially coherent limit on the entire French metropolitan coastal area.

The land-sea limit corresponds to the Highest Astronomical Tide (HAT) in the case of a tide of coefficient 120 and under normal meteorological conditions (no offshore wind and mean atmospheric pressure of 1013 hPa). This geometric line is naturally defined as the intersection of a HAT model (extended to the coast and the top end of the upper estuary) based on the available Bathyelli surfaces, and a high-resolution digital terrain model of the coastal area. It corresponds to the highest limit of the intertidal area and takes into account, when they exist, the 3 administrative maritime limits which are: the transversal limit of the sea (LTM), the salt water limit (LSE) and the limit of maritime jurisdiction (LAM). This limit is measured (quoted) in relation to the local hydrographic chart datum and to the levels of reference for France (IGN69 and IGN78 for Corsica). Relations to other levels of reference (mean sea level and ellipsoid) are known. The land-sea limit product, mainly results from the exploitation of the two products Litto3D®/RGEALTI® and Bathyelli, and represents, with a metric resolution (1 to 5 metres), this theoretical entity by a set of 2D polylines describing the nature of the coast (artificial or natural, rocky or sandy, steep or flat, etc.). The method used for calculating the land-sea limit makes it possible to produce a continuous, homogeneous and spatially coherent limit on the entire French metropolitan coastal area.

Réseaux et équipements des ASAH sur les Landes

Ce jeu de données représente sous forme de ponctuels les bouches et poteaux incendie qui sont des prises d'eau branchées sur le réseau d'eau public et permettent d'alimenter les véhicules de secours et d'incendie.

Le SIAEP Luy et Gabas alimente en eau potable 42 communes du Nord-Est des Pyrénées-Atlantiques. Les plans de réseau datent de 2010.

Carte Communale (CC) numérisée. Ce lot informe du droit à bâtir sur la commune de MONMADALES. Cette CC est numérisée conformément aux prescriptions nationales du CNIG.

Ce jeu de données ponctuels caractérise la capacité du sol à infiltrer.

Ce jeu de données représente sous forme d'objets linéaires les éléments électriques (armoires, chambres, câbles) liés aux ouvrages d'assainissement (station de pompage, bassin, etc.) Il est associé au jeu de données "A_TEXT_P" qui affiche à l'écran la valeur de l'attribut « type ».

Le produit BD ORTHO® V2 est une collection de mosaïques d'orthophotographies numériques en couleurs ou en Infra Rouge couleurs,rectifiées dans la projection adaptée au territoire couvert. Orthophotographie numérique couleur datant de l'été 2009 Photographie post-tempête Klaus.Résolution : 0,40 cm.