Suomi NPP CrIS Level 1B Full Spectral Resolution V2 (SNPPCrISL1B) at GES DISC

Description

The Cross-track Infrared Sounder (CrIS) Level 1B Full Spectral Resolution (FSR) data files contain radiance measurements along with ancillary spacecraft, instrument, and geolocation data of the CrIS instrument on the Suomi National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (SNPP). In December 2014, the CrIS instrument on the SNPP satellite doubled the spectral resolution of shortwave infrared data being transmitted to the ground. In November 2015, additional points were included at the ends of the longwave and shortwave interferograms to improve the quality of the calibration. Prior to November 2, 2015 the data are only available in Normal Spectral Resolution (NSR), after November 2, 2015 at 16:06 UTC, the data are available in both NSR and Full Spectral Resolution. The FSR files have 2,223 channels: 637 shortwave channels from 3.9 to 4.7 microns (2555 to 2150 cm-1), 869 midwave channels from 5.7 to 8.05 microns (1752.5 to 1242.5 cm-1), and 717 longwave channels from 9.1 to 15.41 microns (1096.25 to 648.75 cm-1). Each CrIS field-of-regard (FOR) contains 9 field-of-views (FOVs) arranged in a 3X3 array. The Level 1B files contain 30 FORs in the cross track direction and 45 in the along track direction. Data products are constructed on six minute boundaries. CrIS is designed to be used with the ATMS (Advanced Technology Microwave Sounder) instrument. Processing the data from both of these instruments together is referred to as CrIMSS (Cross-Track Infrared and Microwave Sounder Suite). If you were redirected to this page from a DOI from an older version, please note this is the current version of the product. Please contact the GES DISC user support if you need information about previous data collections.

Resources

Name Format Description Link
33 NASA SNPP Cross Track Infrared Sounder (CrIS) Level 1B Delta Algorithm Theoretical Basis Document (ATBD) https://docserver.gesdisc.eosdis.nasa.gov/public/project/SNPP/CrIS_L1B_SNPP.DeltaATBD_V2.0.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2F9NPOTPIPLMAW
34 SNPPCrISL1B_2.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/SNPPCrISL1B_2.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/SNPPCrISL1B_2.html
21 Access the data via the OPeNDAP protocol. https://sounder.gesdisc.eosdis.nasa.gov/opendap/SNPP_Sounder_Level1/SNPPCrISL1B.2/
21 Access the data via HTTPS. https://sounder.gesdisc.eosdis.nasa.gov/data/SNPP_Sounder_Level1/SNPPCrISL1B.2/
33 NASA SNPP Cross Track Infrared Sounder (CrIS) Level 1B Product Users Guide https://docserver.gesdisc.eosdis.nasa.gov/public/project/SNPP/NASA_SNPP_CrIS_L1B_Product_Users_Guide_V2.0RevC.pdf
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=SNPPCrISL1B+002
33 Cross-track Infrared Sounder (CrIS) Level 1B Quality Flags Description Document https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/SNPP_Sounder/3.3_ScienceDataProductDocumentation/3.3.5_ProductQuality/NASA_SNPP_CrIS_L1B_Quality_Flags_V2.0.pdf
33 Joint Polar Satellite System (JPSS) Cross Track Infrared Sounder (CrIS) Sensor Records (SDR) Algorithm Theoretical Basis Document (ATBD). https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/SNPP_Sounder/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithms/D0001-M01-S01-002_JPSS_ATBD_CrIS-SDR_C.pdf

Tags

  • infrared-wavelengths
  • spectral-engineering
  • earth-science

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