Our Privacy Policy Section

Terms and conditions

The CO2MVS Research on Supplementary Observations (CORSO) project has received funding from the European Union's Horizon Europe research and innovation programme under grant agreement No 101082194. 

The CORSO project will contribute to the development of the European capacity for the monitoring of anthropogenic CO2 emissions. CORSO will deliver capabilities at global and local scale to optimally use observations of co-emitted species using their emission ratios and uncertainties to better estimate anthropogenic CO2 emissions.


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 CORSO 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 CORSO 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 CORSO 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 uses 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 http://www.facebook.com, http://www.twitter.com, http://www.instagram.com, http://www.slideshare.net or http://www.google.com 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)
E-mail: EC-EU-EMBLEM@ec.europa.eu

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 CORSO. 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 CORSO 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.

Data Protection and Privacy Statement

This Application collects some Personal Data from its Users.


The European Centre for Medium-Range Weather Forecasts (ECMWF) takes great care to protect personally identifiable information of all data subjects with whom ECMWF interacts. Throughout 2018 and 2019, ECMWF has been implementing all elements of ECMWF’s Policy on Personally Identifiable Information Protection (PIIP) that aims to ensure an adequate level of protection relative to the European Union’s standards reflected in Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016, the General Data Protection Regulation (GDPR). While these standards do not directly apply to ECMWF, an inter-governmental organisation, ECMWF has chosen to provide, as controller or processor, similar and appropriate safeguards through its PIIP. The PIIP is available to download here. By accessing the CORSO Project website, some of your personal data will be collected and processed by ECMWF.

1. Data Controller

This site is operated by ECMWF on behalf of the CORSO

2. Categories of Data Processed

When accessing the CORSO website, your Internet Protocol (IP) address will be recorded.
When contacting us through the website’s contact form, the only personal data collected and further processed is your name and email address.

3. Purpose(s) of the Processing

When you access the CORSO website, we may use the personal data collected to perform an analysis of the use of the services and to derive use statistics of all items and services available on the CORSO website in order to improve service performance as well as user relations and experience.
When you contact us through the website’s contact form, we collect and process your personal data to respond to any queries you have raised.

4. Recipients of the Data Processed

For the purpose detailed above, access to your personal data is given to ECMWF and members of the CORSO Consortium.

Where it is necessary in the operation of our services, we may share (or enable access to) your personal data with trusted partners, including service providers or other partners who help us deliver our products and services, perform statistical analysis, manage email services, provide user support.

We will only transfer personal data outside the European Economic Area or to another international organisation if we determined that adequate safeguards are in place to protect such personal data.

5. Security of your personal data

ECMWF secures your personal data from unauthorised access, use or disclosure. Our computer servers and software applications operate in a controlled, secure environment and we adopt internationally recognised security best practice standards and techniques to manage the security of your personal information throughout its lifetime, from creation to destruction. We have implemented robust processes to deal with any suspected security incidents that may include notifying you of any breaches of your personal data.

6. Right of Access, Rectification, Erasure and Objection

You may ask ECMWF to access a copy of your personal data, as well as to rectify and erase any such data. You have right to object to ECMWF processing your personal data. Any such as well as further requests you should address in writing to the ECMWF PII Protection Officer at the following addresses: pii-protection-officer@ecmwf.int or ECMWF, PII Protection Officer, Shinfield Park, Reading, RG2 9AX, United Kingdom.

7. Data Retention

The information collected and processed when accessing our web will be retained for 5 years.

The information you provide when signing up to our mailing list or contacting us through the website’s contact form will be retained for the duration of the CORSO project.

Please note that ECMWF will not be in control of personal data which it legally passed on to other data controllers.

8. Concerns and Complaints

ECMWF does not accept any liability with a view to obligations under applicable personally identifiable information legislation for any third party website which are linked to through the CORSO website. Please refer to the privacy policy governing each of these websites.

If you have a concern or complaint about the way that your personal data has been or is being processed, please direct it to the ECMWF PII Protection Officer, Shinfield Park, Reading, RG2 9AX, United Kingdom, pii-protection-officer@ecmwf.int

9. Changes to this Data Protection and Privacy Statement

ECMWF will occasionally update this Data Protection and Privacy Statement to reflect organisational changes and user feedback. We encourage you to periodically review this Data Protection and Privacy Statement to stay informed on how we use and protect your personal information.

1st May 2023


Cookies consist of portions of code installed in the browser that assist the owner in providing the service based on the purposes described. Some of the purposes of installing cookies may also require the consent of the user. When the installation of cookies takes place on the basis of consent, this consent can be revoked freely at any time following the instructions contained in this document.

Cookies are small text files that may be sent to and registered on your computer by the websites you visit, to then be re-sent to those same sites when you visit them again. It is thanks to these cookies that those websites can “remember” your actions and preferences (e.g., login data, language, font size, other display settings, etc.), so that you do not need to configure them again when you next visit the website, or when you change pages within a website.

