Datasets

TCo399 experiment denying the assimilation of GNSS-RO observations between 20221001-20230430.

Examples

Retrieve geopotential analysis fields on pressure levels

TCo399 experiment denying the assimilation of GNSS-RO observations between 20231001-20240430.

Examples

Retrieve geopotential analysis fields on pressure levels

TCo399 experiment assimilating GNSS-RO observations between 20201001-20210430.

Examples

Retrieve geopotential analysis fields on pressure levels

TCo399 experiment assimilating GNSS-RO observations between 20211001-20220430.

Examples

Retrieve geopotential analysis fields on pressure levels

TCo399 experiment assimilating GNSS-RO observations between 20221001-20230430.

Examples

Retrieve geopotential analysis fields on pressure levels

TCo399 experiment assimilating GNSS-RO observations between 20231001-20240430.

Examples

Retrieve geopotential analysis fields on pressure levels

Atmosphere only forecast experiment with updated observed sea ice concentration from the ECMWF operational analysis. 10-day high resolution (TCo1279) forecast experiments performed with Cy46r1 of the ECMWF-IFS were initialised at 0z for DJFM2017/18.

Examples

retrieve 2m temperature at 24 hours into the forecast

Atmosphere only forecast experiment with sea ice concentration persisted from the ECMWF operational analysis. 10-day high resolution (TCo1279) forecast experiments performed with Cy46r1 of the ECMWF-IFS were initialised at 0z for DJFM2017/18.

Examples

retrieve 2m temperature at 24 hours into the forecast

Coupled atmosphere-ice-ocean forecast experiment. SSTs partially coupled in the extratropics. 10-day high resolution (TCo1279) forecast experiments performed with Cy46r1 of the ECMWF-IFS were initialised at 0z for DJFM2017/18.

Examples

retrieve 2m temperature at 24 hours into the forecast

High-resolution forecast experiment

Examples

Download 2m temperature

This dataset contains parameters from four-month long seasonal reforecasts using ECMWF IFS cycle CY49R1 v-version 4 covering the period 1993-2019 and forced with datasets for Leaf Area Index (LAI) and Land Use/Land Cover (LULC) developed in the CONFESS project (https://confess-h2020.eu). The reforecasts uses time varying LAI and LULC based on version climate.v020_ESACCI_LAI of the IFS climate fields and can be compared against the CONTROL experiment (i14x) that uses climatological LAI and fixed LULC.

This dataset provides output from a 10-member ensemble global atmosphere simulation covering the period 1980 to 2023 produced with the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using a Tco399 L137 configuration of the IFS, which has an average horizontal grid spacings of ∼28 km. The simulation is constrained by time-evolving external climate forcings, including observed greenhouse gas and aerosol concentrations.

This dataset provides output from a 10-member ensemble global atmosphere simulation covering the period 1980 to 2023 produced with the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using a Tco399 L137 configuration of the IFS, which has an average horizontal grid spacings of ∼28 km. The simulation is constrained by time-evolving external climate forcings, including observed greenhouse gas and aerosol concentrations.

This dataset provides output from a single member global atmosphere simulation covering the period 1980 to 2023 produced with the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using a Tco399 L137 configuration of the IFS, which has an average horizontal grid spacings of ∼9 km. The simulation is constrained by time-evolving external climate forcings, including observed greenhouse gas and aerosol concentrations.

This dataset provides output from a 10-member ensemble global atmosphere reference simulation covering the period 1980 to 2023 produced with the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using a Tco399 L137 configuration of the IFS, which has an average horizontal grid spacings of ∼28 km.

This dataset provides output from a single member global atmosphere reference simulation covering the period 1980 to 2023 produced with the European Centre for Medium-Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using a Tco1279 L137 configuration of the IFS, which has an average horizontal grid spacings of ∼9 km.

This dataset is from an ensemble forecast initiated on 3 October 2023 at 0 UTC. Key details: IFS cycle 48r1,TCo1279 (9km), 137 levels, 450s (7.5 min) timestep, 48h run, 10+1 members, EDA initial conditions (no singular vector perturbations), no model uncertainty, 1 hourly archiving 0-24h, 3 hourly archiving 24-48h.

One model cycle of ECMWF ensemble prediction system set up to explore data information content in the scope of a ESoWC project. Perturbed and control forecast of temperature on 91 model levels are archived. The data is encoded as IEEE single-precision (32-bit floats) circumventing any other lossy compression. This is in contrast to the default 16- or 24-bit linear packing used in the ECMWF data archive. The volume of the full experiment is 1 TB.

Examples

SNAPSI case study of Northern Hemisphere strong polar vortex case in the stratosphere, initialised on 2022-01-01. TCo319L137 resolution 51-member ensemble, integrated for 70 days. Nudging to the zonal-mean.

Examples

Scores of forecasts of surface parameters by experimental machine learning models

These plots compare recent IFS and experimental AIFS verification scores for 500 hPa ...

These plots compare recent IFS and experimental AIFS verification scores for 500 hPa ...

Forecasts using IFS EPS CY47R3b replicating operations (51 members, TCo639, ORCA025Z75). These forecasts were run after the HPCF move to Bologna on the ATOS system, and therefore are not necessarily bit-identical to the operational forecasts at the time - but are statistically equivalent. The ocean state has had a hydrostatically balanced estimate of anthropogenic influence (warming) since 1850-1900 added, such that the total anthropogenic influence is twice estimated at the present day (an equal but opposite perturbation to expid b2r1).

Forecasts using IFS EPS CY47R3b replicating operations (51 members, TCo639, ORCA025Z75). These forecasts were run after the HPCF move to Bologna on the ATOS system, and therefore are not necessarily bit-identical to the operational forecasts at the time - but are statistically equivalent. The ocean state has had a hydrostatically balanced estimate of anthropogenic influence (warming) since 1850-1900 added, such that the total anthropogenic influence is twice estimated at the present day (an equal but opposite perturbation to expid b2r8).

Forecasts using IFS EPS CY47R3b replicating operations (51 members, TCo639, ORCA025Z75). These forecasts were run after the HPCF move to Bologna on the ATOS system, and therefore are not necessarily bit-identical to the operational forecasts at the time - but are statistically equivalent. The ocean state has had a hydrostatically balanced estimate of anthropogenic influence (warming) since 1850-1900 removed. The CO2 concentration was set to 285 ppm.