MODES has been applied for a scale-dependent estimates of the growth of forecast uncertainties in a global prediction system. A new parametric model for the representation of the forecast error growth is formulated and applied independently to every zonal wavenumber.
Since 28 October 2016 new maps showing inertio-gravity waves in the upper troposphere and the stratosphere in ECMWF analysis and 10-day deterministic forecast have been added under Polar plots menu.
Summary of the MODES workshop entitled "Normal Modes of Atmospheric Variability in Observations, Numerical Weather Prediction, and Climate Models" will appear in the June issue of the Bulletin of American Meteorological Society. Available on request.
Properties of forecast errors of tropical circulation are more difficult to establish than in the extra-tropics, where the geopotential height often provides sufficient information about the large-scale circulation.
Since mid January 2016 the MODES outputs have been enriched by the presentation of the balanced and inertio-gravity circulation in the polar regions with focus on the stratosphere.
Plots were prepared in support to the DLR observation campaign of gravity waves in polar regions.
