GRACE Atmosphere and Ocean De-aliasing: Spherical Harmonic Coefficients

GRACE Atmosphere and Ocean De-aliasing Release 6.0 provides spherical harmonic coefficients of combined barotropic or baroclinic sea level and vertical integrated pressure variations at a 6-hour sample rate. The dataset is produced by NASA and serves as a correction product for Level 2 GRACE datasets. It was last updated on March 13, 2026.

Use Cases

• Correcting GRACE Level 2 gravity field data based on atmospheric and oceanic mass variations.
• Analyzing barotropic and baroclinic sea level pressure variations based on spherical harmonic coefficients.
• Studying integrated pressure variations over time based on the 6-hour sampling rate.
• Modeling ocean bottom pressure dynamics based on the described geophysical parameters.

Strengths

• Data is provided at a 6-hour sample rate, offering temporal granularity.
• Produced by NASA, indicating authoritative institutional provenance.
• Last updated on March 13, 2026, suggesting ongoing maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal or spatial bias inherent to the GRACE mission's coverage.

Provenance

Source

National Aeronautics and Space Administration

Freshness

Last updated 2026-03-13 01:41:12.571760; freshness should be verified.