Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Capable of causing a geomagnetic disturbance

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From geo- +‎ effective

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Examples

  • Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (18 April) due to a geoeffective coronal hole wind stream and possible glancing effects from the 13 April CME.

    SpaceRef Top Stories

  • An analysis of the activity indicate the source is likely a backside event and not expected to be geoeffective.

    SpaceRef Top Stories

  • Isolated active periods are possible at high latitudes during this period, as a recurrent coronal hole high speed stream becomes geoeffective late on 18 January.

    SpaceRef - Calendar of Events

  • Conditions should increase to quiet to unsettled late on 18 January and last through 19 January, as a recurrent coronal hole rotates into a geoeffective position.

    SpaceRef - Calendar of Events

  • (05 - 06 August) as a recurrent coronal hole high speed stream becomes geoeffective.

    SpaceRef Top Stories

  • Conditions are expected to increase to quiet to unsettled levels with a slight chance for isolated active periods as a recurrent coronal hole becomes geoeffective early on day three (05 Dec).

    SpaceRef Top Stories

  • October as the high speed stream continues to be geoeffective.

    SpaceRef Top Stories

  • October as the high speed stream continues to be geoeffective.

    SpaceRef Top Stories

  • October as the high speed stream continues to be geoeffective.

    SpaceRef Top Stories

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