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Introduction to UKESM1

UKESM1 is the first release of the UK Earth System Model. Built as a joint venture by the Met Office Hadley Centre and the Natural Environment Research Council (NERC), UKESM1 consists of the HadGEM3 coupled physical climate model plus additional components that model key biogeochemical, chemistry, aerosol and vegetation processes.

More information about the contents and development of UKESM1 is available at; in particular, the release and support of UKESM1 is described here and here.

Accessing and running UKESM1

Background and prerequisites

The model makes use of several scientific components, including the Unified Model (UM) weather and climate modeling application. See here for more on the UM.

UKESM1 is distributed and run as a Rose suite; Rose is a framework for developing and running meteorological applications. Some details about Rose are available here.

The UKESM1 suite incorporates switches to choose the machine on which it is run. Available resources include Archer, the UKRI platform, and Monsoon, the Met Office / NERC collaborative platform. Both are accessible from the PUMA service. See here for more on Archer, and here for more about Monsoon (including how to get registered on these machines).

The UKESM1 suites are available from the Met Office Science Repository Service (MOSRS). You must be registered to access this service; please contact us to get an account.

UKESM1 release note

Detailed release notes for the first release of UKESM, which describe how to access the suite, options for running the model (including selecting the target machine) and further configuration of the suite are available here. Note that this document contains links to the MOSRS, which is only accessible to registered users (see above).