OMVFPITMET: GEOS-5 Atmospheric Model Data Co-located with OMI/Aura Satellite Swaths

NASA's Global Modeling and Assimilation Office (GMAO) provides this product, which co-locates GEOS-5 FP-IT assimilated atmospheric parameters with the OMI/Aura VIS instrument's orbital swath. It includes surface pressure, temperature and wind profiles, tropopause pressure, and other fields, with data reduced from 72 to 47 vertical layers for file size efficiency. Each orbital file is approximately 45MB in netCDF4 format.

Use Cases

• Improving satellite-based atmospheric retrievals based on co-located model temperature and pressure profiles.
• Studying troposphere-stratosphere interactions based on tropopause and boundary layer pressure data.
• Analyzing wind patterns and their vertical structure based on surface and vertical wind profiles.
• Validating or calibrating global weather models based on spatially and temporally matched satellite observation points.

Strengths

• Data is spatially and temporally co-located with specific OMI/Aura satellite swaths, facilitating direct comparison.
• Vertical dimension is optimized from 72 to 47 layers, reducing file size while retaining tropospheric detail.
• Files are in netCDF4 format, which is compatible with most HDF5 readers and scientific tools.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA), Global Modeling and Assimilation Office (GMAO)

Collection Method

Parameters from the GEOS-5 FP-IT assimilated product are co-located in space and time with the OMI VIS swath.

Time Range

Temporal coverage is likely tied to the OMI/Aura satellite mission timeline.

Freshness

Last updated 2026-03-13 02:42:40.718857; freshness should be verified.

Geography

Global coverage, following the orbital swath of the OMI/Aura satellite instrument.