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“Big Data” in the geo domain typically are represented by spatio-temporal sensor, image, simulation, and statistics data. The OGC coverage concept represents a unifying model for an informationally complete description of such data, based on which the OGC Web Coverage Service (WCS), as OGC's “Big Data” standard, provides versatile, functionality. Large and growing tool support as well as the massive...
The data deluge we face does not only overwhelm us with sheer data volume, but also with an increasing variety of multi-dimensional datasets. As is more and more accepted, spatio-temporal data sets often can be represented through a common unifying paradigm, namely datacubes. In this contribution, we present datacubes as a common modeling paradigm upon which flexible, scalable services can be offered...
This contribution introduces the forthcoming extension of the ISO SQL standard for multi-dimensional arrays, SQL/MDA. We present concepts, the language, and highlight how it can be implemented in a scalable manner. Examples used stem from Earth Observation and related domains.
The global Earth Science Systems (ESS) cooperation requires both flexible and interoperable Web Service support built on large varieties of Earth Observation archives. Given the complexity and dynamics of each observation and the large number of disciplines involved, Open GIS Consortium (OGC) proposed a modular standardization approach to facilitate ESS data retrieval and analytics. Its latest Web...
Geospatial Raster Services provide access to manifold and large assets of geo information in earth system sciences, such as solar, atmosphere, cryosphere, oceans, solid earth, and biosphere research. Conformance testing of such services increases confidence in credibility of their results, something essential for collaborative science. In this paper we propose to test geo services against reference...
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