SOHO/MDI: Solar Magnetic Field Measurements

Line of sight magnetic field data inferred from Zeeman splitting of magnetically-sensitive spectral lines. The dataset originates from the SOHO/MDI instrument and is provided by the National Aeronautics and Space Administration. The last metadata update was recorded on March 13, 2026.

Use Cases

• Model solar magnetic activity based on Zeeman splitting measurements
• Analyze line-of-sight magnetic field variations over time
• Correlate magnetic field data with other solar observations

Strengths

• Data is from a major space agency (NASA)
• Last metadata update indicates ongoing curation

Limitations

• 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

Freshness

Last updated 2026-03-13 11:28:42.502535; freshness should be verified