About the Products

JoSFRA Level 2 Products

The primary JoSFRA Level-2 retrieval products include temperature and water vapor profiles, cloud properties, and surface temperature, as well as observation metadata for six minutes of instrument observations at a time. Using single-footprint AIRS spectra results in a horizontal resolution of ∼13.5 km at nadir. AIRS observations have provided near-global coverage twice daily (around 1:30 AM and PM local time) since mission launch in 2002. The initial JoSFRA data release contains a limited subset of results from AIRS observations. JoSFRA products have been annotated with both file and variable level attributes to fully describe their contents. Further information about the JoSFRA data products can be found in the JoSFRA Level-2 Product User Guide.

Data Holdings

For the initial release of Version 2 JoSFRA, a limited test data set is provided. Future releases may expand the dataset.

The initial dataset includes:

• Full global coverage data for two 5-day periods: January 13-17, 2011; and July 13-17, 2011.
• Marine ARM GPCI Investigation of Clouds (MAGIC) Field Campaigns, 2012 – 2013.
• Selected granules from the years 2002-2007 where correlative data were available. The dots in the map in Figure 1.2 show the center of coincident AIRS granules. The locations include Dept. of Energy Atmospheric Radiation Measurement (ARM) sites at the North Slope of Alaska (NSA), Southern Great Plains (SGP), and Tropical Western Pacific (TWP), as well as scientific field campaigns.
• Granules from May to August from the years 2009 – 2019 for an 8 deg lon X 4.5 deg lat box bounded by: (32N, -92W), (36.5N, -84W)

Additional JoSFRA data requests for consideration can be made at:

https://airs.jpl.nasa.gov/data/support/ask-airs

Alternatively, an email can be sent to: askairs@jpl.nasa.gov

When submitting a JoSFRA processing request for consideration, please include the following information:

• Science study, field campaign (if applicable), temporal and spatial information such as bounding box, dates (year/month/day), AIRS granule numbers (if known)

Each request will be evaluated individually due to the time and amount of resources needed to process JoSFRA.