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WP B.1: Improving convective parameterisation

DIAMET 2011 09 June 2011 Reading, UK. WP B.1: Improving convective parameterisation. Oscar Martínez-Alvarado WP leader : Bob Plant Department of Meteorology University of Reading. WP B.1: Objective and methods.

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WP B.1: Improving convective parameterisation

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  1. DIAMET 2011 09 June 2011 Reading, UK WP B.1:Improving convective parameterisation Oscar Martínez-Alvarado WP leader: Bob Plant Department of Meteorology University of Reading

  2. WP B.1: Objective and methods • To assess the adequacy of current convection parameterisation schemes to represent convective processes in mesoscale processes in the extratropics. • The intended tools are • Tracer diagnostics such as those for PV. New variables include theta and moist-related variables (q, qcl, qcf). • Includes code update from MetUM 6.1 (modsets) to 7.x (FCM). • Decomposition of bulk mass flux schemes into spectral components (Lawrence and Rasch 2005).

  3. Example: Heating/cooling • Pilot campaign case: 24 November 2009. • Jeffrey has already analysed this case using PV. • This set of tools is nearly complete and ready to be used by other users. • Care must be taken regarding growth of balance errors. Cumulative heating /cooling (including advection effects) since 00 UTC 22 November 2009. Simulation using LAM MetUM at 12 km grid spacing.

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