ACRIM III: Satellite-Measured Total Solar Irradiance Shutter Cycle Data

Level 2 total solar irradiance data in the form of shutter cycles gathered by the Active Cavity Radiometer Irradiance Monitor (ACRIM) III instrument on the ACRIMSAT satellite. The dataset is produced by the National Aeronautics and Space Administration (NASA). The record was last updated on March 12, 2026.

Use Cases

• Modeling long-term solar irradiance trends based on satellite-measured total solar irradiance.
• Analyzing solar cycle variability based on shutter cycle data.
• Validating climate model inputs based on direct solar energy measurements.
• Studying the Sun's influence on Earth's energy budget based on total solar irradiance records.

Strengths

• Produced by the authoritative source, the National Aeronautics and Space Administration (NASA).
• Data is specifically for total solar irradiance, a key climate variable.
• Record was last updated on March 12, 2026, indicating recent metadata activity.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The license is listed as 'other-license-specified', requiring manual review of terms.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Gathered by the ACRIM III instrument on the ACRIMSAT satellite.

Time Range

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Freshness

Last updated 2026-03 12 22:04:44.716920; freshness should be verified.

Geography

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