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NRT Analyses and forecasts: temperatures and potential vorticity

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High-res ANalysis and ForeCast of the stratospheric polar vortex

The stratospheric polar vortex is visualized with polar maps of the Potential Vorticity (PV) on an isentropic surface. This surface is defined by a potential temperature of 485K, i.e. in the lower stratosphere where polar ozone depletion happens. The maps below are derived from the meteorological analyses and Medium Range High-Resolution Forecasts delivered operationally by ECMWF.

zonally averaged time-series for High-res ANalysis and ForeCast

ensemble prediction system: perturbed forecasts







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