ACOS GOSAT/TANSO-FTS: Bias-Corrected Atmospheric CO2 Measurements

Bias-corrected column-averaged dry air mole fraction of Carbon Dioxide (XCO2) data derived from satellite spectral radiances. The dataset is produced by the NASA OCO Project using Level 1B data from the JAXA GOSAT TANSO-FTS instrument. Version 9r is the current version, with older versions superseded.

Use Cases

• Monitoring global atmospheric CO2 levels based on satellite-derived XCO2 measurements
• Analyzing spatial and temporal trends in carbon dioxide based on daily aggregated files
• Validating and improving carbon cycle models based on bias-corrected column-averaged data
• Assessing satellite retrieval performance for greenhouse gases based on the full-physics retrieval process

Strengths

• Current version (9r) supersedes all older versions, ensuring users access the latest processing.
• Data is derived from calibrated spectral radiances from the GOSAT TANSO-FTS instrument, a dedicated greenhouse gas observatory.
• Products are aggregated as daily files, likely facilitating time-series analysis.

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 geographic/temporal bias inherent to the satellite's coverage.

Provenance

Source

National Aeronautics and Space Administration (NASA) OCO Project.

Collection Method

Derived from Level 1B data products from the JAXA GOSAT TANSO-FTS instrument, augmented with additional geolocation and corrections.

Freshness

Last updated 2026-03-12 19:36:51.848163; freshness should be verified.