Government

Australian Capital Territory Online Mapping Tool Incorporates DigitalGlobe Imagery

November 12, 2004
/ Print / Reprints /
ShareMore
/ Text Size+
Images add context and dimension to user's visualization experience.

DigitalGlobe, Longmont, Colo., announced that the Department of Urban Services in Canberra, Australia, uses QuickBird satellite imagery in its Internet mapping service, called Australian Capital Territory (ACT) Locate. The tool is used by urban planners, developers and resource managers for various mapping and spatial information applications pertaining to Canberra, Australia's capital.

The Department of Urban Services' Geographic Information Management Unit purchased QuickBird imagery from Sinclair Knight Merz, a DigitalGlobe business partner, for incorporation into ACT Locate. The interactive mapping interface allows visitors to the website (www.gim.act.gov.au/) to search for and locate map features; create customized maps that display user-specified layers of information; retrieve information of interest such as the classification of a road or heritage site; measure distances; undertake spatial analysis queries and print maps.

Displaying the most commonly used ground features, the maps are regularly updated with digital spatial data to reflect new or changing assets. The user simply selects an area of interest by either doing a "search and locate" by entering street address, land block details or place/feature name, or using the "create a map" feature to select and zoom into an area.

The user may opt for a QuickBird satellite image-based background upon which maps and spatial information are overlaid. Showing such features as sidewalks, individual trees and parking lot lines, the 60-centimeter resolution of the QuickBird images puts the maps' lines and polygons into context and adds a new dimension to the user's visualization experience.

The Australian government acquired DigitalGlobe QuickBird imagery over the ACT in 2002, and in 2004, the Department of Urban Services acquired a new set of images over the area. Both sets of images are available in ACT Locate to provide a unique and historical perspective.

Robert Twin, manager of the Geographic Information Management Unit, cited as an example the extensive bushfires that devastated parts of Canberra in January 2003. "Since we have detailed satellite imagery from 2002, and again from 2004, we are able to conduct valuable analyses of the landscape before and after the fires," he said.

According to Twin, a primary challenge in maintaining maps is the ability to keep the data current and promote its availability. "The use of digital data is crucial, because it means we can update the databases very rapidly and ensure users of the system that the information they are viewing is accurate." Twin said that the Department of Urban Services plans further acquisitions of DigitalGlobe imagery to complement its previous collections, as well as its large-scale aerial photography and lower resolution SPOT imagery.

All supporting ACT Government organizations may access and use the imagery. The public availability of the data reduces the duplication of effort caused by each business unit acquiring its own version of the data, and makes it useful for visualisation and detailed analysis for numerous applications related to land and resource management.

Sinclair Knight Merz orthorectified the QuickBird imagery to the Map Grid of Australia (MGA94) projection and produced imagery for each map scene. The satellite imagery is also available as a single mosaic that users can view as a background.

Source: DigitalGlobe, Nov. 8, 2004

Did you enjoy this article? Click here to subscribe to POB

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.

POB

POB October 2014 Cover

2014 October

In this October 2014 issue of POB, we explore cities across Europe pursuing new sustainable energy policies. Also, read how 3D laser scanning produces a winning topographic survey for a high school football field and running track.

Table Of Contents Subscribe

Webinars

How many webinars have you participated in over the past 12 months?
View Results Poll Archive

Point of Beginning Store

M:\General Shared\__AEC Store Katie Z\AEC Store\Images\POB\epubsite\Statues-pic-large.gif
Surveyor Statues

The perfect gift or award for any special occasion.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

STAY CONNECTED

Facebook logo Twitter logo  LinkedIn logo  YouTube logoRPLS small logo

Google +

Geo Locator

Buyers Guide

The #1 buyers' guide for land surveyors and geomatics professionals. Search listings for software and equipment manufacturers, equipment dealers and professional services. CLICK HERE to view GeoLocator.