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The catalog "Sector Boundaries in the Solar Wind 1947- 1982" was compiled via geomagnetic observations and updated with spacecraft measurements. Sector boundaries are the times observed at Earth when the polarity of the interplanetary magnetic field (IMF) reverses. Well defined sector boundaries are those boundaries for which there is good data, the reversal takes place cleanly, and intervals on either side of the boundary have a uniform field direction for ~4 days.
Version:2.7.2
Version:2.7.2
The catalog "Sector Boundaries in the Solar Wind 1947- 1982" was compiled via geomagnetic observations and updated with spacecraft measurements. Sector boundaries are the times observed at Earth when the polarity of the interplanetary magnetic field (IMF) reverses. Well defined sector boundaries are those boundaries for which there is good data, the reversal takes place cleanly, and intervals on either side of the boundary have a uniform field direction for ~4 days.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | Author | spase://SMWG/Person/Philip.H.Scherrer | |||
| 2. | CoInvestigator | spase://SMWG/Person/Edward.J.Smith | |||
| 3. | MetadataContact | spase://SMWG/Person/Olga.Y.Uritskaya |
The composite polarity (the computed daily polarity plus the inferred daily polarity replacing the missising data) daily polarity distributions by using a modified definition of the "well-defined" sector boundary. Here "+" refers to a UT day of outward polarity; "-" to a day of inward polarity and ":" to a day of mixed polarity.