Optical Thickness Calibration Study for Aerosol Measurement

NASA's Optical Thickness Calibration study compares aerosol optical thickness measurements from three groups using different instruments and analysis procedures. Data formats include HTML, PDF, PNG, BIN, ISO, and ZIP files. The study was conducted as part of the FIFE project, with metadata last updated in 2026, though the underlying data dates from 1989.

Use Cases

• Comparing aerosol optical thickness derived from a solar transmissometer SXM-2, a Reagan sunphotometer, and an airborne tracking sunphotometer.
• Evaluating the consistency of three different analysis procedures for atmospheric transmission data.
• Calibrating ground-based and airborne sunphotometer measurements for aerosol studies.
• Supporting the validation of satellite-derived aerosol optical depth products.

Strengths

• Cross-platform presence on Data.gov and NASA EarthData indicates recognized importance.
• Data collection involved a direct comparison of measurements from at least three distinct instrument groups.
• Includes multiple data formats (HTML, PDF, PNG, BIN, ISO, ZIP) suggesting varied documentation and raw data.

Limitations

• Core column names and specific row/record counts are not provided by any source.
• Conflicting dates exist: the underlying data is from 1989, but metadata was updated in 2026, creating ambiguity about data freshness.
• License is ambiguously listed as 'other-license-specified' without clear terms.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Comparative field measurements using at least three different sunphotometer instruments and three analysis procedures.

Time Range

1989

Freshness

2026-03-12 22:54:42.888057

Geography

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