GSC Sentinel-2 PDGS OCD - Emits - ESA

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GSC Sentinel-2 PDGS OCD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-TN-09-0008 page 188 of 350 Largely based on the G-POD CAT-1 experience heritage summarised in sections 4.3.5.4 and 4.8.1.2, the following paragraphs describe the characteristics of the service in a stepwise approach as applicable to the service implementation of each option: ○ The characteristics of the initial processor integration service, as a prerequisite for enabling the required hosted processing for both hosted-processing models; ○ The characteristics of the on-demand processing scenario option, either to be sustained as final operation scenario or carried-out as a preliminary step towards the sustained processing scenario; ○ The characteristics of the systematic hosted-processing scenario 4.10.2.2.2.1 Processor Integration This service offering corresponds to the initial step of the collaboration enabling the third-party provided processor to be remotely operated within the PDGS environment. It provisions for: ○ The publishing and maintenance of documented integration guidelines (similar to [RD- 37]) with relevant technical documentation such as a well-defined Interface Control Document between the user-processor and the PDGS host environment; ○ The provision of a remotely accessible test-bedding environment for user processors coupled with test-data for compatibility testing and integration preparatory activities; ○ The effective integration and deployment of the user-processor into the PDGS environment according to the agreed processing model (on-demand, systematic). This includes the development of a user interface to be configured on the MMUS/ngEO web portal; ○ Support to the definition and integration of user-processors under the form of a helpdesk activated throughout this phase of the collaboration; 4.10.2.2.2.2 On-Demand Hosted-Processing Scenario Following processor integration activities, this operation scenario will be activated according to the agreed on-demand hosted-processing option or as a preliminary step to the systematic processing option. The user-provided processor will be available for remote-triggering on-demand from the userbase. For this, a user-interface to the processing will be provided allowing the authorised user to: ○ Define the processing jobs input parameters such as input data products and processing parameters; ○ Trigger the job processing and monitor its execution; ○ Retrieve the generated output and execution log files; ○ Define batch execution rules triggering the automated generation of products. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
GSC Sentinel-2 PDGS OCD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-TN-09-0008 page 189 of 350 The ability to trigger the hosted-processors is dedicated and private to each collaborative peer. Optionally, the collaborative peer may extend the accessibility to its processor and grant access to other parties by configuration. 4.10.2.2.2.3 Systematic Hosted-Processing Scenario Following successful validation activities performed under the on-demand processing scenario, this operation scenario may be agreed optionally. In this mode, the user-processor will be triggered automatically within the PDGS processing chain, generating the value-added products according to a well-defined configuration, and making them available for discovery and download through the Data-Access Service. This presupposes that: ○ The hosted processor can be triggered autonomously through the definition of systematic processing rules and default processing parameters; ○ The generated products can be inventoried and archived in the PDGS as any other core product. This constraint will impose the value-added products to comply with a well-defined standard model for product handling in the PDGS inherited from the core product model defined in [RD-07]. The on-line retention of the so generated value-added products will be configurable and typically span between a few weeks to several months. Whilst access to the value-added products will be dedicated and private to each collaborative peer, it may be extended to other parties by configuration. Service evolutions: A last level of collaboration is provisioned for to enable the sustained generation and publishing within the PDGS of third-party product collections as other GSC Sentinel-2 products through the Data-Access service. Eligibility to this enhanced level of collaboration and associated management will be dealt with on a case-by-case basis by the POM. This enhanced collaboration presupposes that: ○ The value-added dataset is complementary to existing ones, valuable for wide publishing via the GSC and was as such promoted for inclusion in the DAP. This imposes in particular that adequate licensing of the value-added products exists and comply fully to the Sentinel-2 data-policy in place; ○ The value-added products generated are adequately and publicly documented in semantics and format for publishing to third-parties and have been pre-validated according to an agreed qualification criteria; ○ The hosted processor is considered mature and operational and can operate autonomously in the PDGS with little required supervision overhead; ○ Assurance is provided that the hosted-processor software and associated documentation will be maintained in the long-term by the peer collaboration entity; ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
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[RD-33] Sentinel-2 MSI - Level 2A A
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LES LGS Land Equipped Sites Local G
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3.5.2 MULTI-SPECTRAL INSTRUMENT CHA
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Table 4-5 Radiometric image quality
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6 DETAILED OPERATIONS CONCEPTS GSC
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o Report generation frequency and c
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○ MSI L1A, L1B, L1C and TCI produ
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Some relevant use cases are present
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Two main mapping services have been
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The requirement on the cloud covera
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GSC Sentinel-2 PDGS OCD - Emits - ESA

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