Abstract. This paper describes the marine data available from the Marine Centre, part of the Sentinel-3 Payload Data Ground Segment, located at the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT). The Marine Centre together with the existing EUMETSAT facilities provides a centralised operational service for operational oceanography. These descriptions of the marine data are produced with a focus on a user service perspective. They include the scientific and operational feedback mechanisms on the performance of the services as well as practical information and user support mechanisms.
<p>EUMETSAT provides user support and training for all users of the Copernicus Marine Data Stream (CMDS). The CMDS refers to all the level 1 and level 2 marine data from sensors on the Sentinel-3 and Jason-3 satellites, including ocean colour, sea surface temperature, and surface topography data. Details on the products and processing methodologies are available through handbooks, product notices, and a number of services including a help desk, and online forum. The training service aims to support all users wishing to explore potential applications of the CMDS. The service is primarily based around the delivery of two week, blended courses with both an online and classroom component.&#160; The online component is hosted on a Moodle platform and uses a variety of prepared resources including short articles, videos, software installation, and basic software tutorials; supported by discussion forums, to prepare participants for the classroom phase. The classroom phase is focused on practical work, with no lectures given. Participants are led through examples of workflows using SNAP and Jupyter Notebooks/Python, and are then given one-on-one/small group trainer support to work for 3 days on personal projects that they defined during the online phase. These projects yield a diverse range of synergistic use cases of ocean remote sensing data for societally relevant applications The training service has also run a variety of collaborative courses with community led initiatives, and proposes to develop online courses and resources in response to community needs. Feedback and requests from the ocean remote sensing community are welcomed.</p><p>&#160;</p>
<p>EUMETSAT offers a vast and growing collection of earth observation data produced by over 35 years of operational meteorological satellites. New data products are produced 24/7x365 and consistency with previous satellites and other missions is ensured by intercalibration and reprocessing campaigns. The benefits for the geosciences community are readily apparent - a recent survey showed that EUMETSAT and its Satellite Application Facilities produce 26% of the Essential Climate Variable records identified by the Global Climate Observing System that can be observed from space.<br><br>With the advent of new core satellite programmes and many narrowly focused missions, the volume and complexity of the generated data products will increase significantly, making it unfeasible for traditional workflows, relying on accessing data holdings present on the user's premises, to fully exploit these observations.<br><br>Users can access EUMETSAT data via two service categories: &#8220;push&#8221; services, currently provided by EUMETCast Satellite and delivering data to users via satellite systems in near real-time, and &#8220;pull&#8221; services, currently provided by the Long Term Archive and by the EUMETSAT Visualisation Service (EUMETView). EUMETSAT is in the process of reshaping its data services portfolio by leveraging big data and cloud computing technologies. The new Data Services are being phased into operations during 2020 and address several challenges with using EUMETSAT's data: near real-time data access, accessing time series, viewing data, transforming it to make it compatible with downstream workflows, and processing data on the premises where they are stored.<br><br>EUMETSAT has established an on-premises hybrid cloud, in which new Data Services for online data access (Data Store), web map visualisations (View Service) and product format customisations (Data Tailor) are hosted. Additionally, our &#8220;push&#8221; services are extended, with the introduction of the EUMETCAST Terrestrial service.<br><br>The Data Store provides online access for directly downloading satellite data via a web-based user interface and APIs usable in processing chains. Users can download the data in its original format or customise it before download by invoking the Data Tailor Service. The View Service provides access via standard OGC Web Map, Web Coverage and Web Feature Services (WMS, WCS, WFS) which visualise data available in the Data Store. It is accessible via a web-based interface and APIs allowing the integration of visualisations in end-user applications. EUMETCast Terrestrial is an evolution of the EUMETCast Satellite system that relies on the network infrastructure provided by GEANT and its partners plus the Internet to deliver high volumes of data worldwide. EUMETCast Terrestrial is able to deliver data outside the EUMETCast Satellite footprint and to user communities large enough to benefit from a multicast service, but not large enough to justify a full satellite-based broadcast.<br><br>This presentation will showcase these new Data Services, which enable users to transition from traditional local data processing regimes to cloud-native research workflows. With the new Data Services, users can easily discover, explore, and tailor data products to their needs and thus shift the effort from data and infrastructure handling to domain-specific and scientific topics.</p>
<div> <p><span>Following the successes of the first phase of the European Commission Copernicus programme, EUMETSAT is continuing and expanding its offer of data access services, marine data products, as well as marine training activities and user support services, under phase two.</span><span>&#160;</span></p> </div><div> <p><span>EUMETSAT operates the Sentinel-3, Sentinel-6 and Jason-3 satellites, and provides level-1 and level-2 marine data products for ocean colour, sea surface temperature, and altimetry science and applications.&#160;</span><span>&#160;</span></p> </div><div> <p><span>User support services include data access, customisation, and visualisation platforms, web-based technical information about products, as well as a helpdesk available to answer a full range of user queries on the products and their use.</span><span>&#160;</span></p> </div><div> <p><span>Interactive training activities are designed to accommodate a diverse range of audiences, both research and operational, putting trainee needs and interests at the centre of learning objectives. A focus on co-development of resources and participant-led learning interventions allows participants to tailor their own experiences towards development of the skills and knowledge that will help them in their own applications and work tasks. Building on four years of successful general courses, EUMETSAT now seeks to develop further specialised training and advanced courses for the marine community. </span><span>&#160;</span></p> </div><div> <p><span>This presentation will showcase existing services and resources, and provide information on planned training events for 2022 and beyond. It will expand on our training approaches and provide further information on opportunities for collaboration with the wider marine community, during the UN ocean decade.</span><span>&#160;</span></p> </div>
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