Digital Canopy Surface Model - State 2017

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This dataset provides a Digital Canopy Surface Model for the canton of Geneva as of 2017, representing the ground area covered by tree foliage. It can be used to calculate the canopy index, expressed as a percentage of a territory, in order to assess the degree of tree cover across the area. The data were derived from LiDAR point clouds acquired in February 2017. The dataset is published by the Système d'information du territoire genevois (SITG), the geographic information service of the canton of Geneva, Switzerland, and is freely accessible without authentication, making it useful for environmental monitoring and urban planning studies.The Numerical Canopy Surface Model (NCM) represents the floor area covered by tree foliage. This area can be used to calculate the canopy index in % of a territory in order to assess the degree of tree cover. This data was produced from LiDAR point clouds acquired in February 2017 and with a densit…

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Data schema (9 fields)

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Field	Type	Description
OBJECTID	int	Unique internal identifier for each canopy polygon record.Unique internal identifier for each canopy polygon record.
SHAPE	geometry	Geometric shape (polygon) representing the tree canopy footprint.Geometric shape (polygon) representing the tree canopy footprint.
H_MAXH max	double	Maximum canopy height measured within the polygon, in metres.Maximum canopy height measured within the polygon, in metres.
H_MINH min	double	Minimum canopy height measured within the polygon, in metres.Minimum canopy height measured within the polygon, in metres.
H_MEANH mean	double	Mean canopy height measured within the polygon, in metres.Mean canopy height measured within the polygon, in metres.
MILLER	double	Miller shape compactness index of the canopy polygon.Miller shape compactness index of the canopy polygon.
SHAPE_INDEXShape index	double	Shape complexity index of the canopy polygon.Shape complexity index of the canopy polygon.
SHAPE.AREA	double	Surface area of the canopy polygon, in square metres.Surface area of the canopy polygon, in square metres.
SHAPE.LEN	double	Perimeter length of the canopy polygon, in metres.Perimeter length of the canopy polygon, in metres.

Schema captured from wfs 9 hours ago.

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Sample data (3 records)

Record 1GmlID: SIPV_ICA_MNC_2017.1 · H_MAX: 13.23787975

{
  "GmlID": "SIPV_ICA_MNC_2017.1",
  "H_MAX": 13.23787975,
  "H_MIN": 3.00255919,
  "H_MEAN": 6.75342263,
  "MILLER": 0.22600342,
  "OBJECTID": 1,
  "SHAPE.LEN": 125.03786825,
  "SHAPE.AREA": 281.18726247,
  "SHAPE_INDEX": 2.1034999
}

Record 2GmlID: SIPV_ICA_MNC_2017.2 · H_MAX: 6.18942261

{
  "GmlID": "SIPV_ICA_MNC_2017.2",
  "H_MAX": 6.18942261,
  "H_MIN": 3.12200642,
  "H_MEAN": 5.00709816,
  "MILLER": 0.96513132,
  "OBJECTID": 2,
  "SHAPE.LEN": 5.93456864,
  "SHAPE.AREA": 2.70489198,
  "SHAPE_INDEX": 1.01790394
}

Record 3GmlID: SIPV_ICA_MNC_2017.3 · H_MAX: 5.05794334

{
  "GmlID": "SIPV_ICA_MNC_2017.3",
  "H_MAX": 5.05794334,
  "H_MIN": 3.02601147,
  "H_MEAN": 3.97223104,
  "MILLER": 0.77308947,
  "OBJECTID": 3,
  "SHAPE.LEN": 13.59679086,
  "SHAPE.AREA": 11.37332634,
  "SHAPE_INDEX": 1.1373264
}

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

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Base URL: https://vector.sitg.ge.ch/arcgis/services/SIPV_ICA_MNC_2017/MapServer/WFSServer?service=WFS&request=GetCapabilities

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curl -s 'https://vector.sitg.ge.ch/arcgis/services/SIPV_ICA_MNC_2017/MapServer/WFSServer?service=WFS&version=2.0.0&request=GetCapabilities' -H 'Accept: application/json'

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