Reference watersheds for implementation of the Loire Estuary SAGE (Water Development and Management Plan)Bassins versants de références pour la mise en œuvre du SAGE Estuaire de la Loire

Bassins versants de références pour la mise en œuvre du SAGE Estuaire de la LoireReference watersheds for implementation of the Loire Estuary SAGE (Water Development and Management Plan)

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This dataset published on the Pays de la Loire regional open-data portal delineates the reference watersheds (bassins versants) used for implementing the SAGE (Schéma d'Aménagement et de Gestion des Eaux) for the Loire Estuary in France. The boundaries represent an operational subdivision of the estuary catchment area, identified to support the planning and rollout of local water management actions defined under the SAGE. It is relevant for water management authorities, local planners, and researchers working on catchment-scale water resource governance in the Loire Estuary region.Bassins versants de référence du SAGE Estuaire de la Loire. Les bassins versants de référence correspondent à un découpage opérationnel identifiés pour la mise en œuvre des actions locales planifiées dans le Schéma d'Aménagement et de la Gestion des Eau.

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Data schema (6 fields)

Filterable via the API (4)

t_sagenom_tsashape_areasurface_en_km2

Click a field to see example values.

Field	Type	Description
geo_shapeShape	geo_shape	Geographic polygon boundary of the reference watershed.Geographic polygon boundary of the reference watershed.
t_sageCode du Bassin de référence	text	Code identifying the reference watershed.Code identifying the reference watershed.
nom_tsaNom du bassin versant de référence	text	Name of the reference watershed.Name of the reference watershed.
shape_areaSurface du bassin versant	double	Area of the watershed in square meters.en m2
surface_en_km2Surface en km2	double	Area of the watershed in square kilometers.Area of the watershed in square kilometers.
geo_point_2dCoordinates	geo_point_2d	Geographic coordinates of the watershed's centroid.Geographic coordinates of the watershed's centroid.

Schema captured from opendatasoft 3 days ago.

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Sample data (5 records)

These rows are ODbL-1.0: share-alike. Reusing them obliges you to license any derived database on the same terms.

Record 1t_sage: TSA002 · nom_tsa: Acheneau - Tenu

{
  "t_sage": "TSA002",
  "nom_tsa": "Acheneau - Tenu",
  "geo_shape": "[large value omitted]",
  "shape_area": 516613220.17717,
  "geo_point_2d": {
    "lat": 47.10494814154744,
    "lon": -1.8093086639993166
  },
  "surface_en_km2": 516.61322
}

Record 2t_sage: TSA006 · nom_tsa: Hâvre - Grée

{
  "t_sage": "TSA006",
  "nom_tsa": "Hâvre - Grée",
  "geo_shape": "[large value omitted]",
  "shape_area": 370097617.19008,
  "geo_point_2d": {
    "lat": 47.422782817475486,
    "lon": -1.218925606030878
  },
  "surface_en_km2": 370.09762
}

Record 3t_sage: TSA005 · nom_tsa: Erdre

{
  "t_sage": "TSA005",
  "nom_tsa": "Erdre",
  "geo_shape": "[large value omitted]",
  "shape_area": 974843780.01225,
  "geo_point_2d": {
    "lat": 47.44528552442857,
    "lon": -1.3644663264027697
  },
  "surface_en_km2": 974.84378
}

Record 4t_sage: TSA009 · nom_tsa: Littoral guérandais et nazairien

{
  "t_sage": "TSA009",
  "nom_tsa": "Littoral guérandais et nazairien",
  "geo_shape": "[large value omitted]",
  "shape_area": 119720270.36881,
  "geo_point_2d": {
    "lat": 47.29771611208746,
    "lon": -2.400430765771286
  },
  "surface_en_km2": 119.72027
}

Record 5t_sage: TSA004 · nom_tsa: La Loire et ses petits affluents

{
  "t_sage": "TSA004",
  "nom_tsa": "La Loire et ses petits affluents",
  "geo_shape": "[large value omitted]",
  "shape_area": 300507906.34876,
  "geo_point_2d": {
    "lat": 47.24508630373781,
    "lon": -1.628111374770616
  },
  "surface_en_km2": 300.50791
}

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

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Using the API

Configuration

Base URL: https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/200055127_bassins-versants-de-references-pour-la-mise-en-oeuvre-du-sage-estuaire

License

Open Data Commons Open Database License 1.0Open

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Query examples

curl -s 'https://data.paysdelaloire.fr/api/explore/v2.1/catalog/datasets/200055127_bassins-versants-de-references-pour-la-mise-en-oeuvre-du-sage-estuaire/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

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Rate limits

5 000 req/day

per ipmeasured

observed 3 days ago

Dataset

Volume & freshness

Records

Last upstream update

1 year ago

2025-09-11

Temporal coverage

2019 → ongoing

License

No license declared upstream.

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Source: opendatasoft

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