{
  "HAPI": "3.3",
  "description": "NORSTAR single-beam riometer raw signal voltage - Fort Smith, NWT, Canada",
  "resourceURL": "https://data.phys.ucalgary.ca/data/datasets/riometers.html",
  "contact": "Emma Spanswick (elspansw@ucalgary.ca)",
  "datasetCitation": "https://doi.org/10.11575/AFYX-M516",
  "x_dataUsage": "This dataset is provided by the University of Calgary and is subject to the data usage and citation policy described at https://data.phys.ucalgary.ca/data/how_to_cite.html",
  "startDate": "2005-01-01T00:00:00Z",
  "stopDate": "2026-08-27T00:00:00Z",
  "cadence": "PT5S",
  "maxRequestDuration": "P31D",
  "sampleStartDate": "2015-10-16T00:00:00Z",
  "sampleStopDate": "2015-10-17T00:00:00Z",
  "geoLocation": [
    -111.93,
    60.03
  ],
  "x_site_uid": "fsmi",
  "x_site_full_name": "Fort Smith, NWT, Canada",
  "x_descriptionLong": "Raw signal voltage from the NORSTAR single-frequency single-beam riometer at this site, recorded at 5-second cadence. Riometers measure ionospheric opacity through the absorption of cosmic radio noise. K0 is the raw (unbaselined) data product; derived cosmic noise absorption is available in the corresponding NORSTAR_RIOMETER_K2 dataset. More information at https://data.phys.ucalgary.ca",
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "fill": null,
      "length": 20
    },
    {
      "name": "raw_signal",
      "type": "double",
      "units": "V",
      "fill": "NaN",
      "description": "Riometer raw signal voltage"
    }
  ],
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "x_LastUpdate": "2026-08-26T15:06:23Z"
}