Anomalous short-period pulsations in GOES magnetometer data before solar proton events

Details Anomalous short-period pulsations in GOES magnetometer data before solar proton events Anomalous short-period pulsations in GOES magnetometer data before solar proton events

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..131..395c&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 131, Feb. 1991, p. 395-406. NOAA-supported research.

Physics

Geomagnetic Pulsations, Magnetometers, Solar Flares, Solar Protons, Earth Rotation, Goes Satellites, Solar Cosmic Rays, Solar X-Rays

Scientific paper

Through spectral analysis GOES magnetometer data, anomalous short-period pulsations occurring prior to solar proton events were found. The characteristics of these pulsations are: (1) both the He (earthward) and Hn (eastward) components of the geomagnetic field show the occurrence of pulsations on the same day, and (2) the period of pulsation of He and Hn is greater than 48 s. For large events, this signature may occur up to two weeks prior to the solar proton event. It is suggested that this signature may provide a new tool in the forecasting of solar proton events.

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