OML1BRUZ: Aura OMI UV Zoom-in Geolocated Radiances

OMI/Aura Level 1B UV Zoom-in Geolocated Earthshine Radiances (OML1BRUZ) Version-3 contains geo-located spectral radiance measurements from the Ozone Monitoring Instrument's ultraviolet detectors. Data is collected in a specialized zoom-in mode, covering wavelengths from 264 to 383 nm across 60 ground pixels per swath, with each file representing roughly 60 minutes of daylight orbit data. Files are stored in HDF-EOS format, with radiance values encoded as a 16-bit mantissa and 8-bit exponent.

Use Cases

• Calibrating atmospheric models based on high-resolution UV spectral radiance measurements.
• Analyzing spatial patterns of ozone and trace gases using the 13 km x 24 km nadir pixel observations.
• Developing retrieval algorithms for atmospheric constituents using the precision-encoded signal data.
• Studying diurnal and orbital variations in Earth's UV reflectance from the day-lit orbit segments.

Strengths

• Provides high spatial resolution data with 60 ground pixels (13 km x 24 km at nadir) per swath in zoom-in mode.
• Data is structured with precision encoding, storing radiance as a 16-bit mantissa and 8-bit exponent.
• Cross-platform presence on NASA Earthdata and Data.gov signals its importance and institutional backing.

Limitations

• Column names and a complete data schema are not provided in any source description.
• Spatial zoom-in measurements are performed only one day per month, limiting temporal frequency for that mode.
• Metadata for size, row count, and author is inconsistent or missing across platforms.

Provenance

Source

GES DISC (Goddard Earth Sciences Data and Information Services Center), NASA.

Collection Method

Collected by the Aura satellite's Ozone Monitoring Instrument (OMI) using spectral and spatial zoom-in measurement modes.

Time Range

null

Freshness

2026-04-09 23:17:54.288184

Geography

Global coverage from satellite orbits.