ECMWF ERA5 global 0.25° x 0.25° reanalysis

ERA5 Reanalysis - monthly mean, daily mean and hourly for select variables

ERA5 is the fifth generation ECMWF reanalysis for the global climate and weather for the past 4 to 7 decades. The data assimilation system used to produce ERA5 is the IFS Cycle 41r2 4D-Var.

ERA5 reanalysis currently covers the 1979 to present time period and replaces the ERA-Interim reanalysis. The monthly preliminary back extension (1950-1978) is also provided. Please see tropical cyclones are too intense in preliminary back extension version

ERA5 strengths compared to ERA-Interim:

For more information, please refer to ERA5 data documentation and ECMWF's What are the changes from ERA-Interim to ERA5?

Please acknowledge the use of ERA5 as stated in the Copernicus C3S/CAMS License agreement.

You may also cite the ERA5 dataset as follows:
Dataset citable as: Copernicus Climate Change Service (C3S) (2017): ERA5: Fifth generation of ECMWF atmospheric reanalyses of the global climate . Copernicus Climate Change Service Climate Data Store (CDS), date of access. https://cds.climate.copernicus.eu/cdsapp#!/home

WARNING: Some ERA5 hourly data (which affects daily data) was corrupt in the ERA5 CDS catalogue entries (datasets). These have been updated here on April 21, 2021. For more information please see ERA5 CDS: Data corruption.

Variables
monthly: surface pressure [pa], mean sea level pressure [pa], 10 metre u wind component [m s**-1], 10 metre v wind component [m s**-1], 2 metre temperature [k], skin temperature [k], sea surface temperature [k], total precipitation [m], instantaneous eastward turbulent surface stress [n m**-2], instantaneous northward turbulent surface stress [n m**-2], boundary layer height [m],geopotential [m**2 s**-2], temperature [k], specific humidity [kg kg**-1], vertical velocity [pa s**-1], relative humidity [%], u wind component [m s**-1], v wind component [m s**-1]
daily: geopotential [m**2 s**-2], temperature [k], specific humidity [kg kg**-1], vertical velocity [pa s**-1], u wind component [m s**-1], v wind component [m s**-1]
hourly: Surface pressure [pa], Surface solar radiation downwards [W m**-2 s], Surface solar radiation [W m**-2 s], Surface thermal radiation downwards [W m**-2 s], 10 metre u wind component [m s**-1], 10 metre v wind component [m s**-1], 2 metre temperature [k], Surface total precipitation [m], 1000 mb specific humidity [kg kg**-1], Boundary layer height [m]
Zonal Global by 0.25 deg
Meridional Global by 0.25 deg
VerticalMonthly: 1000 975 950 925 900 875 850 825 800 775 750 700 650 600 550 500 450 400 350 300 250 225 200 175 150 125 100 70 50 30 20 10 mbar 
Daily: 1000 975 950 925 900 875 850 825 800 775 750 700 650 600 550 500 450 400 350 300 250 225 200 175 150 125 100 mbar 
Temporal monthly: Jan 1979 to Mar 2021 by month
preliminary monthly: Jan 1950-Dec 1978 by month
daily mean: Jan 1979 to Mar 2021 by day
hourly: Jan 1979 to Mar 2021 by hour
Static?no
Volume monthly: ~24MB/year/single level variable; hourly: ~17GB/year/single level variable
Serverpublic:
Sourcehttps://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-pressure-levels-monthly-means?tab=overview 
Acquired May 2019 (Updated Apr 2021)
APDRC contact
SupplementsERA5 data documentation