Geomagnetic index · 0–9

Kp Index

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.

Environment & effects

Related:Geomagnetic Storm

Knowledge connections

Associated withGeomagnetic Storm
Associated withGeomagnetic Storm

Sources

The primary and reference sources this topic draws on.

NOAA Solar CalculatorNOAA Global Monitoring Laboratory
Public-domain solar-position geometry: sunrise, sunset, solar noon, twilight, declination, and the equation of time.
Public domain (US Government work).