CAMS Reanalysis
Data and Resources
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CAMS Reanalysis
The CAMS reanalysis dataset covers the period January 2003 to June 2022. The...
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CAMS Reanalysisgrib2, grib1
The CAMS reanalysis dataset covers the period January 2003 to June 2022. The...
Additional Info
Field | Value |
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Source | https://www.ecmwf.int/en/research/climate-reanalysis/cams-reanalysis |
Last Updated | September 24, 2025, 21:20 (UTC) |
Created | September 24, 2025, 21:16 (UTC) |
Download Documentation | https://confluence.ecmwf.int/display/CKB/CAMS%3A+Reanalysis+data+documentation#CAMS:Reanalysisdatadocumentation-Dataorganisationandaccess |
Format | Model level fields are in GRIB2 format. All other fields are in GRIB1, unless otherwise indicated. |
Organization | European Centre for Medium-Range Weather Forecasts |
Update Frequency | Generally, the data are available at a sub-daily and monthly frequency and consist of analyses and 48h forecasts, initialised daily from analyses at 00 UTC. For sub-daily data for the CAMS reanalysis, the analyses are available 3-hourly. The daily forecast, run from 00 UTC, has 3-hourly steps from 0 to 48 hours for the 3D model level and pressure level fields, and hourly steps from 0 to 48 hours for the surface fields. Several parameters are also available as synoptic monthly means, for each particular time and forecast step and as monthly means of daily means, for the month as a whole. Monthly means for analyses and instantaneous forecasts are created from data with a valid time in the month, between 00 and 23 UTC, which excludes the time 00 UTC on the first day of the following month. Monthly means for accumulations and mean rates are created from data with a forecast period falling within the month. For example, monthly means of daily means for accumulations and mean rates are created from contiguous data with forecast periods spanning from 00 UTC on the first day of the month to 00 UTC on the first day of the following month. |