Space Physics
福布什下降
Forbush DecreaseA rapid decrease in the observed intensity of galactic cosmic rays (GCR) following a passage of a coronal mass ejection (CME) or interplanetary shock wave. / 一种在日冕物质抛射（CME）或行星际激波通过后，观测到的银河宇宙射线（GCR）强度迅速下降的现象。
- Knowledge type
- 自然理论
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-11-15 18:06:38
Sub-knowledge points
Short-term cosmic ray variationsResponse of cosmic ray intensity to solar wind conditionsRelationship between cosmic ray transport and geomagnetic activity
Higher-order knowledge points
Galactic Cosmic Ray (GCR) IntensitySolar Cycle ModulationSpace Weather Variations
Main parameters and performance indicators
magnitude: The depth of the intensity decreasetiming: The onset and duration of the decreaserecovery: The rate at which cosmic ray intensity returns to pre-storm levels
Open problems
Precise prediction of the magnitude and recovery time of Forbush decreasesUnderstanding the detailed transport mechanisms of cosmic rays in turbulent solar wind
Related literature
ranked by community starsAnalysis of Cosmic Ray Intensity Variations During Geomagnetic Storms and Interplanetary Disturbances in the Declining Phase of Solar Cycle 24Open source
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Creation and modification trail
1 recordsRecord title: Forbush Decrease.
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