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Many sensor networks have been deployed to monitor Earth's environment, and more will follow in the future. Environmental sensors have improved continuously by becoming smaller, cheaper, and more intelligent. Due to the large number of sensor manufacturers and differing accompanying protocols, integrating diverse sensors into observation systems is not(More)
In recent years, the standards of OGC's Sensor Web Enablement (SWE) initiative have been applied in a multitude of projects to encapsulate heterogeneous geosensors for web-based discovery, tasking and access. Currently, SWE services and the different types of geosensors are integrated manually due to a conceptual gap between these two layers. Pair-wise(More)
The Sensor Web Enablement (SWE) initiative of the Open Geospatial Consortium (OGC) defines standards for Web Service interfaces and data encodings usable as building blocks to implement a Sensor Web for geospatial applications. These standards encapsulate heterogeneous sensors installed in existing sensor networks for web-based discovery, scheduling and(More)
The importance of near real-time access to environmental data has steadily increased over the last years. In this article, the European Environment Agency (EEA), which receives environmental data from a large number of providers, is in focus. The heterogeneous data formats and data transfer mechanisms make the data collection and integration a difficult(More)
Human observations have the potential to significantly improve the actuality and completeness of data about phenomena such as noise distribution in urban environments. The Human Sensor Web aims at providing approaches for creating and sharing human observations as well as sensor observations on the Web. One challenge is the integration of these observations(More)
Enabling the integration of information provided by OGC Web Processing Services into geospatial mass-market applications is promising, as it increases the availability of information for most ordinary users. This information will be most likely based on the latest available data (e.g. collected by sensors) and can thereby support the user in(More)
Recent technological advancements have led to the production of arrays of miniaturized sensors, often embedded in existing multitasking devices (e.g., smartphones, tablets) and using a wide range of radio standards (e.g., Bluetooth, Wi-Fi, 4G cellular networks). Altogether, these technological evolutions coupled with the diffusion of ubiquitous Internet(More)