TOMSEPL3dtoz: Daily Global Ozone Grids from Earth Probe Satellite

NASA's Earth Probe satellite mapped daily total ozone across a global grid of 51,840 cells (180 x 288). This version 8 dataset provides a consistent record of atmospheric ozone concentration at a 1.00 x 1.25 degree latitude/longitude resolution. Data are stored in ASCII format and were produced by the Laboratory for Atmospheres at NASA Goddard Space Flight Center.

Use Cases

• Tracking ozone hole formation and recovery based on daily global gridded measurements.
• Validating atmospheric chemistry models using satellite-derived total column ozone values.
• Analyzing long-term ozone trends across specific geographic regions using the 1.00 x 1.25 degree grid.
• Studying the relationship between ozone levels and other atmospheric parameters in a geospatial context.

Strengths

• Provides a consistent, daily global snapshot with a defined grid size of 180 x 288 cells.
• Originates from an authoritative source: NASA Goddard Space Flight Center's Laboratory for Atmospheres.
• Is hosted on multiple platforms (NASA Earthdata, Data.gov), indicating established use and importance.

Limitations

• Conflicting 'last updated' metadata: one source shows 2005-12-14, another shows 2026-04-09, casting doubt on data currency.
• Specific column names and data formats beyond 'ASCII' are not documented in the provided metadata.
• The exact temporal coverage (start and end dates) of the data record is not specified.

Provenance

Source

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

Collection Method

Satellite remote sensing via the Earth Probe (EP) Total Ozone Mapping Spectrometer (TOMS).

Freshness

2026-04-09 21:44:58.485791

Geography

Global coverage on a 1.00 x 1.25 degree latitude/longitude grid.