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Sun Earth Connection Distributed Data Services
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| The goal of the work proposed herein is to integrate a number of current IT efforts into a suite of data services designed to facilitate the access to and use of data for Sun Earth Connection studies. The collection of services to be developed is based on the OPeNDAP Data Access Protocol (DAP), a protocol in heavy use in the Earth sciences. Although these services will be developed for Sun Earth Connection studies, we anticipate that they will be of use to other areas in the sciences as well. Specifically, we will make use of some of these enhancements in ongoing data system work in oceanography; i.e., this project will leverage work done in the Earth sciences to benefit space physics and the work done to benefit space physics will feed back to the Earth sciences. General Web services to be developed or enhanced as part of this effort: - High bandwidth data access - OPeNDAP-g, a Grid-enabled version of OPeNDAP, will be re-integrated into the OPeNDAP core such that all OPeNDAP core services are Grid accessible. - Catalog access integrated with content-based access - A hierarchical cataloging capability being developed at UCAR will be integrated into the OPeNDAP core, greatly facilitating access to large multi-file data sets. - Metadata services - The ability to augment data set descriptions at a central site for remotely accessible data sets will be enhanced to allow for the addition of variables and for data object type modification. This will make it possible to provide consistent, 'complete' descriptions of data sets of interest without requiring that the metadata at the data provider's site be modified. Specialized capabilities to be developed for Sun Earth Connections science: - Metadata - Data set descriptions will be completed for Sun Earth Connections data sets of broad interest to the community and made accessible via an OPeNDAP Ancillary Information Services server at HAO. - Data servers - An SPDML-OPeNDAP server will be written. This will provide a base for the metadata descriptions to be used in the project while at the same time greatly facilitating the provision of project related data via OPeNDAP. - Application clients - The IDL-OPeNDAP client will be rewritten to work on a broader range of CPUs and specialized IDL scripts to further facilitate access and use of key data sets will be developed. - Data server installation - OPeNDAP data servers will be installed at several sites for a targeted suite of Sun Earth Connections data sets. |
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