TOMSEPL3dery: Daily Global UV-B Irradiance on a 1-Degree Grid

NASA's Earth Probe Total Ozone Mapping Spectrometer (TOMS) Version 8 provides daily global measurements of UV-B erythemal local noon irradiance. Data are mapped to a consistent 180 x 288 cell grid with a 1.00 x 1.25 degree latitude/longitude resolution and stored in ASCII format. This dataset was produced by the Laboratory for Atmospheres at NASA Goddard Space Flight Center.

Use Cases

• Tracking global UV-B exposure trends based on daily gridded irradiance values.
• Modeling atmospheric chemistry and ozone dynamics using consistent spatial data.
• Assessing potential health and environmental risks from ultraviolet radiation levels.
• Validating climate and atmospheric models against satellite-derived radiation measurements.

Strengths

• Provides a consistent global spatial grid of 51,840 cells (180 x 288) for direct comparison.
• Data originates from the authoritative NASA Goddard Space Flight Center (Code 614).
• Available on multiple platforms, indicating established use and importance.

Limitations

• Metadata conflict: last update dates are inconsistent (2005 on NASA Earthdata vs. 2026 on Data.gov).
• Column names and specific data formats (beyond ASCII) are not detailed in the provided metadata.
• The dataset's temporal coverage (start and end dates) is not specified.

Provenance

Source

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

Collection Method

Satellite measurements from the Earth Probe Total Ozone Mapping Spectrometer (TOMS) instrument.

Freshness

2026-04-09 21:44:41.199401 (from Data.gov, but conflicts with NASA Earthdata date)

Geography

Global, gridded to 1.00 x 1.25 degree latitude/longitude resolution.