JEDI-SKYLAB 7.0
JCSDA SkyLab 7.0 is the seventh roll-up release that provides integrated Earth System Data Assimilation capability. All JEDI code is open source 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 upgrades for this release include:
skylab-weather-land-7_0 experiment:
- Full cycling capability for the deterministic and ensemble DA with UFS atmospheric-land global model:
- Deterministic dual resolution 4DEnVar with hybrid background error covariance matrix.
- High-resolution departure computation at c768 resolution
- Medium-resolution minimization at c384 resolution
- Ensemble of Data Assimilations: 80 members with 3DVar at c384 resolution.
- Deterministic dual resolution 4DEnVar with hybrid background error covariance matrix.
- CRTM v3.1.0 implemented
- Separation of GNSS-RO quality checks to make independent of selected operator
skylab-weather-variable-grid-7_0 experiment:
- Full cycling capability for the deterministic and ensemble DA with MPAS global atmospheric model:
- Deterministic dual resolution 4DEnVar with hybrid background error covariance matrix.
- High-resolution departure computation at 15km-3km variable resolution centered on CONUS.
- Medium-resolution minimization at 30km
- Deterministic dual resolution 4DEnVar with hybrid background error covariance matrix.
- Ensemble of Data Assimilations: 30 members with 3DVar at 30km resolution.
skylab-marine-7_0 experiment:
- new SABER central block (EXPLICIT_DIFFUSION) used as an alternative to BUMP for small scale background error correlations
skylab-aerosol-weather-7_0 experiment:
- 4DEnVar with GEOS at C90 resolution with 32 ensemble members
- Weather obs: radiosondes, windborne, satwinds_ssec_amv, AMSU_A (NOAA 15,18,19 and MetOP B,C), MHS (NOAA 19 and MetOP B, C)
- Aerosol obs: VIIRS (NPP and NOAA 20), MODIS (Aqua and Terra)
skylab-trace-gas-7_0 experiment:
- Minor updates to plots
Software infrastructure
- Environment to build: all libraries on SPACK-STACK 1.5.1
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 Mississippi State University Hercules (gnu & intel)
- NOAA University of Wisconsin S4 (intel)
- Limited support for NCAR-Wyoming Derecho (gnu & intel)
- Limited support for NOAA ParallelWorks AWS, Azure, Gcloud (intel)