Mathematics – Logic
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufm.u22a0005h&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #U22A-0005
Mathematics
Logic
9820 Techniques Applicable In Three Or More Fields
Scientific paper
Astronomy in the next twenty years will be powered by diverse new observing capabilities. Huge gains in instrument sensitivity covering a broad range of wavelengths for ground and space-based observatories promise abundant data for making unique discoveries, finding solutions to fundamental astrophysical problems, and expanding the frontiers of astrophysical knowledge. These anticipated advances in astronomy will also depend largely on new capabilities for archiving, accessing, analyzing, and using observational data. New concepts are also required for registering and making large volumes of distributed data easily available to a world community of astronomers. The concept of the virtual observatory (VO) anticipates an era of integrated data, information, and services managed in a distributed but cooperative infrastructure. Joining observatory data archives and catalogs into one uniform logical (i.e. virtual) entity with a rich variety of services for discovery, access, and analysis promises to revolutionize astronomy. A virtual astronomy archive, containing observational data gathered in the past, present and into the future, affords a new basis for the science community to "observe" the "sky" through shared digital data and information from desk top computers. New kinds of discoveries and studies become possible because collective observations that include objects cataloged in the entire sky can be indexed across spectrum, time, resolution, and space for instance. In this concept the archive becomes the sky that the community of astronomers accesses through new interface services. We explore the role of a metadata clearinghouse and order broker service in achieving the goals of a VO. We discuss various functional capabilities and operations of a clearinghouse based on extensive experience developing NASA's EOS Clearinghouse (ECHO). Reusable software components of ECHO can readily be applied to VO development. After presenting an examination of key requirements for developing a VO we identify which elements and capabilities of ECHO best support the VO vision.
Harberts R.
Roelofs L.
Wichmann Katarzyna
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