Model development in practice: a comprehensive update to the boundary layer schemes in HARMONIE-AROME cycle 40
نویسندگان
چکیده
Abstract. The parameterised description of subgrid-scale processes in the clear and cloudy boundary layer has a strong impact on performance skill any numerical weather prediction (NWP) or climate model is still prime source uncertainty. Yet, improvement this hard because operational models are highly optimised contain numerous compensating errors. Therefore, single aspect often results an overall deterioration as whole. In paper, we will describe comprehensive integral revision three parameterisation schemes High Resolution Local Area Modelling – Aire Limitée Adaptation dynamique Développement InterNational (HIRLAM-ALADIN) Research Mesoscale Operational NWP Europe Applications to Operations at (HARMONIE-AROME) that together parameterise processes: cloud scheme, turbulence shallow cumulus convection scheme. One major motivations for poor representation low clouds current cycle. newly revised parametric descriptions provide improved not only but also precipitation. Both improvements can be related stronger accumulation moisture under atmospheric inversion. included recent update HARMONIE-AROME configuration, its insights underlying physical more general interest based commonly applied frameworks. Moreover, work offers interesting look behind scenes how development requires approach delicate balance between realism pragmatism.
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ژورنال
عنوان ژورنال: Geoscientific Model Development
سال: 2022
ISSN: ['1991-9603', '1991-959X']
DOI: https://doi.org/10.5194/gmd-15-1513-2022