Use of data accessed via this service

The datasets available via this service are provided freely for Research and Education purposes. Before retrieving data please read the conditions below and acknowledge that you accept them.

Terms of Use

• ECMWF retains all Intellectual Property Rights and copyright over its data.
• ECMWF must be acknowledged (attributed) as the source.
• ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.
• ECMWF makes no warranty as to the accuracy or completeness of its data products or  the uninterrupted provision of such data products. All data products are provided on an "as is" basis. Any warranty implied by statute or otherwise is hereby excluded to the fullest extent permissible by law.
• ECMWF shall not be liable should ECMWF discontinue the provision of its data products at any time.
• ECMWF shall have no liability in contract, tort or otherwise arising out of or in connection with these Terms of Use.
• Users must remove attribution if requested by ECMWF.
• These Terms of Use shall be governed by and construed in accordance with the laws  of England and Wales.
• The parties shall attempt to settle any dispute between them in relation these Terms of Use and any data licensed under these Terms of Use in an amicable manner. If the dispute cannot be so settled, it shall be finally settled under the Rules of Arbitration of the International Chamber of Commerce by one or three arbitrators appointed in accordance with the said rules; sitting in London, England. The proceedings shall be in the English language. In accordance with Sections 45 and 69 of the Arbitration Act 1996, the right of appeal by either party to the English courts on a question of law arising in the course of any arbitral proceedings or out of an award made in any arbitral proceedings is hereby agreed to be excluded.
• Nothing in these Terms of Use shall be construed as a waiver of any of the privileges and immunities conferred upon ECMWF by its Member States through its Convention and Protocol on Privileges and Immunities.
• Access to the data products and services may be unavailable, delayed or interrupted.
  ECMWF will make reasonable efforts to restore the access following the report of a problem, but ECMWF will not be liable for, any unavailability, delay or interruption in access.

Conditions of access for the ECMWF contribution to S2S: 

This data product is published under a Creative Commons Attribution Non-Commercial 4.0 International (CC BY NC 4.0). To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc/4.0/legalcode

You are free to:

• Share — copy and redistribute the material in any medium or format
• Adapt — remix, transform, and build upon the material.

Under the following terms:

• You must give appropriate credit (attribution) to ECMWF as outlined below, provide a link to the licence, and indicate if changes were made.
• Non-Commercial — You may not use the material for commercial purposes.
• No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

The following additional conditions apply: 

1. Research is understood as any project organised by a university, scientific institute or similar (private or institutional), for non-commercial research purposes only. A necessary condition for the recognition of non-commercial purposes is that all the results obtained are openly available at delivery costs only, without any delay linked to commercial objectives, and that the research itself is submitted for open publication.
2. Although every care has been taken in preparing and testing the data, ECMWF cannot guarantee that the data are correct in all circumstances; neither does ECMWF accept any liability whatsoever for any error or omission in the data, or for any loss or damage arising from its use.
3. The Licensee agrees to acknowledge the origin of the Products in any publication it produces via any means and arising out of the use of the Products by using the following wording: “This work is based on S2S data. S2S is a joint initiative of the World Weather Research Programme (WWRP) and the World Climate Research Programme (WCRP). The original S2S database is hosted at ECMWF as an extension of the TIGGE database”. The Licensee will provide the Licensor with a copy of such publication, upon request. For dataset source, please cite: Vitart et al.,The Sub-seasonal to Seasonal (S2S) Prediction Project Database. Bull. Amer. Meteor. Soc., 98(1), 163-176. doi: http://dx.doi.org/10.1175/BAMS-D-16-0017.1.
4. Any person extracting data from this server will accept responsibility for informing all data users of these conditions.

The following wording shall be attached to the use of this ECMWF data product, in addition to acknowledging S2S: 

• Copyright statement: Copyright "© [year] European Centre for Medium-Range Weather Forecasts (ECMWF)".
• Source https://apps.ecmwf.int/datasets/
• Licence Statement: This data is published under a Creative Commons Attribution Non-Commercial 4.0 International (CC BY NC 4.0). https://creativecommons.org/licenses/by-nc/4.0/legalcode
• Disclaimer: ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.
• Where applicable, an indication if the material has been modified and an indication of previous modifications.

