Version 7 (modified by willie, 2 years ago) (diff)

Central Ancillary Program

The Central Ancillary Program (CAP) creates UM ancillary files from an internal set of master data sources. The scientific and technical guides can be found on the ​Met Office Science Repository.


The Central Ancillary Program (CAP) is installed on ARCHER. You can find the executables and scripts under $UMDIR on ARCHER.

The CAP is controlled by two scripts CAP_interface and run_ancil.pbs. Copy these to a directory on ARCHER. You only need to edit the run_ancil.pbs script to define the domain and parameters for various ancillary files.

This allows you to create the ancillaries one by one in the order defined by run_ancil.pbs. To create the land/sea mask, just remove the comments from that section in run_ancil.pbs. When ready, just

qsub run_ancil.pbs

When the land/sea mask is created, check it carefully and then put the comments back and remove the comments from the orography section and repeat.


On Monsoon, there is also a version of the CAP installed. It is not meant to be used directly, but is to be driven by the Nesting Suite - see Rose suite u-aa753.

Installing CAP9.0 on ARCHER (old)

Xancil, a program to create UM ancillaries from user supplied netCDF data

W. McGinty

8 Feb 2018

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