Cookies are used for electronic authentication, monitoring of sessions and storage of information regarding your activities when accessing a website. They may also contain a unique ID code which allows tracking of your browsing activities within a website, for statistical or advertising purposes. Some operations within a website may not be able to be performed without the use of cookies which, in certain cases, are technically necessary for operation of the website.

When browsing a website, you may also receive cookies from websites or web servers other than the website being visited (i.e., “ third-party cookies”).

There are various types of cookies, depending on their characteristics and functions, which may be stored on your computer for different periods of time: “session cookies”, which are automatically deleted when you close your browser, and “persistent cookies”, which will remain on your device until their pre-set expiration period passes.

According to the law which may be applicable to you, your consent may not always be necessary for cookies to be used on a website. In particular, “ technical cookies” – i.e. cookies which are only used to send messages through an electronic communications network, or which are needed to provide services you request – typically do not require this consent. This includes browsing or session cookies (used to allow users to login) and function cookies (used to remember choices made by a user when accessing the website, such as language or products selected for purchase).

On the other hand, “profiling cookies” – i.e., cookies used to create profiles on users and to send advertising messages in line with the preferences revealed by users while browsing websites – typically require specific consent from users, although this may vary according to the applicable law.

- Types of cookies used by the Website

The Website uses the following types of cookies:

  • Browsing or session cookies, which are strictly necessary for the Website’s operation, and/or to allow you to use the Website’s content and Services.
  • Analytics cookies , which allow ECMWF to understand how users make use of the Website, and to track traffic to and from the Website.
  • Function cookies , which are used to activate specific Website functions and to configure the Website according to your choices (e.g., language), in order to improve your experience.

ECMWF also uses third-party cookies – i.e.cookies from websites / web servers other than the Website, owned by thirdparties. These third parties will either act as independent datacontrollers from ECMWF regarding their own cookies (using the datathey collect for their own purposes and under terms defined by them) or asdata processors for ECMWF (processing personal data on ECMWF’s behalf).

For further information on how these third parties may use your information, please refer to their privacy policies:

  • Twitter

- First-party cookies present on the Website

In detail, the cookies present on the Website are as follows:


Technical nameData ControllerCookie type, function and purpose

Type of cookie


has_jsECMWFFunctional cookie to remember whether a visitor has javascript in his browserfirst party cookie/browsing cookieExpires at the end of the session
consent_3rdparties_cookiesECMWFCookie that records if the user accepted the 3rd parties cookiesfirst party cookie/browsing cookieExpires at the end of the session
consent_additional_cookiesECMWFCookie that records if the user accepted additional cookiesfirst party cookie/browsing cookieExpires at the end of the session

Google Analytics

Technical nameData ControllerCookie type, function and purpose

Type of cookie



Google Analytics cookie used to distinguish users.


third party cookie/cookie analytics2 Years

Google Analytics cookie that does not store any user information; it's just used to limit the number of requests that have to be made to doubleclick.net


third party cookie/cookie analytics60 seconds
_gidGoogleGoogle Analytics cookie used to distinguish users.third party cookie/cookie analytics24 hours


Technical nameData ControllerCookie type, function and purpose

Type of cookie


SSESSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxECMWFDrupal cookie that stores session identification.first party cookie/session cookies

200000 seconds

200000 seconds - ~23 days

Drupal.tableDrag.showWeightECMWFDrupal cookie that helps handle the consistent navigation of tabbed pages and forms across a range of different browsers.first party cookie/functional cookies1 Year

- Cookie settings

You can block or delete cookies used on the Website via your browser options. Your cookie preferences will be reset if different browsers are used to access the Website. For more information on how to set the preferences for cookies via your browser, please refer to the following instructions:

You may also provide set your preferences on third-party cookies by using online platforms such as AdChoice.

CAUTION If you block or delete technical and/or function cookies used by the Website, the Website may become impossible to browse, certain services or functions of the Website may become unavailable or other malfunctions may occur. In this case, you may have to modify or manually enter some information or preferences every time you visit the Website.

How can I express consent to the installation of Cookies?

In addition to what is indicated in this document, the User can manage the preferences for Cookies directly from within his browser and prevent - for example - that third parties can install them. Through the browser preferences it is also possible to delete the Cookies installed in the past, including the Cookie in which the consent to the installation of Cookies by this site is eventually saved. The User can find information on how to manage Cookies with some of the most popular browsers such as the following addresses: Google Chrome, Mozilla Firefox, Apple Safari e Microsoft Internet Explorer.

With reference to cookies installed by third parties, the User can also manage his own settings and revoke the consent by visiting the related opt out link (if available), using the tools described in the privacy policy of the third party or by contacting the same directly.

Without prejudice to the above, the User may use the information provided by Your Online Choices (UE), Network Advertising Initiative (USA) e Digital Advertising Alliance (USA), DAAC (Canada), DDAI (Japan) or other similar services. With these services it is possible to manage the tracking preferences of most advertising tools. The Data Controller therefore advises Users to use these resources in addition to the information provided in this document.