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Auflistung nach Autor:in "Thomas, Claire"

1 - 4 von 4
  • Konferenzbeitrag
    An OGC Web Processing Service for assessing the quality of solar radiation measurements
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Espinar, Bella; Gschwind, Benoit; Wald, Lucien; Thomas, Claire
    A service is presented that assesses the quality of measurements of daily global irradiation or means of global irradiance acquired by a ground station. Measurements are checked against models resulting in a measure of plausibility. This on-line service obeys the WPS (Web Processing Service) standard of the Open Geospatial Consortium. It is free of use and can be integrated into routine operations and Web portals thanks due its interoperability capability.
  • Konferenzbeitrag
    Benefits and Limits of OGC-Web Services to the new SoDa Service on Solar Energy
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Thomas, Claire; Saboret, Laurent; Wey, Etienne; Wald, Lucien
    The SoDa Service (website: www.soda-is.com) is providing an easy and standardized access to valuable information related to solar energy for professionals. Several providers offer via the SoDa Service an access to for-free and forpay Web services and off-line services delivering data on solar radiation, atmospheric optics, position of the sun and many others. Since the launch of the Service in 2003, the SoDa team is making efforts to improve the quality of the service to customers. After the duplication of the whole system in 2010 for a better reliability, and the development of a more esthetic website in summer 2012, the team is now populating the new SoDa Service with new Web services. This is a perfect opportunity to explore different standards in order to increase the dissemination and acceptation of the existing and new services by the community of users. After several trials, the Open Geospatial Consortium (OGC) standards were selected. This communication discusses the OGC-compliant Web services and how the decision for developments within the new SoDa website was taken.
  • Konferenzbeitrag
    Early achievements towards an automatic assessment of the uncertainty in solar irradiation using web services
    (Innovations in Sharing Environmental Observations and Information, 2011) Wald, Lucien; Blanc, Philippe; Espinar, Bella; Gschwind, Benoit; Lefevre, Mireille; Menard, Lionel; Wald, Fabien; Hoyer-Klick, Carsten; Schroedter-Homscheidt, Marion; Thomas, Claire
    A long standing effort aims at creating and operating an automatic procedure for the assessment of the uncertainty in solar radiation data and the delivery of this information to users. This communication presents the early achievements. The overall objective can be seen as composed of three specific objectives: 1) assessing the uncertainty of the satellite-derived irradiation compared to a reference; 2) as the uncertainty depends on atmospheric conditions, devising a model that can predict uncertainty at any location and any time; 3) delivering information to users. As irradiation data are already delivered through the SoDa Service and the IEA SHC#36 / MESOR portal, it is natural to use these dissemination media and to embed the uncertainty quantities in the data flow. The strategy is to implement the overall procedure by the means of interoperable Web services. Two ensembles of Web services are being developed: one for the assessment protocol, the other for the model of uncertainty.
  • Konferenzbeitrag
    The project ENDORSE: exploiting EO data to develop pre-market services in renewable energy
    (Innovations in Sharing Environmental Observations and Information, 2011) Wald, Lucien; Thomas, Claire; Cousin, Sophie; Blanc, Philippe; Ménard, Lionel; Schroedter-Homscheidt, Marion; Gaboardi, Elena; Simeone, Emilio; Heilscher, Gerd; Jacques, Sophie; Serpico, Sebastiano; Huld, Thomas; Dumortier, Dominique
    The ENDORSE project is co-funded by the FP7 programme of the European Commission, from 2011 to 2013. It exploits the atmosphere service MACC of the European GMES programme (Global Monitoring for Environment and Security) together with other Earth Observation (EO) data and modelling. It aims at providing public authorities and private investors with accurate evaluation and forecasts of renewable resources. The focus is on the development of downstream services that create added-value information. We present here the achievements of the first period. A very accurate though fast algorithm describing the position of the sun in the sky has been developed. A series of recommendations for quality control of meteorological data have been issued. All algorithms are available as code sources and are being implemented as Web processing services (WPS). Support vector machine techniques prove successful to map the air temperature at 2-m height from satellite images and a few measurements at ground level. The next development of ENDORSE is a portfolio of pre-market downstream services, serving as precursors and examples of best practices for similar services. The resulting services will be described using the INSPIRE metadata and declared in an existing Catalog Service for the Web (CSW) dedicated to energy. Finally, we discuss the mutual benefits between GEOSS (Global Earth Observation System of Systems) and ENDORSE.