Regions

Simplified, polygonized version of the forecast, representing contrail avoidance regions in GeoJSON multipolygon format.

Contrail avoidance regions are rated by severity levels, ranging from 1 to 4 for each flight level; 1 represents light risk and 4 represents extreme contrail risk.

Data format

Regions are in GeoJSON format containing a FeatureCollection:

{
  "type": "FeatureCollection",
  "features": [
      {
        "type": "Feature",
        "properties": {
            "time": "<ISO 8601 datetime>",
            "flightLevel": <int>,
            "threshold": <int>,
            "forecast_reference_time": "<ISO 8601 datetime>"
        },
        "geometry": {
          "type": "MultiPolygon",
          "coordinates": [...]
        }
      }
  ]
}