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Diagnostics by Horizontal Domains : DDH (2008)

Monday 27 October 2008

Diagnostics by Horizontal Domains : DDH (in French : Diagnostics par Domaines Horizontaux)

Guide for users and developpers : Variables and budget equations, in horizontal mean ARPEGE, ALADIN and AROME models

The joined paper presents the diagnostics on horizontal domains (DDH) developed initally for the variable mesh of ARPEGE(global stretched model), and now also available for ALADIN (Limited Area Model) and AROME (Cloud Systems Resolving Model). The main objective of the DDH tool is to provide, on user defined domains, the budget of prognostic variables of these models (momentum, temperature, water vapour, etc). The DDH tool is used by searchers and model developpers to understand the model’s dynamical and physical interactions, thus contributing to the parameterization development process. The DDH are also used for other purposes, like getting mean model drifts with respect to analyses, or to extract model vertical profiles at given locations.