OMUFPMET: GEOS-5 Atmospheric Model Data Co-Located with OMI/Aura Satellite Swaths

The OMUFPMET product provides selected meteorological fields from the GEOS-5 FP-IT assimilated model, co-located in space and time with the OMI/Aura UV-2 satellite swath. Each file is approximately 45mb in size and is stored in netCDF4 format, which is compatible with most netCDF and HDF5 readers. The product was developed by the Global Modeling and Assimilation Office (GMAO) and is led by Zachary Fasnacht of SSAI, with Joanna Joiner as the responsible NASA official.

Use Cases

• Validate satellite-derived atmospheric measurements based on co-located model fields like temperature profiles.
• Assimilate meteorological data into climate models based on layer pressure thickness and surface pressure fields.
• Analyze spatial correlation between model grids and satellite observations based on the 0.625° x 0.5° grid and 13x24km swath resolution.
• Study atmospheric column composition using supplementary geolocation and pressure information provided with OMI L1B data.

Strengths

• Data is co-located in space and time with the OMI UV-2 satellite swath, facilitating direct comparison.
• Files are in netCDF4 format, which is widely supported by scientific tools and libraries.
• Each file is approximately 45mb in size, indicating a manageable data volume for analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical analysis.

Provenance

Source

Global Modeling and Assimilation Office (GMAO) at NASA.

Collection Method

Fields from the GEOS-5 Forward Processing for Instrument Teams (FP-IT) assimilated product, geo-colocated to the OMI/Aura UV-2 swath.

Time Range

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Freshness

Last updated 2026-03-13 02:31:36.323776; freshness should be verified.

Geography

Global, based on OMI/Aura satellite orbits and a 0.625° longitude by 0.5° latitude model grid.