Datasets

IFS-COMPO CY49R1 free-running simulation of atmospheric composition (chemistry, aerosol), with meteorology re-initialized from ERA5 every day at 00UTC, with three-hourly output for the years 2015 to 2017. Spinup-time is two months (Nov-Dec 2014) and grid is reduced linear gaussian, TL255 (~80km horizontal resolution). Instantaneous aerosol MMR fields are stored on 16 pressure levels.

Examples

IFS-COMPO CY49R1 free-running simulation of atmospheric composition (chemistry, aerosol), with meteorology re-initialized from ERA5 every day at 00UTC, with three-hourly output for the years 2018 to 2020. Spinup-time is two months (Nov-Dec 2017) and grid is reduced linear gaussian, TL255 (~80km horizontal resolution). Instantaneous aerosol MMR fields are stored on 16 pressure levels.

Examples

IFS-COMPO Reference experiment for fire emission sensitivity evaluation. This experiment uses a CY50R1 esuite model configuration, but with updates to the isoprene degradation chemistry, along with a basic implementation of C2H2 chemistry, as planned for CY51R1. Otherwise, this experiment is run as a series of 24h forecasts excluding assimilation of atmospheric composition on T511 horizontal resolution. Default GFAS fire emissions are employed here.

Examples

IFS-COMPO Reference experiment for fire emission sensitivity evaluation. This experiment uses a CY50R1 esuite model configuration, but with updates to the isoprene degradation chemistry, along with a basic implementation of C2H2 chemistry, as planned for CY51R1. Otherwise, this experiment is run as a series of 24h forecasts excluding assimilation of atmospheric composition on T511 horizontal resolution. This experiment uses daily fire emissions from the FINN database.

Examples

Forecasts using IFS EPS CY47R2 replicating operations (51 members, TCo639, ORCA025Z75). The CO2 concentration was set to 615 ppm. If you are interested in using these data, please let us know by contacting nicholas.leach@physics.ox.ac.uk .

Examples

4-month long 101-ensemble member seasonal attribution experiment (IC98) initialised on 01-November-1997 using the atmosphere-only version of SEAS5 (see Johnson et al., 2019) forced with daily ERA5 SST as in the reference experiment (R98) but with daily SST climatology over the tropical Indian Ocean.

Examples

4-month long 101-ensemble member seasonal attribution experiment (IC16) initialised on 01-November-2015 using the atmosphere-only version of SEAS5 (see Johnson et al., 2019) forced with daily ERA5 SST as in the reference experiment (R16) but with daily SST climatology over the tropical Indian Ocean.

Examples

4-month long 101-ensemble member seasonal attribution experiment (IC20) initialised on 01-November-2019 using the atmosphere-only version of SEAS5 (see Johnson et al., 2019) forced with daily ERA5 SST as in the reference experiment (R20) but with daily SST climatology over the tropical Indian Ocean.

Examples

This experiment is a prototype. It has several important limitations. It is not an ERA6 production. It has known missing components. It should not be used for any application or publication. It should be used to provide feedback to ECMWF.

Examples

This experiment is a prototype. It has several important limitations. It is not an ERA6 production. It has known missing components. It should not be used for any application or publication. It should be used to provide feedback to ECMWF.

Examples

This is a 4 month seasonal hindcast experiment with CY49R1 at TCo199 initialised from an open loop land-surface analysis (as in iwvp) except that over Eurasia values are replaced with climatological values for the initial day (calculated from the open loop the period 1993-2022)

Examples

This is a 4 month seasonal hindcast experiment with CY49R1 at TCo199 initialised from an open loop land-surface analysis (as in iwvp) except that over North America values are replaced with climatological values for the initial day (calculated from the open loop the period 1993-2022)

Examples

Coupled ensemble forecasts (60 days, 8+1 members), 1 Jan 1981-2016, IFS-CY43R3 TCo319L91, no initial perturbations, SPPT applied only in (50E-120E, 20N-20S). Twice-daily global pressure-level gridded F80 atmospheric fields.

Examples

Coupled ensemble forecasts (60 days, 50+1 members), 1 Jan 1987,1990,1995,2010,2013, IFS-CY43R3 TCo319L91, no initial perturbations, SPPT applied only in (50E-120E, 20N-20S). Twice-daily global pressure-level gridded F80 atmospheric fields.

Examples

Coupled ensemble forecasts (60 days, 8+1 members), 1 Nov 1981-2016, IFS-CY43R3 TCo319L91, no initial perturbations, SPPT applied only in (50E-120E, 20N-20S). Twice-daily global pressure-level gridded F80 atmospheric fields.

Examples

Coupled ensemble forecasts (60 days, 50+1 members), 1 Nov 2002, IFS-CY43R3 TCo319L91, no initial perturbations, SPPT applied only in (50E-120E, 20N-20S). Twice-daily global pressure-level gridded F80 atmospheric fields.

Examples

Research forecast experiment produced with ECMWF IFS cycle 47R1, at TCo399 (25km), for the EUREC4A field campaign (15.01.2020-14.02.2020). Initialized from the hfa8 analysis, in which no dropsondes are assimilated, with fields saved on model levels (bit identical to hfa8 forecasts)

Examples

Research forecast experiment produced with ECMWF IFS cycle 47R1, at TCo399 (25km), for the EUREC4A field campaign (15.01.2020-14.02.2020). Initialized from the hfff analysis, in which no dropsondes and no radiosondes are assimilated, with fields saved on model levels (bit identical to hfff forecasts)

Examples

Research forecast experiment produced with ECMWF IFS cycle 47R1, at TCo399 (25km), for the EUREC4A field campaign (15.01.2020-14.02.2020). Initialized from the hg1z analysis, with fields saved on model levels (bit identical to hg1z forecasts)

Examples

Coupled forecast with the new gravity-capillary model and nonlinear renormalisation of the growth rate in ecWAM. Tc1279 resolution (9km), from 2019-03-22 0 UTC, hourly output from step 1 to 72 hours code branch: wab_CY47R3.0_wam.IFS-1944

Examples

Coupled forecast WITHOUT the new gravity-capillary model and nonlinear renormalisation of the growth rate in ecWAM. Tc1279 resolution (9km), from 2019-03-22 0 UTC, hourly output from step 1 to 72 hours code branch: wab_CY47R3.0_wam.IFS-1944

Examples

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).

Tropical relaxation experiment run at Tco199 for 46 days over 20 years starting on 12, 16 , 19, 23, 26 , 30 December and 2nd, 6th and 9th January 1999-2018.

Examples

Retrieving 2-meter temperature of the hindcast starting on 12 December 2019 for all perturbed members.

50-member extended-range hindcasts (46 days) targeting 2018 stratospheric sudden warming. Two initialisation dates considered: 2018-01-27 and 2018-01-31. Resolution TCo639L137. CY47R3.

Examples

Contains uncompressed IEEE-754 Standard (1985) 64-bit floating-point single-time atmospheric and wave model (long window 4Dvar) outputs for experiment version 'hplp'. Surface, and model and pressure levels are available for the atmospheric model.

Examples

Get day-one forecast of 2 metre air temperature (single level)