OMPS-N21: Daily Global Ozone Vertical Profiles from NOAA-21 Satellite

Global (-90 to 90 degrees latitude) vertical profiles of atmospheric ozone are measured by the OMPS Limb-Profiler sensor aboard the NOAA-21 satellite. The dataset provides daily swath data from approximately 14.5 orbits, with profiles derived from the center slit of three, covering altitudes from the ground up to about 60 km. Data is stored in HDF5 format and includes ozone concentration values with associated errors for the stratosphere and lower mesosphere.

Use Cases

• Monitoring stratospheric ozone layer health based on vertical concentration profiles.
• Validating atmospheric chemistry models using global, altitude-resolved satellite measurements.
• Analyzing daily ozone variability with data from approximately 14.5 orbits per day.
• Studying the vertical resolution of ozone distribution, which is approximately 1.8 km.

Strengths

• Provides global spatial coverage from -90 to 90 degrees latitude.
• Offers high vertical resolution for ozone profiles, approximately 1.8 km.
• Data is collected daily from a dedicated satellite instrument (OMPS LP on NOAA-21).

Limitations

• Column names and a complete data schema are not provided in the available metadata.
• Conflicting metadata exists: one source lists an 'other-license-specified' and an organization (GES_DISC), while another lists no license, author, or organization.
• The exact data volume (size, row count) and granular temporal range are unknown.

Provenance

Source

GES_DISC (Goddard Earth Sciences Data and Information Services Center)

Collection Method

Satellite remote sensing via the Ozone Mapping and Profiling Suite (OMPS) Limb-Profiler sensor on NOAA-21.

Time Range

Daily collection; specific start and end dates are not provided.

Freshness

2026-04-09 23:27:27.692409

Geography

Global (-90 to 90 degrees latitude)