The CAMS EvOlution (CAMEO) project has received funding from the European Union's Horizon Europe research and innovation programme under grant agreement No 101082194.

The CAMS EvOlution (CAMEO) project will enhance the quality and efficiency of the CAMS service and help CAMS to better respond to policy needs such as air pollutant and greenhouse gases monitoring, the fulfilment of sustainable development goals, and sustainable and clean energy.


Reproduction of the publicly available content of this website is authorised, provided the source is acknowledged, save where otherwise stated.

ECMWF maintains this website to enhance public access to information CAMEO project. Our goal is to keep this information timely and accurate. If errors are brought to our attention, we will try to correct them. However, ECMWF accepts no responsibility or liability whatsoever with regard to the information on this site.

While abiding by the highest scientific and technical standards, ECMWF cannot warrant that any information provided by the CAMEO project will be entirely free from errors or omissions or that such errors or omissions can or will be rectified entirely. This applies particularly to information, tools and data from projects that continue to be developed, but are made publicly available for the purpose of feedback and testing. ECMWF aims to mark such information as ‘Proof Of Concept’.

References to geographical or other territories and groupings are based on terms provided to ECMWF by ECMWF Member States and Co-operating States, terminology used by other relevant international organisations or other sources deemed relevant by ECMWF. The use of such references and terminology used on this website, as well as, in the materials contained therein or linked to, do not constitute or imply an expression of opinion by ECMWF concerning the status of any State or territory, or its frontiers or sovereignty. The colours, boundaries and names shown and the designations used on maps available from or through this website are not intended to imply any judgment, official endorsement, or acceptance by ECMWF as to the legal status or frontier of any territory.

It is our goal to minimize disruption caused by technical errors. However, some data or information on our site may have been created or structured in files or formats that are not error-free and we cannot guarantee that our service will not be interrupted or otherwise affected by such problems. ECMWF accepts no responsibility with regard to such problems incurred as a result of using this site or any linked external sites.

ECMWF may change material on the site without prior notice.

Cookies & Google Analytics

By using the CAMEO website, you agree to these terms and consent to our use of cookies.

This website uses cookies. Cookies are files that are sent by servers to web browsers, and which may then be sent back to the server each time the browser requests a page from the server. They are used to identity and track users as they navigate different pages on a website, and to identify users returning to a website. Some Cookies will be stored by the browser and expire later, some will expire at the end of each user session. This website uses both types of cookies.

This website also uses Google Analytics, a web analytics service provided by Google, Inc. (“Google”). Google Analytics uses Cookies. The information generated by the Cookie about your use of the website (including your IP address) will be transmitted to and stored by Google on servers in the United States. Google will use this information for the purpose of evaluating your use of the website, compiling reports on website activity for website operators and providing other services relating to website activity and internet usage. Google may also transfer this information to third parties where required to do so by law, or where such third parties process the information on Google’s behalf. Google will not associate your IP address with any other data held by Google.

Most browsers allow you to refuse cookies. Please note that this may have a negative impact on the usability of this website.

Social Media Plugins

This website may use plugins, e.g. social media plugins from Facebook or Twitter, which are technically operated outside the EU in many cases (please refer to the websites,,, or for the providers). The plugins are identified with the companies’ logo and what is known as a »Like« or »+1« button.

In most cases, if you browse our website, your web browser will create a direct connection to the servers of the respective provider in the country concerned. The provider will learn at the least that you have visited a particular page on our website. Further information may be disclosed. The content of the plugin is loaded by your web browser directly from the provider and incorporated into our website. If you are registered and have logged in with the same provider (i.e. if you are logged on to e.g. your personal Facebook account), your visit can also be assigned to your user account.

If you interact with a plugin, e.g. if you click on the on one of the buttons, your browser will also transmit this information directly to the provider where it will be saved and processed under the provider’s data protection rules.

Above all, marketing measures of the providers and ECMWF are the reason for the collection and use of the data as described. Please refer to the privacy policy of the providers for details.

If you do not wish a provider to collect data on you through our website you must deactivate the plugins in your web browser. If you wish to avoid a link to any existing user account, you must log out before your visit to our website.

By visiting our website, you declare your consent to the above provisions.

Logos and Pictures

1. ECMWF Logo

Owners of external web sites who would like to link to the ECMWF web site may use the ECMWF logo for the link but for no other purposes.

2. European Emblem
The principles of use of the European Emblem by third parties have been set out in an administrative agreement with the Council of Europe. This agreement has been published in the Official Journal of the European Union on 08/09/2012 (2012/C 271/04).

According to this agreement, any natural or legal person (“third party user”) may use the European Emblem or any of its elements, as long as this use

  1. does not create the impression or assumption that there is a connection between the third party user and any of the institutions, bodies, offices, agencies and organs of the European Union or the Council of Europe where this connection does not exist;
  2. does not lead the public to believe that the user benefits from the support, sponsorship, approval or consent of any of the institutions, bodies, offices, agencies and organs of the European Union or the Council of Europe where this is not the case;
  3. is not made in connection with any objective or activity which is incompatible with the aims and principles of the European Union or the Council of Europe, or is otherwise unlawful.

If the use of the European Emblem complies with the above conditions, there is no need to ask for written permission.

Registration of the European Emblem, or a heraldic imitation thereof, as a trade mark or as any other IP right is prohibited.

Questions related to use of the European Emblem can be directed to:

European Commission
Joint Research Centre, DDG.03 – Central IP Service
CDMA 4/102
B-1049 Brussels (Belgium)

3. Press Pictures

ECMWF press photos may only be used for editorial purposes. All copyrights belong to ECMWF, unless another copyright is expressly given. Copyrights remain undiminished if the pictures are incorporated into an archive, either electronically or manually. Pictures used for editorial purposes, modified, duplicated and/or electronically altered must bear the credit “© ECMWF” embedded in the picture’s metadata. Commercial use or sale of the pictures and data, even in electronically manipulated form, is prohibited.

Specific restrictions regarding the use of the pictures may arise from the picture caption.

The photos may be printed free of charge, but in the case of print media we would appreciate a copy for our records. If pictures are used in films or electronic media, brief notification would suffice.

Access to third party information

These terms and conditions only cover data and information from CAMEO. Access to information from third parties to which the user is directed through this portal may be subject to different license terms.

Appropriate conduct

While using the data from CAMEO you agree that you are solely responsible for complying with these terms and conditions and with any other obligation that may be applicable under law.

Data privacy

Please see our Privacy Policy.