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Special Report 3Geoscientific Data Warehouse –accessing and delivering NSWgeoscience dataIn September 20 12, the Minerals Resources unit of NSWDepartment of T rade and Investment released its newGescientific Data Warehouse (GDW) on the internet. The GDWis the culmination of the COGENT II project (2008–2012) toidentify, validate, consolidate and store geoscientific datasets ofthe highest data integrity secured in perpetuity. This representedthe first step in fulfilling the vision of “providing on demandaccess to all validated (non-confidential) corporate geologicaldata stored by Mineral Resources from a single spatial-basedinterface”. The GDW provides access to geoscientific informationto attract investment for mineral and petroleum exploration anddevelopment and help inform land use decision-making, a majorrole of the Mineral Resources unit.The COGENT I project (1995–1999), funded by the NSWGovernment’s ‘Discovery 2000’ initiative, started the transfer ofdata to a central, secure environment. COGENT II is a majorproject of the continuing initiative now called ‘New Frontiers’,which continues the government program of pre-competitivegeophysical surveys, data compilation and delivery , frontiermapping and interpretation.The GDW is the delivery vehicle for data captured and storedin the geoscientific database application system. Now that thissystem is in place, users of the GDW will see a steady stream ofnew and updated datasets from nightly replication.How it worksThe GDW uses Google Earth technology to enrich the functionalityand experience of discovering geoscientific data in NSW .Integrating the 3D and layer transparency features of GoogleEarth with geo-referenced field photos and microphotographsprovides a ‘virtual field’ experience for the user. This experienceis shown in the figure that displays data in Google Earth alongwith simple queries within web pages.The geoscientific data held in the new database is primarilypoint data such as field observations, structural readings,geochronology and non-confidential data from explorationreporting. However, the GDW spatial interface also has layers forgeological and metallogenic maps and geophysical imagery(geolocated at all zoom levels), current mineral, coal andpetroleum titles as well as title applications for minerals, coaland petroleum. The GDW also contains a link to the newGeoscience Product Catalogue and to the DIGS database (ofexploration and geoscience reports and maps).For those who wish to bypass the spatial interface,comprehensive text-based search facilities are available, includinggeoscientific database data and reports as well as data and imagesstored in the DIGS database. These are all complemented by adownload facility that supports download in multiple formatsincluding shape files, TAB files and CSV.Maps for mobile devicesA new feature in November 2012 was the addition of a facilityto download free statewide geological maps and geophysicalimagery to smartphones and tablets. This is a one-off file downloadover an internet connection. However , the feature doesnot require an internet connection to display, therefore makingthese maps available in areas without internet reception. GPStechnology embedded in smartphones allows the user to instantlyview maps or imagery at their location. Maps used are NSW1:1 500 000 surface geology, total magnetic image and ternaryradioelement image. This facility has proven to be very popularand more maps will be made available for download on anongoing basis.AccessThe public GDW can be accessed at http://dwh.minerals.nsw.gov.au/CI/warehouse.The entry page has links to demonstration videos and feedbackforms.For maps for mobile devices go to http://dwh.minerals.nsw.gov.au/CI/warehouse/view/mobileapps.DataData migration was prioritised with respect to value and risk. Forexample, radiogenic isotopes were considered the highest prioritybecause of the cost of re-collecting and reanalysing samples,along with storage of records in multiple versions of spreadsheetson the computer network and on individual computers. Resourceswere allocated to compile, model and migrate data based on theirpriority. All data have been secured and there is a work plan forimplementing the data into the GDW . As a result of finiteresources, not all data have been implemented in the GDW atthis stage, as shown by the two tables accompanying this article.36 |<strong>TAG</strong> June 2013

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