Virtualization and Federation of Multiple Real-time Observatories Through the ROADNet Point of Presence

Recent progress on the Antelope interfaces to the Storage Resource Broker and on the deployable ROADNet Point Of Presence ("RPOP") has allowed three real-time observatories to be federated for virtual access to ROADNet image and meteorological data, coastal ocean current-monitoring data, and hundreds of gigabytes of USArray seismic data. The new Antelope-SRB Strdisp utility allows interactive review of waveform data from these data sources, with observatory-grade tools, on any computer with internet access, sufficient bandwidth, and system authentication. Similarly, the new Antelope-SRB Strexcerpt utility allows arbitrary subset databases of waveform data to be extracted, via simple or complex queries, and downloaded to the researcher's machine in any of approximately 20 user-specifiable formats. Key parts of the Antelope interface for PHP have been extended to the Antelope-SRB interface, providing web-scriptable world-wide-web access to these datasets. Similarly, key parts of the Antelope Toolbox for Matlab have been ported to the Antelope-SRB interface, making these large, federated data sets accessible to researchers for custom interactive exploration and processing based on their individual research needs. We end by discussing ongoing work on generalized remote database exploration and analysis tools for Antelope-SRB virtualized data sets. We also discuss the Antelope-SRB ORB (Virtual-ORB) interfaces in the RPOP cyberinfrastructure node.