The Copernicus Space Component (CSC) Ground Segment data dissemination implements the Copernicus Data Policy, and is based on an evolutionary approach to further enhance the data exploitation by the broad user community

The CSC data dissemination features:

• dedicated data access infrastructures, tailored to the needs of a predefined set of use typologies (i.e. Copernicus Services, National Member States, International Agreements, Scientific/Other use)
• a User Service Charter.

Four data access infrastructures typologies are available to users:

• Data access infrastructure for Copernicus Core users (CSC Data Access), providing access with committed performances. All Sentinels core products will be accessible within their specified timeliness. Furthermore access to Copernicus Contributing Missions data will be available according to the provisions of the DAP and the CSCDA Terms and Conditions. The access to the infrastructure will be via the user available bandwidth to the CSC WAN network backbone, this latter with committed reliability and performance. User registration will be based on a user request, verified according to the relevant eligibility criteria as defined by the European Commission in the Data Warehouse document.

• Data access infrastructure for National Member States (Collaborative Data Hub), providing access with target performances. A rolling on-line archive covering the last month(s) of Sentinels core products, available within their specific timeliness, will be accessible. Furthermore, access to off-line archived data will be available on-request. The access to the infrastructure will be via the user available bandwidth to a dedicated dissemination bandwidth, this latter with committed reliability and performance. User registration will be based on a user account pre-registration, with a dedicated single account per requesting Member State.

• Data access infrastructure for International Agreements (International Agreements Data Hub), providing access with target performances. A rolling on-line archive covering the last month(s) of Sentinels core products, available within their specific timeliness, will be accessible. Furthermore, access to off-line archived data will be available on-request. The access to the infrastructure will be via the user available bandwidth to a dedicated dissemination bandwidth, this latter with committed reliability and performance. User registration will be based on a user account pre-registration, with a dedicated single account per Agreement.

• Data access infrastructure for Scientific/Other use providing access for research, commercial, outreach use and the general public. A rolling on-line archive covering the last month(s) of selected Sentinels core products will be accessible. The access to the infrastructure will be via the user available bandwidth to a dedicated dissemination bandwidth. The data access will be configured to avoid resources saturation resulting from massive downloads by a limited number of users (e.g. maximum number of parallel downloads, maximum volume per retrieval,…). User account creation will be based on user self-registration.

The CSC Ground Segment provides a set of main user services  (i.e. User Service Charter), available independently from the data access infrastructure, featuring;

• User registration and management service;
• Sentinels core products Discovery, View and Download services;
• Emergency service, restricted to specific users;
• Dataset generation service, featuring generation of geographical/temporal data collections according to pre-defined areas of interest and/or applications;
• User HelpDesk service;
• Research and Support service;
• Hosted processing service.