{
  "HAPI": "3.3.1",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "startDate": "2004-01-01T00:29:30Z",
  "stopDate": "2026-08-01T00:29:30Z",
  "cadence": "PT1H",
  "timeStampLocation": "center",
  "modificationDate": "2026-08-24T06:10:36Z",
  "title": "Dst Index (Provisional, 1-hour)",
  "description": "Dst index (hourly): a measure of the axially symmetric ring current disturbance field, derived from H-component variations at four low-latitude observatories. Provided by WDC for Geomagnetism, Kyoto. Provisional version only. Provisional values are computed monthly and may be superseded by the Final version. Values are hourly means; timestamps are bin centers (timeStampLocation=center, HH:29:30).",
  "resourceID": "doi:10.17593/14515-74000",
  "datasetCitation": "World Data Center for Geomagnetism, Kyoto, M. Nose, T. Iyemori, M. Sugiura, T. Kamei, A. Matsuoka, S. Imajo, and T. Kotani (2015), Geomagnetic Dst index, doi:10.17593/14515-74000",
  "licenseURL": "https://wdc.kugi.kyoto-u.ac.jp/wdc/Sec3.html",
  "parameters": [
    {
      "name": "Time",
      "type": "isotime",
      "units": "UTC",
      "fill": null,
      "length": 24,
      "label": "Time"
    },
    {
      "name": "dstValue",
      "type": "integer",
      "units": "nT",
      "fill": "99999",
      "label": "Dst",
      "description": "Dst index value (provisional)."
    },
    {
      "name": "versionCode",
      "type": "integer",
      "units": null,
      "fill": null,
      "label": "Version Code",
      "description": "Processing status code Mm (M: 0=real-time,1=provisional,2=final; m=minor, the recalculation generation within the same major: 0=first conversion, 1 and above=reconverted after the source changed)."
    }
  ],
  "x_LastUpdate": "2026-09-23T15:05:45Z"
}