Abstract
Abstract The potential of the inclusion of two prognostic variables for cloud condensate and precipitation content in adjoint calculations has been investigated in the framework of Meteo-France's operational spectral global model, ARPEGE. The tangent linear and adjoint versions of the recently developed explicit large-scale cloud and precipitation scheme have been coded and tested. In particular, the validity of the linear hypothesis has been checked when finite-size perturbations are applied to the initial model state vector. Then, the new explicit cloud and precipitation scheme and its adjoint version have been integrated in a set of sensitivity experiments. These allowed the assessment of the relative impacts of initial perturbations imposed on each model variable on the variations of various meteorological aspects of the forecast that relate either to the dynamics or to the cloud and precipitating activity of some extratropical cloud systems.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
