Changes between Version 9 and Version 10 of ImplementAnalysislseik

Timestamp:

Sep 1, 2010, 5:11:15 PM (14 years ago)

Author:

lnerger

Comment:

--

ImplementAnalysislseik

@@ -162 +162 @@
 
 
-
 === `U_prodRinvA_local` (prodrinva_local.F90) ===
 
@@ -189 +188 @@
  * The observation vector `obs_l` is provided through the interface for cases where the observation error variance is relative to the actual value of the observations.
 
+=== `U_init_n_domains` (init_n_domains.F90) ===
+
+This routine is used by all local filter algorithms (LSEIK, LETKF).
+
+The interface for this routine is:
+{{{
+SUBROUTINE init_n_domains(step, n_domains_p)
+
+  INTEGER, INTENT(in)  :: step        ! Current time step
+  INTEGER, INTENT(out) :: n_domains_p ! number of analysis domains for local model sub-domain
+}}}
+
+The routine is called during the analysis step before the loop over the local analysis domains is entered. 
+It has to provide the number of local analysis domains. In case of a domain-decomposed model the number of local analysis domain for the model sub-dmain of the calling process has to be initialized.
+
+Hints: 
+ * As a simple case, if the localization is only performed horizontally, the local analysis domain can be single vertical columns of the model grid. In this case `n_domains_p` is simply the number of vertical columns in the local model sub-domain.
+