ECMWF-15 Reanalysis: Summary

Go To: Temporal Coverage | Spatial Coverage | Levels | Update Schedule | Download/Plot Data | Restrictions | Details | Caveats | File Naming | Citation | References | Original Source | Contact

One-Line Description:

  • ECMWF (European Center for Medium Range Forecasting) Reanalysis-15.

Temporal Coverage:

  • 6 hourly: 1979/01/01 0z to 1993/12/31 18z.
  • Daily mean: 1979/01/01 to 1993/12/31.
  • Monthly mean: 1979/01 to 1993/12.

Spatial Coverage:

  • 2.5 degrees latitude, 2.5 degrees longitude global grid (144x73).
  • 90.0N - 90.0S, 0E -357.5E.

Levels:

  • Pressure levels variables:1000 , 925 , 850 , 775 , 700 , 600 , 500 , 400 , 300 , 250 , 200 , 150 , 100 , 70 , 50 , 30 , 10 (all mb).

Update Schedule:

  • Static
We have separated the data documentation into three sections:

Download/Plot Data:

Usage Restrictions:

Detailed Description:

  • None

Caveats:

  • None

Related File Naming & Structure Information:

File Names:

  • var.year.nc   (In directory: /Datasets.private/ecmwf-15.reanalysis/)
  • var.year.nc   (In directory: /Datasets.private/ecmwf-15.reanalysis.dailyavgs/)
  • var.mon.mean.nc   (In directory: /Datasets.private/ecmwf-15.reanalysis.derived/)

Dataset Format and Size:

  • CDC standard NetCDF 521-30.7 Mbyte for each 4-times daily file (packed).
  • CDC standard NetCDF 130-7.8 Mbyte file for daily mean file (packed).
  • CDC standard NetCDF 64-3.8 Mbyte file for monthly mean (packed).

Missing Data:

  • Quoting ECMWF newsletter of 27 March 1997 from NCAR:

    "Missing fields in reanalyses

    In ds115.0 (the surface analyses), total column water (parameter 136) is not available from 1 September 1980 through 31 December 1981. This field was not introduced into the processing until January 1982, but the period from 1 January 1979 to 31 August 1980 was re-processed and this field was produced during this re-run.

    In ds115.2 (the supplementary fields), downward surface solar and thermal radiation (parameters 169 and 175) are not available from 1 September 1980 through December 1982 for similar reasons. These fields were not included in the post-processing for reanalysis production until January 1983."

Citation:

  • Please note: If you acquire ECMWF_Reanalysis-15 data products from PSD, we ask that you acknowledge us in your use of the data. This may be done by including text such as ECMWF_Reanalysis-15 data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.cdc.noaa.gov/ in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSD to justify keeping the ECMWF_Reanalysis-15 data set freely available online in the future. Thank you!

References:

Original Source:

Contact:

  • Physical Sciences Division: Data Management
    NOAA/ESRL/PSD
    325 Broadway
    Boulder, CO 80305-3328
    esrl.psd.data@noaa.gov