JEDI-SKYLAB 6.0
JCSDA SkyLab 6.0 is the sixth roll-up release that provides integrated Earth System Data Assimilation capability. All JEDI code is open source, distributed under the Apache 2 licensing agreement and publicly available at https://github.com/JCSDA. Capabilities are demonstrated via the SkyLab testbed experiments conducted internally at JCSDA for the following components: atmosphere, land/snow, ocean, sea-ice, aerosols, and atmospheric composition. SkyLab testbed output plots are openly available through the SkyLab Data Viewer at https://skylab.jcsda.org/.
The main SkyLab upgrades for release 6.0 include:
Atmosphere-land experiment:
- CRTM v3.0 bug fixes and minor updates compared to the skylab-v5 release.
- Updated the coefficients for IR Water emissivity (consistent with v2.4.1)
- Bugfixes resolving NaNs and underflows
- Addition of GMI, AMSR/2, SnowDepth (GHCN), and active all-sky assimilation for GOES water vapor channels.
Marine experiment:
- Quality control filters for in-situ temperature and salinity observations are added (checking: regional value range, profile spikes and gradients, and profile density inversions), these filters should be suitable for ingesting realtime in-situ observations that did not have existing quality control flags.
Trace gas experiment:
- 3D-FGAT assimilation for CO and NO2 with FV3 stretch cubed sphere grid, providing down to 7 km resolution over CONUS. Observations include the new TEMPO proxy NO2 tropospheric columns
Software infrastructure:
Environment to build: all libraries on SPACK-STACK 1.5.0
Tested for the following system requirements:
- Amazon Web Services (AWS) Single Node AMI (RedHat 8; gnu)
- Amazon Web Services (AWS) Parallel Cluster (Ubuntu 20.04; intel)
- NASA Discover (gnu & intel)
- NOAA Mississippi State University Orion (gnu & intel)
- NOAA University of Wisconsin S4 (intel)
- NCAR Cheyenne (gnu)
- Limited support for NOAA ParallelWorks AWS, Azure, Gcloud (intel)