Geotail Weimer Propagated Solar Wind Magnetic Field Data at 60-Second Resolution

Propagated solar wind data interpolated to 60-second resolution for superposed epoch studies. The data was constructed by Dr. J.M. Weygand for Prof. R.L. McPherron under NSF grants ATM 02-1798 and ATM 02-08501. The propagation method uses a minimum variance technique outlined in publications by Dan Weimer et al. from 2003 and 2004.

Use Cases

• Analyzing solar wind propagation delays to Earth's bow shock based on the minimum variance technique described.
• Studying magnetic field variations in GSE coordinates at 1-minute resolution.
• Conducting superposed epoch studies of magnetospheric events using propagated solar wind parameters.
• Investigating the limitations of propagation methods for shocks and high-tilt conditions mentioned in the description.

Strengths

• Data is linearly interpolated to a consistent 60-second temporal resolution.
• Propagation method is documented with specific references to peer-reviewed publications (Weimer et al., 2003, 2004).
• Data was created for funded NSF research projects (ATM 02-1798 and ATM 02-08501).

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

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

Freshness

Last updated 2026-03-13 03:57:44.604634; freshness should be verified.