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

Propagated solar wind and tri-axial fluxgate magnetometer data from the Wind satellite, processed to a 60-second resolution in GSM coordinates. The dataset was constructed by Dr. J.M. Weygand for Prof. R.L. McPherron under NSF grants and includes a corrected version to address an instrument offset discovered after November 2004. It uses a propagation method based on the minimum variance technique to estimate delay times from the satellite to a point near Earth's bow shock.

Use Cases

• Modeling solar wind propagation delays to Earth's magnetosphere based on the described minimum variance technique.
• Analyzing correlations between interplanetary magnetic field (IMF) components and magnetospheric activity using the 1-minute resolution data.
• Conducting superposed epoch studies of space weather events using the propagated and interpolated solar wind parameters.
• Validating or improving solar wind propagation algorithms by comparing with the Weimer method outlined in the referenced papers.

Strengths

• Data is processed to a consistent 1-minute resolution through linear interpolation, facilitating time-series analysis.
• Includes a version with a documented correction applied to the Wind MFI Bz component to address a known post-2004 offset.
• Propagation methodology is explicitly referenced to peer-reviewed publications (Weimer et al., 2003, 2004).
• Dataset was developed under specific National Science Foundation grants (ATM 02-1798, ATM 02-08501), indicating a research-grade origin.

Limitations

• The propagation method is noted to not work well for shocks and for minimum variance directions with tilts greater than 70 degrees from the sun-earth line.
• Column-level documentation is absent; field semantics and data structure must be inferred after download.
• Row count and total temporal coverage are unknown, which may limit suitability assessment for large-scale studies.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Data from the Wind satellite's fluxgate magnetometer, 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 03:48:03.905029; freshness should be verified.

Geography

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