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RISSome Experimental Lessons on Digital Filtering in the ALADIN-France 3DVAR Based on Near-Ground Examination
Publisher: American Meteorological Society
Abstract: This paper deals with the characteristics and effects of digital filter initialization, as implemented in the operational three-dimensional variational data assimilation (3DVAR) system of the Aire Limitée Adaptation Dynamique ...
Sensitivity of High-Resolution Forecasts Using the Adjoint Technique at the 10-km Scale
Publisher: American Meteorological Society
Abstract: This paper provides an experimental framework designed to assess the performance and the evolution of the diabatic Aire Limitée Adaptation Dynamique Développement International (ALADIN) adjoint model at 10-km grid size. ...
Location and Interaction of Upper- and Lower-Troposphere Adiabatic Frontogenesis
Publisher: American Meteorological Society
Abstract: Both upper-air and surface frontogenesis have often been depicted as processes whose dynamics could he reduced to 2D balanced problems in which ?self-sharpening? configurations could be highlighted. This paper reports on ...
Mesoscale Background Error Covariances: Recent Results Obtained with the Limited-Area Model ALADIN over Morocco
Publisher: American Meteorological Society
Abstract: This note presents recent results on the properties of background error covariances computed using the National Meteorological Center (now known as the National Centers for Environmental Prediction) method and applied to ...