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  • This dataset contains N80 Gaussian gridded, pressure level, analysis time step parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from September 1957 to August 2002. ERA-40 followed on from the ERA-15 re-analysis project. Access limited to UK based academic researchers only. These data are GRIB formatted.

  • This dataset contains 6-hourly monthly average N80 Gaussian gridded, potential vorticity level, analysis timestep parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from January 1958 to December 2001. ERA-40 followed on from the ERA-15 re-analysis project. Access limited to UK based academic researchers only. These data are GRIB formatted.

  • This dataset contains daily monthly average N80 Gaussian gridded, potential vorticity level, analysis timestep parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from January 1958 to December 2001. ERA-40 followed on from the ERA-15 re-analysis project. Access limited to UK based academic researchers only. These data are GRIB formatted.

  • Accumulated forecast parameters on a reduced N256 Gaussian grid from the European Centre for Medium-Range Weather Forecasts (ECWMF) ERA-Interim programme. The ERA-Interim global atmospheric reanalysis of the covers 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects. This subset of the ERA-Interim dataset contains 14 parameters on 60 model levels covering clear sky long and short wave radiation, up- and down-draft parameters, total precipitation, temperature and humidity tendencies, turbulent diffusion coefficient for heat, zonal and meridional wind tendencies.

  • ERA-Interim is the latest European Centre for Medium-Range Weather Forecasts (ECMWF) global atmospheric reanalysis of the period 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects. The dataset includes synoptic monthly mean accumulated forecast surface level data on a reduced N256 Gaussian grid. Forecast steps are every 3 hours from the 00 and 12 UT analysis times.

  • Surface level accumulated forecast parameters on a reduced N256 Gaussian grid from the European Centre for Medium-Range Weather Forecasts (ECWMF) ERA-Interim programme. The ERA-Interim global atmospheric reanalysis of the covers 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects This subset of the ERA-Interim dataset contains 34 parameters covering boundary layer, precipitation, radiation, wind, evaporation, run-off, gravity wave and surface heat flux data. The 34 parameters are: Clear sky surface photosynthetically active radiation; Downward UV radiation at the surface; Photosynthetically active radiation at the surface; Evaporation; TOA incident solar radiation; Stratiform precipitation (Large-scale precipitation); Convective precipitation; Snowfall (convective + stratiform); Boundary layer dissipation; Surface sensible heat flux; Surface latent heat flux; Surface solar radiation downwards; Surface thermal radiation downwards; Surface solar radiation; Surface thermal radiation; Top solar radiation; Top thermal radiation; East-west surface stress; North-south surface stress; Sunshine duration; Latitudinal component of gravity wave stress; Meridional component of gravity wave stress; Gravity wave dissipation; Runoff; Total precipitation; Convective snowfall; Large-scale snowfall; Large-scale precipitation fraction; Top net solar radiation, clear sky; Top upward thermal radiation, clear sky; Surface net solar radiation, clear sky; Surface net thermal radiation, clear sky; Snow evaporation; and, Snowmelt.

  • This monthly ozone climatology dataset was produced from a combination of satellite and ozonesonde data from 1966 to 1993. It was produced following the method described by Fortuin and Langematz (1994) and is used by the radiation code within the ECMWF IFS to generate the output from from ERA-Interim reanalysis model runs (see Dee et al. 2011 for further details). The ozone values are given in ppmv on 36 vertical pressure levels and 19 latitudinal bands. These are then internally interpolated to the grid used by the model before entering the radiation scheme. The 19 latitudinal bands the data are present are at: -90, -80, -70, -60, -50, -40, -30, -20, -10, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90 degrees. The climatology was originally produced by Fortuin and Langematz (1994) in response to the many GCMs at that time that used a prescribed ozone field. The aim was to generate a reference field with the required spatial and temporal coverage for use within modelling studies.

  • ERA-Interim is the latest European Centre for Medium-Range Weather Forecasts (ECMWF) global atmospheric reanalysis of the period 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects. The dataset includes synoptic monthly mean forecast pressure level data on a reduced N256 Gaussian grid. Forecast steps are every 3 hours from the 00 and 12 UT analysis times.

  • This dataset contains N80 Gaussian gridded, pressure level, forecast time step parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from September 1958 to August 2002. ERA-40 followed on from the ERA-15 re-analysis project. Access limited to UK based academic researchers only. These data are GRIB formatted.

  • ERA-Interim is the latest European Centre for Medium-Range Weather Forecasts (ECMWF) global atmospheric reanalysis of the period 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects. The dataset includes monthly mean of daily mean potential temperature level data on a reduced N256 Gaussian grid.