Observation Errors in UFO

UFO provides many ways of specifying observation uncertainites (also known as observation errors). Below is an outline of options:

• Using filters to specify observation uncertainties
  • GNSS-RO observation uncertainties
• Observation error covariances in UFO
  • Observation error covariance with cross-variable (cross-channel) correlations
  • Diagonal observation error covariance
  • Correlated Observation Error Covariance with Diffusion
  • Observation error covariance with correlations for observations within one record
  • Specifying observation error standard deviations