Datasets
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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The air flow is not the same at all levels and can be very different in strength and direction when associated with vigorous weather systems...
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noAircraft experiment (other all usual observation types assimilated) for aircraft Observing System Experiment (OSE) see Ingleby et al (2021), https://doi.org/10.1029/2020GL090699 . Experiment from 2019-01-28 to 2019-04-30, control is h4qi.
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noAircraftT experiment (other all usual observation types assimilated) for aircraft Observing System Experiment (OSE) see Ingleby et al (2021), https://doi.org/10.1029/2020GL090699 . Experiment from 2019-01-28 to 2019-04-30, control is h4qi.
Examples
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Lower values mean that more radiation is absorbed at the earth's surface while higher values mean more is reflected back to space. Albedo depends on the characteristics of the underlying surface and...
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LAPrec1871 starts in 1871 and is based on data from 85 input series;
LAPrec1901 starts in 1901 and is based on data from 165 input series.
Interval/period: Sun, 01/01/1871 - Sun, 07/05/2026
Research analysis experiment produced with ECMWF IFS cycle 47R1, at TCo399 (25km), for the EUREC4A field campaign (15.01.2020-14.02.2020). The dropsondes launched in the campaign are denied from the data assimilation.
Examples
retrieve, class=rd, stream=lwda, expver=hfa8, type=an, levtype=ml, levellist=137/to/106, param=T/Q, date=2020-01-16, time=00:00:00, step=0, target='TQ_0utc.grib'Retrieval of temperature and humidity from the analysis on model levels on original model grid
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Analysis experiement with the IFS cycle 47R1, on a cubic horizontal grid with a 399 spectral truncature, and 137 vertical levels. The cloud sink control variable is turned off. Experiment described as TOVSCV in Massart et al. (2021). Period of interest: 1 July 2019 to 30 September 2019.
Examples
retrieve, class=rd, stream=lwda, expver=hg65, type=fc, levtype=sfc, param=skt, date=2019-07-01, time=06:00:00, step=3, target='output.grib'Skin temperature forecast at time 06:00Z for 1 July 2019
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Analysis experiement with the IFS cycle 47R1, on a cubic horizontal grid with a 399 spectral truncature, and 137 vertical levels. The cloud sink control variable is turned off. Experiment described as TOVSCV in Massart et al. (2021). Period of interest: 1 January 2020 to 31 March 2020.
Examples
retrieve, class=rd, stream=lwda, expver=hgef, type=fc, levtype=sfc, param=skt, date=2020-01-01, time=06:00:00, step=3, target='output.grib'Skin temperature forecast at time 06:00Z for 1 January 2020
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These charts show the difference between the latest HRES Long Window Data Analysis (LWDA) for the main synoptic hours of 00, 06, 12 and 18UTC, and its corresponding background field taken from the previous HRES LWDA run with the same validity time...
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Research analysis experiment produced with ECMWF IFS cycle 47R1, at TCo399 (25km), for the EUREC4A field campaign (15.01.2020-14.02.2020). The dropsondes and radiosondes launched in the campaign are denied from the data assimilation.
Examples
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Research analysis experiment produced with ECMWF IFS cycle 47R1, at TCo399 (25km), for the EUREC4A field campaign (15.01.2020-14.02.2020). The shallow convection momentum transport is turned off
Examples
retrieve, class=rd, stream=lwda, expver=hg1z, type=an, levtype=ml, levellist=137/to/106, param=T/Q, date=2020-01-16, time=00:00:00, step=0, target='TQ_0utc.grib'Retrieval of temperature and humidity from the analysis on model levels on original model grid
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Analysis experiement with the IFS cycle 47R1, on a cubic horizontal grid with a 399 spectral truncature, and 137 vertical levels. The skin temperature analysis for the assimilation of the radiance is realised with the augmented control variable. Experiment described as SKTACV in Massart et al.
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Analysis experiement with the IFS cycle 47R1, on a cubic horizontal grid with a 399 spectral truncature, and 137 vertical levels. The skin temperature analysis for the assimilation of the radiance is realised with the augmented control variable. Experiment described as SKTACV in Massart et al.
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These daily and monthly data are pre-calculated and have the following types depending on the variables: daily and monthly averages, extremes and totals.
Interval/period: Sat, 09/01/1990 - Sat, 02/28/2026
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This chart shows the spatial variation in the Relative Operating Characteristics (ROC) skill ...
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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 shows the spatial variation in the Anomaly Correlation Coefficient (ACC) for the ...
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The ECMWF seasonal forecasts (SEAS5) are produced every month with a 51-member ensemble at ...
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The charts show totals of large scale precipitation, convective precipitation, and the total of precipitation during the 6 hour period previous to the selected validity time...
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