Community Satellite Processing Package

  Suomi National Polar-orbiting Partnership (NPP) Sensor Data Record (SDR) Software Version 2.0 Release

4 August 2014

     New SDR packages supporting the calibration and geolocation of the Visible Infrared Imaging Radiometer Suite (VIIRS), Advanced Technology Microwave Sounder (ATMS), and the Cross-track Infrared Sounder (CrIS) instruments. This version is being co-released with the CSPP VIIRS EDR Version 2.0 software package and the CSPP VIIRS Imagery EDR Version 2.0 software package.

What is new in CSPP SDR Version 2.0:

  • SDR software has been updated to NOAA Operational IDPS version Mx8.4 (ADL 4.2.4),
  • New dynamic ancillary and Look-Up-Table distribution websites are used,
  • VIIRS Day/Night Band geolocation files (GDNBO*.h5) now include Terrain Corrected datasets (i.e., Height_TC, Latitude_TC, Longitude_TC),
  • Added trim option to instrument SDR scripts that allows users to remove N number of leading or trailing granules of a pass,
  • A set of release notes with more detailed information on general and specific instrument updates and changes is provided in the SDR_2_0/RELEASE_NOTES.txt document.

This release replaces existing installations of CSPP SDR (it is not an update).

The CSPP SDR software package is based on the Algorithm Development Library (ADL) software developed by Raytheon for the JPSS Project. ADL allows the operational processing algorithms for Suomi NPP to run without modification in a Linux environment. SSEC has packaged the ADL versions of the Suomi NPP algorithms so they can run from the Linux command line in real-time direct broadcast mode, but we have not changed the underlying processing software, algorithms, or data formats. The output files from the CSPP SDR processing software are identical in naming, format, and structure to the corresponding files from NOAA/NESDIS. The native format for NPP SDR products is HDF5, and descriptions of the NPP file formats are available here (see the Common Data Format Control Books).