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RISEffect of Reduced Diffusion on Surface Wind and Wave Fields
Publisher: American Meteorological Society
Abstract: Horizontal diffusion is used in meteorological models to reduce noise in the shorter spatial scales and to increase numerical stability. In turn, this affects the surface wind distribution. A series of tests on real ...
Implementation of the Semi-Lagrangian Method in a High-Resolution Version of the ECMWF Forecast Model
Publisher: American Meteorological Society
Abstract: In this article the implementation of the semi-Lagrangian method in a high-resolution version of the ECMWF forecast model is examined. Novel aspects include the application of the semi-Lagrangian scheme to a global model ...
ECMWF Analyses and Forecasts of Stratospheric Winter Polar Vortex Breakup: September 2002 in the Southern Hemisphere and Related Events
Publisher: American Meteorological Society
Abstract: Breakup of the polar stratospheric vortex in the Northern Hemisphere is an event that is known to be predictable for up to a week or so ahead. This is illustrated using data from the 45-yr ECMWF Re-Analysis (ERA-40) for ...
The HARMONIE–AROME Model Configuration in the ALADIN–HIRLAM NWP System
Publisher: American Meteorological Society
Abstract: he aim of this article is to describe the reference configuration of the convection-permitting numerical weather prediction (NWP) model HARMONIE-AROME, which is used for operational short-range weather forecasts in Denmark, ...