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Potential vorticity (PV) helps description and understanding of dynamic processes in the atmosphere by giving an indication of ascending or descending air flows and the development or weakening of ...

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The reliability diagram shows the reliability of the ECMWF seasonal forecast system (SEAS5) with ...

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This chart shows the Relative Operating Characteristics (ROC) diagram for the three-month ...

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CAMS methane forecasts

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The ECMWF seasonal forecasts (SEAS5) are produced every month with a 51-member ensemble at ...

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MUCAPE (Most Unstable Convective Available Potential Energy) is an indicator of atmospheric instability (the susceptibility of the troposphere to support free convection) and...

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These charts aim to point towards areas where anomalous weather is likely to occur. ...

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This chart shows 7-day mean anomalies for a range of parameters from the ECMWF Sub-seasonal ...

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This chart provides a range of skill scores relating to forecasts of the evolution of the sea ...

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This chart provides a range of skill scores relating to forecasts of the evolution of the sea ...

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CAMS nitrogen dioxide forecasts

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**Note:** In **June 2023** ECMWF implemented a **major upgrade ...**

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GraphCast (Google DeepMind): a deep learning-based system developed by Google DeepMind.It is initialised with ECMWF analysis. GraphCast operates at 0.25° resolution.

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GraphCast (Google DeepMind): a deep learning-based system developed by Google DeepMind.It is initialised with ECMWF analysis. GraphCast operates at 0.25° resolution.

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GraphCast (Google DeepMind): a deep learning-based system developed by Google DeepMind.It is initialised with ECMWF analysis. GraphCast operates at 0.25° resolution.

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GraphCast (Google DeepMind): a deep learning-based system developed by Google DeepMind.It is initialised with ECMWF analysis. GraphCast operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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This chart shows probability information regarding point precipitation, as derived from the ...

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850 hPa wet-bulb potential temperature is commonly used to identify air masses and a strong gradient of wet bulb potential temperature is indicative of fronts between two different air masses...

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The simulated water vapour images generally focus on the upper troposphere. These charts can often indicate dynamical forcing mechanisms (responsible for cyclogenesis) or convective development (related to potential instability)...

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