Changes between Version 9 and Version 10 of PDAFomi_additional_functionality

Timestamp:

Nov 26, 2024, 9:05:34 AM (18 hours ago)

Author:

lnerger

Comment:

--

PDAFomi_additional_functionality

@@ -62 +62 @@
 === Activating observation omission === 
 
-To use this omission functionality one has to augment [wiki:OMI_observation_modules#init_dim_obs_OBSTYPE init_dim_obs_OBSTYPE] in the observation modules as follows: [[BR]]
-Set the variable
-{{{
-   REAL :: thisobs%inno_omit=0.0    ! Omit observation if innovation larger this factor times
-                                    !     observation standard deviation (only active for >0)
-}}}
-to a value > 0.0. This activates the omission and specifies the omission limit. If inno_omit=2.0, an observation would be omitted if the absolute value of the difference between the observed ensemble mean state and the observation value is larger than 2 times the observation error standard deviation.
+Whether observations are omitted is controlled by the variable
+{{{
+   REAL :: thisobs%inno_omit    ! Omit observation if absolute innovation is larger this factor times (default=0.0)
+                                !     observation standard deviation (only active for >0)
+}}}
+For the default value `thisobs%inno_omit=0.0` no observation are omitted. 
+To use this omission functionality set in [wiki:OMI_observation_modules#init_dim_obs_OBSTYPE init_dim_obs_OBSTYPE] in the observation modules `thisobs%inno_omit` to a value > 0.0. This activates the omission and specifies the omission limit. If thisobs%inno_omit=2.0, an observation would be omitted if the absolute value of the difference between the observed ensemble mean state and the observation value is larger than 2 times the observation error standard deviation.
 
 To omit an observation, its inverse observation error variance is set by default to the very small value
@@ -83 +83 @@
 PDAFomi     --- Exclude obs. type ID   1  if innovation^2 >     3.00 times obs. error variance
 }}}
+(Note that is line is a bit misleading. It's actually 'if innovation > 3.00 times obs. error standard deviation')
 
 === Statistics about omitted observations ===