Treffer: MELOA Catalogue and GeoPortal: A modern approach for open access and visualization of in situ drifter data

The MELOA H2020 project proposes to develop a low-cost, easy-to-handle, wave resilient, multi-purpose, multi-sensor, extra light surface drifter for use in all water environments: The WAVY drifters. The data products generated by the MELOA project are openly accessible through standard-based Catalogue and Geoportal to promote the availability of the data to other communities such as GEOSS or Copernicus. MELOA will provide an effective way to monitor surface currents and surface dynamic features and temperature at different levels. A complete Software Ecosystem is developed in MELOA to manage the transmission of data from the WAVY drifters, raw files collection, campaigns operation and data curation and consolidation of data products to make the data openly accessible through the Catalogue and Geoportal. Driven by FAIR (findable, accessible, interoperable and re-usable) data principles and state-of-the-art data visualization technologies, the following components are described: 1) A Data Catalogue to make WAVYs data and metadata accessible in standard formats such as Comma-separated values (CSV), Observations & Measurements (O&M), Data Catalogue Vocabulary (DCAT); allowing interoperability with other Earth Observation (EO) catalogues. 2) A Data Geoportal, exposing interoperable Web Services such as Open Geospatial Consortium’s (OGC) Web Feature Service and OGC’s Sensor Web Enablement (SWE) services and effective data visualization taking advantage of Vector Tiles technology. ; This work was supported by the project MELOA from the European Commission’s Horizon 2020 research and Innovation program under Grant Agreement N°. 776280. This work uses the EGI research infrastructure with dedicated support for MELOA. ; Peer Reviewed ; Postprint (published version)