Datasets

Coupled ensemble reforecasts using the ECMWF IFS cycle 47r3, configured as follows. The atmosphere is set up with 15 ensemble members, 137 model levels and run on Tco319 cubic octahedral reduced Gaussian grids. The IFS is coupled hourly to a 75-level NEMO v3.4 ocean model and an LIM2 sea ice model, both utilising the ORCA025 tripolar grid with a grid spacing of approximately 0.25 degrees. The ocean and atmosphere are fully coupled throughout the 46-day forecast, producing output every 12 hours. Fifteen reforecasts are used.

Stratospheric sudden warming 2018 simulation at TCo319L137 resolution for start date 2018020800. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2018 simulation at TCo319L198 resolution for start date 2018020800. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2018 simulation at TCo319L91 resolution for start date 2018020800. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Coupled ensemble reforecasts using the ECMWF IFS cycle 47r3, configured as follows. The atmosphere is set up with 15 ensemble members, 137 model levels and run on Tco639 cubic octahedral reduced Gaussian grids. The IFS is coupled hourly to a 75-level NEMO v3.4 ocean model and an LIM2 sea ice model, both utilising the ORCA025 tripolar grid with a grid spacing of approximately 0.25 degrees. The ocean and atmosphere are fully coupled throughout the 46-day forecast, producing output every 12 hours. Fifteen reforecasts are used.

Coupled ensemble reforecasts using the ECMWF IFS cycle 47r3, configured as follows. The atmosphere is set up with 15 ensemble members, 137 model levels and run on Tco639 cubic octahedral reduced Gaussian grids. The IFS is coupled hourly to a 75-level NEMO v3.4 ocean model and an LIM2 sea ice model, both utilising the ORCA025 tripolar grid with a grid spacing of approximately 0.25 degrees. The ocean and atmosphere are fully coupled throughout the 46-day forecast, producing output every 12 hours. Fifteen reforecasts are used.

Stratospheric sudden warming 2006 simulation at TCo639L137 resolution for start date 2006011700. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2010 simulation at TCo639L137 resolution for start date 2010020500. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2018 simulation at TCo639L137 resolution for start date 2018020800. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2006 simulation at TCo639L198 resolution for start date 2006011700. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2010 simulation at TCo639L198 resolution for start date 2010020500. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2018 simulation at TCo639L198 resolution for start date 2018020800. This is free-running (i.e, not nudged) experiment described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2006 simulation at TCo639L91 resolution for start date 2006011700. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2010 simulation at TCo639L91 resolution for start date 2010020500. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2018 simulation at TCo639L91 resolution for start date 2018020800. This is free-running experiment (i.e., not nudged) described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

Stratospheric sudden warming 2018 simulation at TCo639L91 resolution for start date 2018020800. This nudged experiment described in the paper: "Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings" (https://wcd.copernicus.org/articles/4/81/2023/)

Examples

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

In the northern hemisphere the air rotates anti-clockwise around low contour centres and clockwise around the high contour centres. In the southern hemisphere the air rotates clockwise around low contour centres and ...

This dataset contains atmospheric mixing ratios of carbon dioxide (CO2), methane (CH4) and carbon monoxide (CO), CO2 and CH4 fluxes at the surface, CO2 tagged tracers to monitor the atmospheric enhancement associated with anthropogenic emissions and natural fluxes, and meteorological parameters from very high resolution (9km) global simulations with the Integrated Forecasting System of the European Weather Centre for Medium Range Weather Forecasts (ECMWF).

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

This is a time/longitude diagram (Hovmoller diagram) of 500 hPa or 1000 hPa mean height anomaly ...

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

Total accumulated rainfall charts identify areas at greater risk of significant rainfall (or rain equivalent e.g.snowfall) but give no information regarding whether this occurs over a short or prolonged time period...

This display helps with the recognition of clouds of different layers, even when they overlap. Brighter colouring represents greater cloud cover. Cloud-free areas appear white while areas of full cloud cover at all levels appear dark grey (e.g. active fronts)...

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...