S-NPP CrIS IMG: Collocated VIIRS level 1 / cloud mask statistical summary V2 (SNDRSNCrISL1BIMG) at GES DISC

Description

The Cross-track Infrared Sounder (CrIS) Level 1B Normal Spectral Resolution (NSR) data files contain radiance measurements along with ancillary spacecraft, instrument, and geolocation data of the CrIS instrument on the Suomi National Polar-orbiting Partnership 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, after November 2, 2015 at 16:06 UTC, the data are available in both NSR and Full Spectral Resolution (FSR). The NSR files have 1,317 channels: 163 shortwave channels from 3.9 to 4.7 microns (2555 to 2150 cm-1), 437 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. The Visible Infrared Imaging Radiometer Suite (VIIRS) has 22 imaging and radiometric bands covering wavelengths from 0.41 to 12.5 microns. It provides the sensor data records for clouds, sea surface temperature, ocean color, and others. This IMG product primarily contains statistics of the VIIRS cloud mask and VIIRS L1B data within each CrIS footprint..

Resources

Name Format Description Link
21 Access the data via HTTPS. https://sounder.gesdisc.eosdis.nasa.gov/data/SNPP_Sounder_Level1/SNDRSNCrISL1BIMG.2/
21 Access the data via the OPeNDAP protocol. https://sounder.gesdisc.eosdis.nasa.gov/opendap/SNPP_Sounder_Level1/SNDRSNCrISL1BIMG.2/
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
33 NASA SNPP Cross-track Infrared Sounder (CrIS) IMG/IMG_COL Product Users’ Guide https://docserver.gesdisc.eosdis.nasa.gov/public/project/SNPP/CrIS_VIIRS_IMG_Product_Users_Guide_v2B.pdf
33 NASA SNPP 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
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FNC505NHFIHCY
33 Joint Polar Satellite System (JPSS) Cross-track Infrared Sounder (CrIS) Sensor Data 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
34 SNDRSNCrISL1BIMG_2.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/SNDRSNCrISL1BIMG_2.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/SNDRSNCrISL1BIMG_2.html
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=SNDRSNCrISL1BIMG+002

Tags

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

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