Dear Colleagues,
This message is to announce the release of the JPSS Community Satellite Processing Package (CSPP) Suomi-NPP VIIRS Imagery Environmental Data Records (EDR) Version 2.0 Software package for Direct Broadcast. The Imagery EDR products are a subset of VIIRS individual bands remapped into a Mercator projection relative to the satellite (Ground Track Mercator (GTM) projection). This reprojection removes the bow-tie effect and also maintains constant horizontal resolution in the cross-track and along-track directions. One of the output products is the Near Constant Contrast (NCC) product, which is created from the VIIRS Day/Night Band and attempts to provide a consistent image across all illumination regimes.
VIIRS Science Data Record (SDR) Binary Large OBject (BLOB) and matching .asc files are required input to the CSPP Imagery EDR software. These are intermediate files created as part of the CSPP SDR processing. By default, these files are deleted upon successful CSPP SDR completion; users must execute the CSPP SDR software using the “-e” option (viirs_sdr.sh -e) in order for the intermediate files to be retained.
What's New in CSPP Imagery EDR Software Version 2.0:
· - The CSPP VIIRS Imagery EDR code base has been updated to IDPS version Mx8.4 (ADL 4.2.4).
· The CSPP VIIRS Imagery EDR algorithm in this release is designed to work with VIIRS SDRs created by CSPP SDR software Version 2.0.
Output Imagery EDR products are:
- VIIRS I-Bands 1,2,3,4,5 radiances and reflectances or brightness temperatures,
- VIIRS M-Bands 1,4,9,14,15,16 radiances and reflectances or brightness temperatures,
- VIIRS Near Constant Contrast (NCC) albedo created from the VIIRS Day/Night Band,
- and matching Geolocation files.
The CSPP SDR, VIIRS EDR, and VIIRS Imagery EDR packages share the following unique features:
- All are based on the Algorithm Development Library (ADL) code base released by the JPSS Project
- Executable codes have been compiled and tested for efficient runtime performance
- Multicore processing capability is available via user-selectable command line options
- Calibration lookup table (LUT) updates are automated via user-callable scripts
- Ancillary data discovery, download, and pre-processing is automated via user-callable scripts
- HDF5 product files may be aggregated and internally compressed via user-selectable command line options
- Timely and helpful software support is available from the CSPP team at cspp_issues@ssec.wisc.edu
System requirements are:
- Intel or AMD CPU with 64-bit instruction support,
- 16 GB RAM (minimum),
- CentOS 6 64-bit Linux (or other compatible 64-bit Linux distribution.
The software, documentation and verification data are all available for download from the CSPP website:
http://cimss.ssec.wisc.edu/cspp/
Best regards,
The JPSS CSPP Team