Details of Award
NERC Reference : NE/I022094/1
A New Dynamical Core for the Unified Model: Conservation Properties, Model Grids and Time-Stepping
Grant Award
- Principal Investigator:
- Professor A Gadian, University of Leeds, School of Earth and Environment
- Co-Investigator:
- Professor S Mobbs, University of Leeds, National Centre for Atmospheric Science
- Grant held at:
- University of Leeds, School of Earth and Environment
- Science Area:
- Atmospheric
- Overall Classification:
- Atmospheric
- ENRIs:
- Global Change
- Environmental Risks and Hazards
- Science Topics:
- Stratospheric Processes
- Tropospheric Processes
- Large Scale Dynamics/Transport
- Regional & Extreme Weather
- Abstract:
- A test-bed for investigating three essential aspects of a new dynamical core for the Unified Model will be established, building on the current NCAS Microscale Model. The features to be investigated are the conservation properties of the equations and their discretisation, the computational grid and the method for advancing the model in time without exciting acoustic modes. The new approaches will be evaluated and compared with existing approaches, paying particular attention to accuracy and speed in massively parallel implementations. A new implementation of the Microscale Model will be based on a re-casting of the model equations in conservative form; this is likely to be of particular importance for climate modelling. Massively parallel implementations of the Microscale Model will be be created with both rectangular and hexagonal horizontal grid structures and the efficiency of these will be evaluated. In addition to the current split-explicit time-stepping version of the model, a second version will be established using a Helmholtz solver for determination of the pressure, allowing much larger time-steps but simultaneously creating challenges for efficient parallel implementation. The outcomes of these evaluations will feed into the design of the next generation Unified Model.
- NERC Reference:
- NE/I022094/1
- Grant Stage:
- Completed
- Scheme:
- Directed (Research Programmes)
- Grant Status:
- Closed
- Programme:
- NGWCP
This grant award has a total value of £202,395
FDAB - Financial Details (Award breakdown by headings)
| DI - Other Costs | Indirect - Indirect Costs | DA - Investigators | DA - Estate Costs | DI - Staff | DA - Other Directly Allocated | DI - T&S |
|---|---|---|---|---|---|---|
| £4,091 | £73,770 | £17,879 | £28,513 | £68,526 | £5,198 | £4,417 |
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