The movie shows a visualization of the high resolution regional weather model (COSMO-1) - currently being developed by MeteoSwiss - with simulated cloud coverage against a digital elevation model background.
The visualization begins 19 June 2013 and runs for several days (as indicated). The first day of the simulation was an extremely warm day over Switzerland with hardly any thunderstorms and a strong southerly flow (Foehn). On the second day, the southerly flow persists and a perturbation passes over Switzerland with associated precipitation. On the third day, the flow gains a westerly component with a low pressure system over the Northern Sea. As a high pressure ridge passes over Switzerland, clouds clear away temporarily over midday.
Spatial resolution is 1.1km while temporal resolution is 2 minutes.
The model is developed by the the Consortium for Small-scale Modeling (COSMO) formed by several national meteorological services (cosmo-model.org).
Foreground (model data): Cloud coverage (3 cloud layers in different saturations of white) as well as precipitation rate (blue layer).
Background: Blue Marble topography derived from the Shuttle Radar Topography Mission 30-arcsecond data (SRTM30) and the Radarsat Antarctic Mapping Project Digital Elevation Model Version 2 (RAMP2).
ETH Zurich, Institute for Atmospheric and Climate Science
Federal Office of Meteorology and Climatology (MeteoSwiss)
Dr. Oliver Stebler
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