Paper:	Data Analysis in the LOFAR Long Term Archive
Volume:	461, Astronomical Data Analysis Software and Systems XXI
Page:	635
Authors:	Holties, H. A.; van Diepen, G.; van Dok, D.; Dijkstra, F.; Loose, M.; Renting, G. A.; Schrijvers, C.; Vriend, W.-J.
Abstract:	The LOFAR Long Term Archive (LTA) is a distributed information system that provides integrated services for data analysis as well as long term preservation of astronomical datasets and their provenance. The data analysis capabilities are provided by a federated system that integrates a central catalog and client user interfaces provided by Astro-Wise with processing pipelines running on Grid based and University HPC clusters. The framework used for data analysis ensures that proper authorization and access rules are applied and that generated data products are ingested into the storage part of the Long Term Archive. The ingest process includes information about data provenance. This paper presents the architecture of the processing framework of the LTA.

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