Sounder SIPS: Sun Synchronous 13:30 orbit Climate Hyperspectral InfraRed Product (CHIRP): Calibrated Radiances from EOS-Aqua, S-NPP, JPSS-1/NOAA-20, V2 (SNDR13CHRP1) at GES DISC

Description

The Climate Hyperspectral Infrared Radiance Product (CHIRP) is a Level 1 radiance product derived from Atmospheric Infrared Sounder (AIRS) on EOS-AQUA and the Cross-Track Infrared Sounders (CrIS) on the SNPP and JPSS-1+ platforms. (JPSS-1 is also called NOAA-20). CHIRP provides a consistent spectral response function (SRF) across all instruments. Inter-instrument radiometric offsets are removed with SNPP-CrIS chosen as the "standard". CHIRP follows the original instrument storage, i.e., granule in, granule out, and contains all information needed for retrievals (including cross-track, along-track, fov id, etc.). This version of CHIRP, SNDR13CHRP1, is the primary CHIRP product which provides a full radiance record from 2002 onwards starting with AIRS from September 1, 2002 to August 30, 2016, switching to the SNPP CrIS instrument on September 1, 2016. The SNDR13CHRP1 product then switches to using JPSS-1 CrIS radiances starting September 1, 2018. This selection of time periods provides the best match to times when the microwave sounders on each of these platforms exhibited good performance and avoids long outages (such as SNPP CrIS in early Spring 2019). CHIRP is available for AIRS, CrIS-SNPP, and CrIS-JPSS-1 for time periods not used in the product distributed here, and are named SNDR13CHRP1AQCal, SNDR13CHRP1SNCal, and SNDR13CHRP1J1Cal respectively.

Resources

Name Format Description Link
34 Sample image of an SNDR13CHRP1 v2 radiances converted to brightness temperature units. https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/SNDR13CHRP1.v2.png
21 Access the data via HTTPS. https://sounder.gesdisc.eosdis.nasa.gov/data/CHIRP/SNDR13CHRP1.2
21 Access the data via the OPeNDAP protocol. https://sounder.gesdisc.eosdis.nasa.gov/opendap/CHIRP/SNDR13CHRP1.2
21 AIRS Documentation Page https://disc.gsfc.nasa.gov/information/documents?title=AIRS+Documentation
33 README Document https://docserver.gesdisc.eosdis.nasa.gov/public/project/Sounder/README.CHIRP.L1.V2.pdf
33 Algorithm Theoretical Basis Document https://docserver.gesdisc.eosdis.nasa.gov/public/project/Sounder/ATBD.CHIRP.L1.pdf
21 AIRS home page at NASA/JPL. General information on the AIRS instrument suite, algorithms, and other AIRS-related activities can be found. https://airs.jpl.nasa.gov/index.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FWIG2N5C20MRJ
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/SNDR13CHRP1_2.html
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=SNDR13CHRP1+2

Tags

  • infrared-wavelengths
  • aerosols
  • atmosphere
  • atmospheric-chemistry
  • spectral-engineering
  • earth-science

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