2004 UC Proceedings Abstract
 Managing the AGD to GDA Datum Change in Australian Business Track: GIS Organization and Management Author(s): Hayden Foley This paper describes required policy, systems and processes needed to internally manage the ongoing business risks imposed by Australia's national datum change. Hydro Tasmania, has adopted a phased introduction of the Geocentric Datum of Australia (GDA). GDA is Australia's new national mapping and coordinate system and replaces the Australian Geodetic Datum (AGD). Addressing the findings of an internal spatial data audit, the business has developed an AGD to GDA implementation strategy supported by a 30-point action plan. The action plan seeks to ultimately achieve full datum compliance whilst managing the ongoing business risks imposed by a datum change that will result in every map coordinate changing by approximately 200 meters. Central to implementing the action plan has been the creation of a GIS System that can handle a dual coordinate system environment and impose strict datum quarantine on individual Hydro Tasmania projects and thus provide confidence in spatially related decisions. Hayden Foley Hydro Tasmania Survey&GIS Services Level 2, 38 Montpelier Retreat, Knopwood House Battery Point , Tasmania 7004 AU Phone: 61 (03) 62304512 Fax: 61(03) 62241518 E-mail: hayden.foley@hydro.com.au |
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