페이지 이력

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Science Demonstrator 3 addresses a common problem for ENVRIplus RIs (specifically observatories that build on environmental sensor networks) that data acquisition service, in particular, the preparation of data transfer prior to data transmission are often not yet sufficiently standardized. This hinders the operation of efficient cross-RI data processing routines, e.g., for data quality checking. The demonstrator showcases a service prototype that allows submitting and publishing raw observational (non-geophysical) environmental time series data in common standard formats (T-SOS XML and SSNO JSON). A messaging API (EGI ARGO) is used to perform Near Real Time (NRT) quality control procedures by an Apache Storm NRT QC Topology, which publishes the quality controlled and labelled data via a messaging output queue.

Science Demonstrator 4 describes the EuroArgo Data Subscription Service (DSS) that allows researchers to subscribe to customized views of Argo data, selecting specific regions and time-spans, and choose the frequency of updates. Tailored updates are then provided on schedule to researchers’ private storage. The demo showcases an integration solution that combines the EuroArgo community data portal with e-Infrastructure services (EUDAT B2SAFE, EGI FedCloud, etc.), and uses the DRIP service developed by T7.2 for optimised service deployment. The pilot activity was initiated by the marine research community, however, the possibility to receive regular transmissions of data, especially in near-real time, directly from the organisation responsible for data collection and (pre-)processing, is very important to many large initiatives. ENVRIplus RIs can benefit from the subscription services, e.g., to create more elaborated data products by requesting data from other sources, and can optimise their internal workflows by signing up for automatic updates.

Science Demonstrator 5 showcases a “sensor registry” that aims at supporting the management of sensors deployed for in-situ measurements. Common sensors or families of sensors are used across different research infrastructures, for example, oxygen optodes that are equipped on platforms in multiple research infrastructures. The goal of this work is to define common methods to access the sensor metadata in such cases. The sensor registry applies the design principle of data catalogue developed in WP8, and uses data technologies and standards from the OGC Sensor Web Enablement family including SensorML, Observations and Measurements (O&M), and Sensor Observation Service (SOS). It brings together a marine domain implementation of these standards (the Marine SWE profile) developed by several European projects demonstrating the viability for future sensor and observation activities. The service can be integrated to various types of platforms, deep-sea observatories (e.g., EMSO), marine gliders (e.g., EuroGOOS) as well as solid earth (e.g., EPOS) or atmosphere observations (e.g., ICOS). It can also be used to track usage of specific sensor models (e.g., CO2) across the RI ‘s observation networks.

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