UFO Acceptance Completion

Description
Full validation of UFO model simulated observations (H(x)), quality control filters, and final observation error assignment in reference to the operational GSI system for all observation types used in GFSv16.3. This also will include variational bias correction for radiances and aircraft temperature as well as all other observation-space relevant capabilities (interpolation, etc.).

Deliverables
YAML files for each observation type containing forward operator, QC, and error assignment stored in the GDASApp repository
Flowcharts outlining QC and error assignment procedures for each observation type
GitHub issues documenting validation efforts for each observation type (figures, statistics, etc.)
Slide deck and/or spreadsheet summarizing results and any known differences to be shared with JCSDA and NCEP leadership
NCEP Technical Note summarizing the UFO validation efforts for GDAS (will likely not be published in Q4FY23)

Start by inventorying the observation types used in GFSv16.3 and the corresponding YAML files in the GDASApp repository. Compare UFO simulated observations, quality-control filters, and error assignments with the operational GSI system, then document each validation effort with figures and statistics. Done includes the requested flowcharts, summary slide deck or spreadsheet, and technical note.