NOAA-20/S-NPP SDR V3.2 Software for VIIRS, CrIS and ATMS

[kathys]

The University of Wisconsin Space Science and Engineering Center (SSEC) is pleased to announce the release of the Community Satellite Processing Package (CSPP) Sensor Data Record (SDR) Software Version 3.2 in support of NOAA-20 and Suomi-NPP VIIRS, CrIS and ATMS instruments. SSEC has packaged the ADL versions of the Suomi-NPP and NOAA-20 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.

This release includes CrIS calibration changes that went into effect at NOAA IDPS on 16 January 2020. The changes bring CrIS into better agreement with IASI, reduce inter-Field-Of-View (FOV) variability, and improve the agreement between S-NPP and NOAA-20 instruments (changes will be larger for S-NPP CrIS). No significant calibration changes affect ATMS or VIIRS instruments.

What is new in CSPP SDR Version 3.2:

• • Updated ADL code base - Block 2.1 Mx8 (ADL 5.3_I2.1.08.00),
  • Streamlined ancillary and Look-Up-Table (LUT) installation and update process,
  • IVCDB intermediate files now created as part of standard SDR output,
  • sdr_luts.sh and sdr_ancillary.sh scripts now execute in a temporary work directory,
  • New separate ancillary and LUT external distribution sites and environmental variables:
  • • JPSS_REMOTE_ANC_DIR=https://jpssdb.ssec.wisc.edu/cspp_v_4_0/ancillary/
    • JPSS_REMOTE_LUT_DIR=https://jpssdb.ssec.wisc.edu/cspp_luts_v_4_0/

The CSPP SDR version 3.2 software continues to support a number of unique features:

• • Optional multi-core processing to reduce wait times while the SDR data are created (supported for VIIRS, CrIS, and ATMS),
  • Optional aggregation and compression of SDR output files,
  • Automated download of required ancillary data at runtime, plus offline scripted downloads,
  • Offline scripted downloads of calibration lookup tables (LUTS).

System requirements for CSPP SDR Version 3.2:

• • Intel or AMD CPU with 64-bit instruction support,
  • 16 GB RAM, plus an additional 8GB of RAM for every core that is used for CSPP VIIRS SDR processing,
  • CentOS 6.9 64-bit Linux (or other compatible 64-bit Linux distribution),
  • 100 GB disk space (including the software and data),
  • Internet connection (for downloading ancillary data).

Other things to Note:

• • We are working on a document describing how to deploy CSPP SDR Version 3.2 in a container. An announcement will be sent when it is ready,
  • This is the last CSPP SDR CentOS 6 based release. CentOS 7 will be the target Operating System for future CSPP releases,
  • With this new release, CSPP SDR Version 3.0.x LUTs will no longer be updated,

Software, test data and installation instructions are all available at the CSPP download site. Please use the 'Contact Us' form from our website to submit any questions or comments to CSPP.