The ensemble mean is the mean value derived from all the 50 ensemble members plus the control member. This value attempts to capture the general picture while smoothing out spurious detail...

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These charts show the mean and variation in the latest ECMWF ensemble forecast (ENS). ...

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Scores of forecasts of surface parameters by experimental machine learning models

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Maximum Wind gusts at 10 m above the earth's surface during the 6 hour period previous to the selected validity time are shown using colour shading. 10 m wind gusts are a post-processed product...

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

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This chart provides information on the verification of forecasts of the number of tropical ...

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These diagrams compare scores of ensemble control (red) and ensemble members (central 50% of ...

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The time-longitude diagram (Hovmoller diagram) shows a section of ensemble mean anomalies or ...

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The charts show the forecast value of the vertically integrated total column water (vapour + cloud water + cloud ice but with no precipitation included) in units of kg m⁻²...

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Forecast precipitation is considered to be snow if the model atmosphere above and at the ground surface is forecast to be below 0°C. Where the ground surface lies near the 0°C level...

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open_in_newview in Open Charts

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

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open_in_newview in Open Charts

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

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open_in_newview in Open Charts

The charts show mean frequency and accumulated cyclone energy of tropical storm activity. ...

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This chart provides information on the verification of forecasts of the expected number of ...

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open_in_newview in Open Charts

The charts show the evolution of existing and potential tropical cyclone activity. ...

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open_in_newview in Open Charts

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

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open_in_newview in Open Charts

This diagram shows the variation of Relative Operating Characteristics (ROC) scores with various ...

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This diagram gives a measure of the effectiveness of the model. The drop-down menu can ...

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These diagrams show verification scores for significant wave height and 10 m wind for three ...

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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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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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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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open_in_newview in Open Charts

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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open_in_newview in Open Charts