You are here: Home News CAMS releases first five years of new global reanalysis data set

CAMS releases first five years of new global reanalysis data set

by Enric Terradellas last modified May 08, 2018 12:24 PM

The Copernicus Atmosphere Monitoring Service (CAMS) has now released the first five years of the new CAMS global reanalysis data set. When the CAMS reanalysis has been completed later this year, it will provide a comprehensive and consistent data set of atmospheric composition and meteorology for the period 2003 – 2017, which will then be kept up-to-date as new observations become available.

The reanalysis combines an unprecedented amount of observations from past and current satellite instruments with state-of-the-art modelling from ECMWF’s Integrated Forecasting System (IFS) through the process of data assimilation. The new reanalysis follows in the footsteps of the earlier MACC reanalysis and CAMS interim reanalysis and will provide much improved information on aerosols and reactive gases using a fully integrated atmospheric composition modelling system with a global horizontal resolution of approximately 80 km. A separate reanalysis data set for the greenhouse gases CO2 and CH4 using the same IFS system will also be released later this year.

After the success of the previous MACC reanalysis, which has had about 3000 users since its release, the new CAMS reanalysis will provide a much-anticipated and improved data set supporting many users, for a multitude of scientific studies as well as applied services.

Information on how to access the data and detailed documentation is provided on the ECMWF Copernicus Knowledge Base. Information about the differences between the new reanalysis and its predecessors is also available. A comprehensive validation (quality control) report for the provided time period (2003 - 2007) is available on the CAMS web site. Users are encouraged to try out the released dataset, which will give them a head start on using the upcoming full dataset.

For further information, please contact the CAMS User Support team at

Document Actions