Daily nowcast Ap index

Last modified at Oct 8th, 2024, 13:00 GMT

Description

Daily sub-auroral geomagnetic activity indicator provided by GFZ Potsdam, Germany. The near real-time computation is based on 1-minute geomagnetic data from the contributing observatories. The quiet magnetic field is subtracted and the remaining disturbance is translated into K value. The K values are standardized at each observatory to obtain Ks values, from which Kp value is derived as a mean. The ap index is obtained as a linear scale representation of Kp according to a mapping table. The Ap index is the daily mean of the eight values of 3-hourly ap indices.

Capabilities

  • Nowcast Ap index, near-real time computation

    MagneticField
    Observed Property
    MagneticField
    Dimensionality Instance
    0D
    Dimensionality Timeline
    1DTimeseries
    Cadence
    Every day

Data Levels

Further Information and Resources

Resources

More Properties

Property Value
Algorithm Not used
Software Reference Not used
Metadata Information
Editor GFZ German Research Centre for Geosciences
Version 2
Created Monday 24th April 2023, 15:00
Last Modified Tuesday 8th Oct. 2024, 13:00