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Mercury – A Virtual Internet Database

Mercury is a service-oriented web-based system by NASA for finding and retrieving biogeochemical, ecological, and other land-based data. It offers distributed metadata management, simple and advanced searching, a single portal for diverse data, and supports various services and standards. The system includes two models, the Virtual Internet Database and the Virtual Aggregate Database, facilitating easy access and organization of data from various sources. Principal investigators can create detailed metadata, and users can remotely query the index and download data directly. Mercury features a simple and advanced search, supports semantic web integration, and seamless data ordering and integration with external tools.

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Mercury – A Virtual Internet Database

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  1. National Aeronautics and Space Administration Mercury – A Service Oriented Web-based system for finding and retrieving Biogeochemical, Ecological and other land-based data www.nasa.gov

  2. What is Mercury • Distributed metadata management, data discovery, and access system • Single portal to information contained in a separate data management systems • Simple full text searching • Advanced search with spatial, temporal and parameter specifications • Service oriented architecture that supports Thesaurus, Gazetteer, RSS, geo-RSS, and portlets • Based on a combination of open source and ORNL developed software • Standards based – XML, FGDC, Z39.50, Dublin-Core, Darwin-Core, GCMD, EML and ISO19115 Tammy Walker Beaty

  3. Two Mercury Models • The Virtual Internet Database • Organizes a new collection of data from informal systems spread across the Internet • The Virtual Aggregate Database • Harvests information from existing formal separate DBMS • Many hybrids Tammy Walker Beaty

  4. P.I. Name Product Number Product Title Site Subject Area Thematic Area Keywords etc. Index Mercury – A Virtual Internet Database 1. Principal investigators create detailed metadata and data files using local applications or ORNL- OME 2. Mercury collects metadata from contributing agencies’ servers distributed around the world and builds a centralized index 5. Remoteusers select links to data of interest 6. Highly detailed data and documentation are downloaded directly from the contributing agency 3. Remote users query the index via a Web-based browser Users P.I. Summary – Olson J. S Global Organic Soil Carbon Project: Soil Collections Status: Completed Download Data Set: http://daac.ornl.gov/cgi- bin/cart/order.pl?ds_id=221 4. Metadata summaries are returned to the remote users, including links back to detailed information and data at the PIs’ server or data repository Tammy Walker Beaty

  5. Mercury Features • ORNL DAAC – Simple Search & Advanced Search • Flexible architecture - can handle multiple search services, scalable, easily extendable • Rich Client Interfaces • Filtering, dynamics sorting, and book marking of search results • SOAP (Simple Object Access Protocol) based design supports Web and RSS services and Portlets • Ability to provide the harvested metadata to other applications (e.g.., Google, GCMD, GeoOneStop, NBII Biobot) • Semantic web integration support (thesaurus service) • Seamless data ordering/data extraction functionalities • Seamless integration with external data visualization tools • User Statistics Collection Tammy Walker Beaty

  6. ORNL DAAC Mercury Instances • Search Technology using popular open source tools • More than 8000 searchable metadata records • ORNL DAAC Archived Data • Regional and Global Data • Land Validation Data • LTER Data (Long Term Ecological Research) • Organization of Biological Field Stations Tammy Walker Beaty

  7. Simple Mercury Search • http://mercdev3.ornl.gov/ornldaac3/index.jsp?tab=simple • http://daac.ornl.gov Tammy Walker Beaty

  8. Advanced Mercury Search • http://mercdev3.ornl.gov/ornldaac3/index.jsp?tab=advanced Tammy Walker Beaty

  9. Mercury Home Page • http://mercury.ornl.gov • Detailed information about Mercury and Mercury Projects • Access to Metadata Editors Tammy Walker Beaty

  10. SignOffPage Tammy Walker Beaty

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