Data Virtualisation in the Nerc Datagrid
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چکیده
Research in the earth sciences requires access to large and complex datasets. These data include in-situ and remote-sensed observations, and a variety of model output. Storage methods are as diverse as the data types and include numerous file formats and relational database systems. In practice, considerable effort is expended in data handling. Processing software choice is constrained by file format compatibility, and data object representations are coerced onto physical storage artefacts.
منابع مشابه
The NERC DataGrid services.
This short paper outlines the key components of the NERC DataGrid: a discovery service, a vocabulary service and a software stack deployed both centrally to provide a data discovery portal, and at data providers to provide local portals and data and metadata services.
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The Natural Environment Research Council (NERC) DataGrid (NDG) aims to provide a framework for the discovery and use of data needed in NERC research. To support this, the NDG has developed a metadata and data model. The data model is directly concerned with the representation and use of the data, with the metadata model covering the discovery and higher-level considerations. The metadata model ...
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NERC DataGrid (NDG) will provide discovery of and access to a range of environmental data. Here we describe the deployment of the Reference Model for Open Distributed Processing (RMODP) to architect NDG development. RM-ODP was adopted as a formal architecture methodology because of the close match between Grids and ODP system concepts. The process provides a number of views of the system being ...
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The NERC DataGrid (NDG) project has been investigating vocabularies describing measurements or model outputs for use in its ‘discovery’ and ‘use’ metadata schema. It has been recognised that the two types of metadata have significantly different requirements of this type of vocabulary and therefore that more than one vocabulary is required. Automated construction of metadata records from data h...
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