TOMSEPOVP: Daily Ground Station Atmospheric Measurements

NASA's Earth Probe Total Ozone Mapping Spectrometer (TOMS) Version 8 daily ground station overpass data provides total column ozone, UV aerosol index, and sulfur dioxide index values. The dataset contains the best-matched satellite field-of-view measurement for specific ground sites for each operational day. Data were produced by the Laboratory for Atmospheres at NASA Goddard Space Flight Center and are stored in ASCII format.

Use Cases

• Monitoring long-term ozone layer trends based on total column ozone measurements.
• Tracking atmospheric aerosol transport and volcanic plumes using the UV aerosol index.
• Validating satellite atmospheric retrievals against ground-based station data.
• Analyzing sulfur dioxide emissions from volcanic or industrial sources.

Strengths

• Produced by NASA Goddard Space Flight Center's Laboratory for Atmospheres (Code 614), indicating authoritative provenance.
• Provides daily, site-specific overpass data for the instrument's entire operational lifetime, offering a consistent time series.
• Contains multiple validated atmospheric indices (ozone, aerosol, sulfur dioxide) in a single product.

Limitations

• Metadata completeness is low; specific column names, row counts, and file sizes are not provided on any platform.
• Conflicting freshness: one source lists a last update in 2005, while others list 2026, suggesting potential metadata errors.
• Documentation gaps exist; the specific 'other-license-specified' is not detailed.

Provenance

Source

Laboratory for Atmospheres, NASA Goddard Space Flight Center (Code 614).

Collection Method

Derived from the best-matched Earth Probe TOMS satellite field-of-view to specific ground station sites.

Time Range

The operational period of the Earth Probe TOMS instrument (dates not specified in input).

Freshness

2026-04-09 21:45:02.518973 (from datagov), but conflicts with a 2005 date from nasa_earthdata.

Geography

Global coverage at specific ground station locations (sites not specified in input).