View In:
ArcGIS Online Map Viewer
Name: LCE_DANGERS_CRUES
Display Field: cours_eau
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: La loi fédérale sur l'aménagement du territoire (LAT) oblige les cantons de désigner les parties du territoire qui sont gravement menacées par des forces naturelles ou par des nuisances.
L'ordonnance fédérale sur l'aménagement des cours d'eau (OACE) spécifie que les cantons doivent tenir un cadastre des dangers, élaborer et tenir à jour des cartes de dangers.
L'estimation du danger de crues est fait sur la base de la probabilité d'occurrence (temps de retour), de l'intensité du phénomène (hauteur d'eau et vitesse d'écoulement) et de l'érosion des berges.
Le danger est classifié et cartographié selon les recommandations de la confédération:
aucun danger connu - blanc = zone où aucun danger n'est déterminé selon l'état des connaissances actuelles;
danger fort - rouge = zone d'interdiction;
danger moyen - bleu = zone de réglementation;
danger faible - jaune = zone de sensibilisation;
danger résiduels - rayures jaunes = zone de sensibilisation.
Service Item Id: 3a3de0296a5849d690c1a50d08adbc5f
Copyright Text:
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Supported Query Formats: JSON, geoJSON, PBF
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Type ID Field:
Fields:
-
objectid
(
nullable: false, defaultValue: null, editable: false, length: 4, type: esriFieldTypeOID, modelName: OBJECTID, alias: OBJECTID
)
-
cours_eau
(
modelName: cours_eau, nullable: true, editable: true, defaultValue: null, length: 254, alias: COURS_EAU, type: esriFieldTypeString
)
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degre
(
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type
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Name: LCE_DANGERS_CRUES
Description:
Prototype:
cours_eau: null
degre: null
type: null
commentaire: null
date_leve: null
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Metadata