{"dataset":{"slug":"geomagnetic-indices","title":"Geomagnetic Indices","description":"Space-weather indices and scales — Kp, Dst, and the NOAA G/S/R scales.","version":"1.0.0","lastGenerated":"2026-06-29","license":"CC BY-SA 4.0","entityCount":5,"sources":["noaa"]},"entities":[{"id":"geomagnetic_index:dst-index","name":"Dst Index","type":"geomagnetic_index","domain":"science","description":"The Disturbance storm-time index, which tracks the strength of the equatorial ring current and so measures the intensity of a geomagnetic storm — the more negative the Dst, the stronger the storm.","entryPath":"/space-environment/dst-index"},{"id":"geomagnetic_index:kp-index","name":"Kp Index","type":"geomagnetic_index","domain":"science","description":"A global index of geomagnetic activity, derived from magnetometer readings and reported every three hours on a scale of 0 (quiet) to 9 (extreme storm). Kp is the standard measure used to forecast auroras and satellite disturbances.","entryPath":"/space-environment/kp-index"},{"id":"geomagnetic_index:noaa-g-scale","name":"NOAA G-Scale (Geomagnetic Storms)","type":"geomagnetic_index","domain":"science","description":"NOAA's five-level scale for the severity of geomagnetic storms, from G1 (minor) to G5 (extreme), describing the expected effects on power grids, satellites, and navigation.","entryPath":"/space-environment/noaa-g-scale"},{"id":"geomagnetic_index:noaa-r-scale","name":"NOAA R-Scale (Radio Blackouts)","type":"geomagnetic_index","domain":"science","description":"NOAA's five-level scale for radio blackouts caused by solar-flare X-rays ionising the dayside upper atmosphere, from R1 (minor) to R5 (extreme).","entryPath":"/space-environment/noaa-r-scale"},{"id":"geomagnetic_index:noaa-s-scale","name":"NOAA S-Scale (Solar Radiation Storms)","type":"geomagnetic_index","domain":"science","description":"NOAA's five-level scale for solar radiation (energetic-particle) storms, from S1 to S5, describing the radiation hazard to astronauts, high-altitude flights, and spacecraft.","entryPath":"/space-environment/noaa-s-scale"}]}