Wind SWE Weimer Propagated: Solar Wind Data at 60-Second Resolution in GSM Coordinates

Propagated solar wind data interpolated to a 60-second resolution in Geocentric Solar Magnetospheric (GSM) coordinates. The dataset was constructed by Dr. J.M. Weygand for Prof. R.L. McPherron under National Science Foundation grants and uses a minimum variance technique for propagation. It was last updated on March 13, 2026.

Use Cases

• Superposed epoch analysis of magnetospheric events based on high-resolution solar wind parameters.
• Modeling the propagation delay of the interplanetary magnetic field (IMF) using the described minimum variance technique.
• Correlating solar wind conditions with geomagnetic activity based on data positioned near the bow shock.

Strengths

• Data is processed to a consistent 60-second temporal resolution.
• Propagation method is documented in peer-reviewed publications (Weimer et al., 2003, 2004).
• Data is positioned just outside the nominal bow shock (~17 Earth radii).

Limitations

• The propagation method reportedly does not work well for shocks and minimum variance directions with tilts greater than 70 degrees from the sun-earth line.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Solar wind data propagated using a minimum variance technique and linearly interpolated to 1-minute resolution.

Time Range

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Freshness

Last updated 2026-03-13 03:49:54.248966; freshness should be verified.

Geography

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