GEOS-5 Atmospheric Diagnostics Geo-Colocated to OMI Satellite Swaths

Selected parameters from the GEOS-5 Forward Processing for Instrument Teams assimilated product, co-located in space and time with the OMI/Aura satellite's UV-2 swath. The product includes boundary layer top pressure, tropopause pressure, surface pressure, surface skin temperature, and vertical wind profiles at 10m. It was generated by the Global Modeling and Assimilation Office for use by the OMI/Aura team in their L2 algorithms and related research.

Use Cases

• Analyzing boundary layer top pressure and tropopause pressure alongside satellite retrievals to study atmospheric layer dynamics.
• Correlating surface skin temperature and surface pressure from the model with satellite data for surface-atmosphere interaction studies.
• Investigating vertical wind profiles at 10m in relation to satellite-measured atmospheric constituents.
• Using the co-located GEOS-5 parameters as ancillary input for Level-2 satellite retrieval algorithm refinement.

Strengths

• Parameters are geo-colocated to the OMI UV-2 swath's 13km x 24km nadir resolution.
• Individual data files are approximately 45mb in size, facilitating manageable transfer and storage.
• Data is provided in netCDF4 format, compatible with most netCDF and HDF5 readers.

Limitations

• The spatial resolution of the original GEOS-5 FP-IT data (0.625° longitude by 0.5° latitude) differs from the satellite's native resolution, requiring interpolation.
• Specific temporal coverage, total volume, and update frequency are not provided.

Provenance

Source

Global Modeling and Assimilation Office (GMAO) GEOS-5 Forward Processing for Instrument Teams assimilated product.

Collection Method

Parameters selected from the GEOS-5 FP-IT product and co-located in space and time with the OMI/Aura UV-2 swath.

Geography

Global coverage corresponding to OMI/Aura satellite swaths.