The following wording shall be attached to the services created with this ECMWF data product, in addition to acknowledging S2S:

• Copyright statement: Copyright "This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF)".
• Source https://apps.ecmwf.int/datasets/
• Licence Statement: This ECMWF data is published under a Creative Commons Attribution Non-Commercial 4.0 International (CC BY NC 4.0). https://creativecommons.org/licenses/by-nc/4.0/legalcode
• Disclaimer: ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.
• Where applicable, an indication if the material has been modified and an indication of previous modifications

 

Conditions of access for the non-ECMWF contributions to the S2S dataset: 

 

 Words in the singular shall include the plural and vice versa and words used below shall mean:

• Products:The items of the Sub-seasonal To Seasonal (S2S) dataset.
• ECMWF:The European Centre For Medium-Range Weather Forecasts (ECMWF) whose principal place of business is at Shinfield Park, Reading, RG2 9AX, United Kingdom.
• Direct/Batch Access: Access to the ECMWF systems by means of an interactive client software which allows the Licensee to retrieve Products.
• Licensee:The person or the organisation he/she represents, whose details are contained in this registration form, authorised by the Licensor to use the Products.
• Licensor: ECMWF and its own licensors.
• Third Party Users: users who are authorised by the Licensee to access and use the Products subject to them registering at: http://apps.ecmwf.int/datasets/data/s2s/licence

Conditions

1. The Licensee is authorised to use on a non-exclusive basis the Products exclusively for non-commercial research and educational purposes.
2. A necessary condition for the recognition of non-commercial purposes is that all the results obtained are openly available at delivery costs only, without any delay linked to commercial objectives, and that the research itself is submitted for open publication.
3. Except as provided in Condition 5 hereinafter, the Licensee shall not reproduce, distribute, license, transfer, assign, sell, disclose or otherwise forward the Products, whether in their original form or as part of a service where the original numerical values of the Products can be accurately rebuilt from the service, to any third party, without the prior written consent of the Licensor.
4. The most complete and up-to-date version of the Products is hosted at ECMWF. ECMWF reserves the right, at its sole discretion, to change, modify, add, remove or otherwise alter the Products at any time without notice, to address quality issues affecting the Products or for any other purposes.
5. The Licensee is discouraged from distributing the Products to third parties because of the risk of misuse and of incomplete and out-of-date versions getting into circulation. However, if the Licensee does distribute the Products to third parties, the Licensee must:
   • require the Third Party User to register at http://apps.ecmwf.int/datasets/data/s2s/licence
   • restrict the Third Party User’s use of the Products to non-commercial research and education, as defined in these Licence Terms; and
   • inform the Third Party User about any processing to the Products (e.g. interpolation) applied by the Licensee since receiving them from the Licensor.
6. The Licensee shall notify the Licensor if it becomes aware of any unauthorised use of the Products including by Third Party Users. If the Licensee becomes aware of any Third Party User breaching these Licence Terms, the Licensee shall terminate immediately such Third Party User’s access to the Products.
7. Supply by the Licensee of the Products in breach of this Licence Terms including supply to Third Party Users who then make unauthorised use of the Products shall be considered as a default of the Licensee and shall render the Licensee liable vis-à-vis the Licensor and shall lead, in particular, to the application of Condition 12 hereinafter.
8. All Intellectual Property Rights of the Products owned by ECMWF or its licensors shall remain the property of ECMWF or its licensors and the Licensee acknowledges the full title and ownership by ECMWF or its licensors of all the Products supplied.
9. The Licensee agrees to acknowledge the origin of the Products in any publication it produces via any means and arising out of the use of the Products by using the following wording: “This work is based on S2S data. S2S is a joint initiative of the World Weather Research Programme (WWRP) and the World Climate Research Programme (WCRP). The original S2S database is hosted at ECMWF as an extension of the TIGGE database”. The Licensee will provide the Licensor with a copy of such publication, upon request. For dataset source, please cite: Vitart et al.,The Sub-seasonal to Seasonal (S2S) Prediction Project Database. Bull. Amer. Meteor. Soc., 98(1), 163-176. doi: http://dx.doi.org/10.1175/BAMS-D-16-0017.1.
10. The Licensor makes no warranty as to the accuracy or completeness of the Products. All Products are provided on an "as is" basis. Any warranty implied by statute or otherwise is hereby excluded from this agreement to the fullest extent permissible by law.
11. Neither party shall be liable to the other under any cause of action for any loss of profit or loss of revenue (whether direct or indirect); any indirect loss; loss of goodwill, reputation or opportunity; or any loss of or corruption of data however so arising out of or in connection with this agreement whether or not that party had been informed of or was aware that there was a serious possibility of such loss.
12. The Licensor may terminate this Licence if the Licensee fails to remedy any breach of its obligations under this agreement within 30 days of notice from the Licensor, requesting the Licensee to remedy such breach.
13. The Licensor reserves the right, at its sole discretion, to change, modify, add, remove or otherwise alter this agreement at any time without notice. 

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