Electrical resistivity soundingsSondages électriques

Sondages électriquesElectrical resistivity soundings

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This dataset provides the cadastre of electrical resistivity soundings in the canton of Geneva, maintained by the Système d'information du territoire genevois. It compiles geophysical data supplied mainly by private geotechnical firms. Each sounding indicates, at a given surface location, how apparent ground resistivity varies with depth, providing insight into subsurface geological composition and stratigraphy. The dataset is useful for geotechnical studies, groundwater investigations, and subsurface characterization work carried out in the Geneva territory.Le cadastre des sondages électriques résulte de la gestion de données géophysiques fournies en majeure partie par les bureaux géotechniques privés. D'un point de vue géophysique les sondages électriques nous informent sur la variation, en un point donné de la surface, de la résistivité apparente du…

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Data schema (12 fields)

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Field	Type	Description
NO_FORAGENo forage	string	Identification number of the borehole/survey point.Identification number of the borehole/survey point.
NO_TRAINENo traine	string	Identification number of the electrical survey line (traverse).Identification number of the electrical survey line (traverse).
DATE_SAISIEDate saisie	string	Year the survey data was recorded.Year the survey data was recorded.
RISS	double	Apparent resistivity value measured at the survey point.Apparent resistivity value measured at the survey point.
HTN	double	Elevation of the survey point above a reference datum.Elevation of the survey point above a reference datum.
LONGUEUR	double	Length of the survey line in metres.Length of the survey line in metres.
NO_PLAN_ENSEMBLENo plan ensemble	string	Reference number of the overview plan for this survey.Reference number of the overview plan for this survey.
Y	string	Y coordinate of the survey point in the cantonal grid.Y coordinate of the survey point in the cantonal grid.
X	string	X coordinate of the survey point in the cantonal grid.X coordinate of the survey point in the cantonal grid.
OBJECTID	oid	Internal record identifier.Internal record identifier.
STATUT	string	Publication status of the survey record, e.g. public.Publication status of the survey record, e.g. public.
LIEN_PDFLien pdf	string	Link to the PDF document of the survey.Link to the PDF document of the survey.

Schema captured from arcgis 29 days ago.

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Sample data (3 records)

Record 1X: 111383 · Y: 490166

{
  "X": "111383",
  "Y": "490166",
  "HTN": 434.1,
  "RISS": null,
  "STATUT": "Public",
  "LIEN_PDF": "https://ge.ch/sitg/geodata/SITG/SONDAGES_ELECTRIQUES/15-41.pdf",
  "LONGUEUR": 0,
  "OBJECTID": 1,
  "NO_FORAGE": "15-41",
  "NO_TRAINE": "32",
  "DATE_SAISIE": "1981",
  "NO_PLAN_ENSEMBLE": "15"
}

Record 2X: 111339 · Y: 490169

{
  "X": "111339",
  "Y": "490169",
  "HTN": 434.3,
  "RISS": null,
  "STATUT": "Public",
  "LIEN_PDF": "https://ge.ch/sitg/geodata/SITG/SONDAGES_ELECTRIQUES/15-44.pdf",
  "LONGUEUR": 0,
  "OBJECTID": 2,
  "NO_FORAGE": "15-44",
  "NO_TRAINE": "35",
  "DATE_SAISIE": "1981",
  "NO_PLAN_ENSEMBLE": "15"
}

Record 3X: 111406 · Y: 490185

{
  "X": "111406",
  "Y": "490185",
  "HTN": 434.2,
  "RISS": null,
  "STATUT": "Public",
  "LIEN_PDF": "https://ge.ch/sitg/geodata/SITG/SONDAGES_ELECTRIQUES/15-40.pdf",
  "LONGUEUR": 0,
  "OBJECTID": 3,
  "NO_FORAGE": "15-40",
  "NO_TRAINE": "31",
  "DATE_SAISIE": "1981",
  "NO_PLAN_ENSEMBLE": "15"
}

Live sample captured at profiling time — values may have changed upstream.

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Base URL: https://vector.sitg.ge.ch/arcgis/rest/services/GOL_SONDAGE_ELECTRIQUE/FeatureServer

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curl -s 'https://vector.sitg.ge.ch/arcgis/rest/services/GOL_SONDAGE_ELECTRIQUE/FeatureServer?f=json' -H 'Accept: application/json'

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