Datasets
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.
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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.
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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.
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These charts show indices which indicate the susceptibility of the troposphere to support free convection. Typical values of the different indices depend on location and...
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Interval/period: Thu, 06/01/1995 - Sat, 05/09/2026
Interval/period: Wed, 01/01/1992 - Sat, 05/09/2026
Interval/period: Wed, 01/01/1992 - Sat, 01/01/2022
Interval/period: Thu, 06/01/1995 - Tue, 12/31/2024
Forecasts using IFS EPS CY47R2 replicating operations (TCo639, ORCA025Z75). In this experiment, 251 members are forecast, rather than the usual 51. If you are interested in using these data, please let us know by contacting nicholas.leach@physics.ox.ac.uk .
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nextGEMS cycle2 coupled global 1-year simulation without parameterized deep convection. Grids: tco2559 for atmosphere and NG5 for ocean. Model versions: IFS 47r3.3 + upgrades and FESOM2.1. Starting date: 20/01/2020.
Examples
retrieve, class=rd, date=20200120, stream=LWDA, expver=hqys, type=fc, levtype=sfc, param=2t, anoffset=9, time=0, step=24, target='output.grib'Retrieve 2m temperature after 24 hours
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nextGEMS cycle2 coupled global 1-year simulation without parameterized deep convection. Grids: tco1279 for atmosphere and orca025 for ocean. Model versions: IFS 47r3.3 + upgrades and NEMO3.4. Starting date: 20/01/2020.
Examples
retrieve, class=rd, date=20200120, stream=LWDA, expver=hr2n, type=fc, levtype=sfc, param=2t, anoffset=9, time=0, step=24, target='output.grib'Retrieve 2m temperature after 24 hours
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nextGEMS cycle2 coupled global 2-year simulation with parameterized deep convection. Grids: tco1279 for atmosphere and orca025 for ocean. Model versions: IFS 47r3.3 + upgrades and NEMO3.4. Starting date: 20/01/2020.
Examples
retrieve, class=rd, date=20200120, stream=LWDA, expver=hrn6, type=fc, levtype=sfc, param=2t, anoffset=9, time=0, step=24, target='output.grib'Retrieve 2m temperature after 24 hours
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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 2003 to 2005. Spinup-time is two months (Nov-Dec 2002) and grid is reduced linear gaussian, TL255 (~80km horizontal resolution). Instantaneous aerosol MMR fields are stored on 16 pressure levels.
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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 2006 to 2008. Spinup-time is two months (Nov-Dec 2005) and grid is reduced linear gaussian, TL255 (~80km horizontal resolution). Instantaneous aerosol MMR fields are stored on 16 pressure levels.
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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 2009 to 2011. Spinup-time is two months (Nov-Dec 2008) and grid is reduced linear gaussian, TL255 (~80km horizontal resolution). Instantaneous aerosol MMR fields are stored on 16 pressure levels.
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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 2012 to 2014. Spinup-time is two months (Nov-Dec 2011) and grid is reduced linear gaussian, TL255 (~80km horizontal resolution). Instantaneous aerosol MMR fields are stored on 16 pressure levels.
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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.
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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.
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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.
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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.
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United States Climate Reference Network (USCRN) stations.
There are over 130 USCRN stations over the conterminous United States (U.S.), Alaska, and Hawaii.
The USCRN stations are managed and maintained by the U.S. National Oceanic and Atmospheric Administration (NOAA).
The USCRN observations include air temperature, humidity, wind speed, precipitation, solar radiation,
Interval/period: Sun, 01/01/2006 - Sat, 05/09/2026
The first is version 2 of the Integrated Global Radiosounding Archive (IGRA) from 1978 which incorporates global
radiosounding profiles of temperature, humidity and wind from a large number of data sources,
which is 30% larger than the previous version 1. IGRA v2 is the result of quality assurance procedures applied to the
Interval/period: Sun, 01/01/1978 - Sat, 05/09/2026
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