ObsErrorFactorLatRad

This obsfunction gives the maximum error bound reduction at equator and decreasing towards higher latitudes. Users need to specify four parameters using the “latitude_parameters” (see the example below).

Params[0]

the latitude bound for which this error function applies.

Params[1-3]

determine the error function within the latitude bound given by params[0].

The error function gives the maximum error bound reduction at equator and decreasing towards params[0].

The function:

Error Function = \(params[1] * ( \left| latitude \right| * params[2] + params[3] )\)

Example:

- filter: Background Check
  filter variables:
  - name: brightnessTemperature
    channels: *all_channels
  function absolute threshold:
  - name: ObsFunction/ObsErrorBoundIR
    channels: *all_channels
    options:
      channels: *all_channels
      obserr_bound_latitude:
        name: ObsFunction/ObsErrorFactorLatRad
        options:
          latitude_parameters: [25.0, 0.5, 0.04, 1.0]