SAFARI 2000: Ground-based Aerosol Measurements from Southern Africa

AERONET's globally standardized network of sun-sky radiometers provides near-real-time, column-integrated aerosol data. Measurements from several sites in southern Africa during August-September 2000 support the SAFARI 2000 dry season aircraft campaign. The data includes three processing levels, from unscreened to quality-assured, for validating satellite retrievals and assessing aerosol optical properties.

Use Cases

• Validating satellite aerosol optical depth retrievals based on standardized ground-truth measurements.
• Assessing aerosol size distribution and type in diverse geographic regimes based on spectral optical depth data.
• Studying column-integrated precipitable water content in the atmosphere based on sun-sky radiometer observations.
• Analyzing temporal trends in aerosol loading during a specific dry season campaign based on time-series data from multiple sites.

Strengths

• Data is produced by a globally distributed, standardized network (AERONET) ensuring instrument and calibration consistency.
• Provides three levels of data processing (Level 1.0 unscreened to Level 2.0 quality-assured) for different research needs.
• Supported by NASA's Earth Observing System and a federation of international agencies and universities.

Limitations

• Specific row count, file size, and complete column schema are unavailable from the provided sources.
• Real-time data versions are unscreened and may lack final calibration reprocessing, as noted in the description.
• The 'last updated' metadata conflicts between sources (2001 on nasa_earthdata vs. 2026 on datagov), suggesting potential platform synchronization issues.

Provenance

Source

National Aeronautics and Space Administration (NASA) and the AERONET federation (including PHOTON, AEROCAN, and other partners).

Collection Method

Collected by an identical network of automatic, ground-based sun-sky scanning spectral radiometers.

Time Range

August-September 2000 (for the SAFARI 2000 campaign subset).

Freshness

2026-04-09 (from datagov), though this conflicts with the 2001 date from nasa_earthdata.

Geography

Southern Africa region, with data from several specific sites.