The University of Wisconsin-Madison SSEC is pleased to announce the release of Version 1.2 of the Community Satellite Processing Package (CSPP) NOAA/STAR Advanced Clear-Sky Processor for Oceans (ACSPO) software for retrieving sea surface temperature from direct broadcast (DB) AVHRR, MODIS and VIIRS sensor data records (SDRs).
ACSPO development is led by Alexander Ignatov of the NOAA/NESDIS Center for Satellite Applications and Research (STAR), in conjunction with John Sapper of the NOAA/NESDIS Office of Satellite and Product Operations (OSPO). This CSPP release was created in close collaboration with John Stroup at STAR.
This CSPP release (CSPP_ACSPO v1.2) adds ACSPO version 2.61 for VIIRS, alongside the existing ACSPO version 2.40 for AVHRR and MODIS, adapted and tested for operation in a real-time direct broadcast environment. The software contains binary executable files and supporting static data files as well as input and output files for verification of a successful installation. To support v2.61 for VIIRS we now require CentOS-7.
What is new in CSPP_ACSPO v1.2?
- NOAA-20 VIIRS instrument is now supported.
VIIRS Algorithm updated to ACSPO Version 2.61; MODIS and AVHRR algorithms remain unchanged at Version 2.40.
Version 2.61 GHRSST NetCDF files include the following structural changes:- The “quality_level” array fields have changed including the Fill Value.
A new array “brightness_temperature_08um6” is now included.
VIIRS Algorithm now requires both GMODO and GMTCO (Terrain Corrected) Geolocation files as input.
Multi-processor support added (-p option). - The “quality_level” array fields have changed including the Fill Value.
- NOAA-20 and Suomi-NPP VIIRS SDR (from CSPP or CLASS),
NOAA-15,16,17,18,19 and Metop-A,B AVHRR (from AAPP v7 or CLASS),
MODIS Aqua and Terra L1B (from NOAA SeaDAS or NASA LANCE/LAADS).
- Intel or AMD CPU with 64-bit instruction support,
8 GB RAM,
CentOS-7 64-bit Linux (or other compatible 64-bit Linux distribution),
1.5 GB of disk space (plus space for your own DB data and CSPP ACSPO products).
The SST bias files accumulated to date using previous versions of CSPP_ACSPO can be used with CSPP_ACSPO v1.2. Starting CSPP_ACSPO v1.2 from a different moment in time, or starting without any bias files, is also acceptable. The integration time for their accumulation is 12 hours of satellite data, but in reality they stabilize much faster, after approximately 2 hours.
Complete installation, execution and product information is included with the release.
CSPP development is led at the Space Science and Engineering Center at the University of Wisconsin-Madison by James Davies with funding support from the NOAA/NASA Joint Polar Satellite System (JPSS).