Modify BUFR converter and filter yamls for MetoOp Scatwind

[emilyhcliu]

Two updates for MetOp SCATWIND; one minor updates for GOES AMV

1. BUFR Converter:

   • remove wind direction and speed
   • add stationElevation as zero

2. UFO Filters:

   • add linear obs operator section
     The declaration of `linear obs operator" is necessary for GOES AMV since there is no
     linearized component for applying the 10-meter factor.
   • add Gaussian Thinning filter to thin data with 75 km box (equal box size, prefer data close to central of the box)

3. For GOES AMV YAML files, change output data extension from nc4 to nc

UFO vs. GSI O-F and QC comparison: O-F and data count passed look close

3Dvar increments are reasonable with MetOp-B SCATWIND alone.

0: ----------------------------------------------------------------------------------------------------
  0: Increment print | number of fields = 8 | cube sphere face size: C768
  0: eastward_wind                                | Min:-1.741092e+00 Max:+1.712287e+00 RMS:+2.282584e-03
  0: northward_wind                               | Min:-1.825957e+00 Max:+1.930385e+00 RMS:+2.496075e-03
  0: air_temperature                              | Min:+0.000000e+00 Max:+0.000000e+00 RMS:+0.000000e+00
  0: surface_pressure                             | Min:+0.000000e+00 Max:+0.000000e+00 RMS:+0.000000e+00
  0: specific_humidity                            | Min:+0.000000e+00 Max:+0.000000e+00 RMS:+0.000000e+00
  0: cloud_liquid_ice                             | Min:+0.000000e+00 Max:+0.000000e+00 RMS:+0.000000e+00
  0: cloud_liquid_water                           | Min:+0.000000e+00 Max:+0.000000e+00 RMS:+0.000000e+00
  0: ozone_mass_mixing_ratio                      | Min:+0.000000e+00 Max:+0.000000e+00 RMS:+0.000000e+00
  0: ----------------------------------------------------------------------------------------------------

3DVar increments are also reasonable with MetOp-B + MetOp-A assimilated

[RussTreadon-NOAA]

Copied modified files to working copy of gdas-validation. Ran gdasprepatmiodaobs. satwind and scatwind pieces run to completion.

Approve.