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  • SPOT5 satellite imagery captured between 17/07/2005 and 22/09/2006 over the South East Queensland Catchments. 50 SPOT5 single scenes comprising of 2.5m Panchromatic, 10m XI 4band multi-spectral and 2.5m fused XI 4band multi-spectral images. Mosaics comprising of a 10m pseudo natural colour ECW image clipped to the catchments extent and 2.5m pseudo natural colour ECW images clipped to 250k map sheet boundaries.

  • ADMAP is a Gridmerged compilation of over 700 individual survey TMI grids, with a cell size of approximately 80 m (in fact it is 0.00833333 degrees). The first preliminary grid at this resolution with data type IEEE4ByteReal has been further processed in the Fourier domain to produce a one vertical derivative grid, called "aust_18122007_008333_vd1.ers"

  • Includes copy of AGSO Record 1997/20

  • Switched off at the request of Karen Fearn. Gallery no longer maintained or supported. This satellite image gallery shows the expansion of Australia's major towns and cities in every State and Territory since the 1980's. Residential expansion, new infrastructure (such as freeways), and changes in environmental features including reservoirs and dams can all be seen through comparison 'swipe' imagery.

  • The Landsat series of satellites commenced acquiring remotely sensed data with the launch of Landsat 1 in 1972. Landsat satellites travel at an altitude of 705 kilometres and provide coverage of the entire globe every 16 days. Landsat 7, launched on 15 April 1999, carries the Enhanced Thematic Mapper Plus (ETM+). As the name suggests, the ETM+ sensor is similar to the TM sensor but has some added features. It provides imagery in the same seven spectral bands as the TM sensor with 30 metre resolution, but has an added panchromatic band with 15 metre pixel resolution. ETM+ also has an enhanced thermal band with a 60 metre resolution. Its ground swath is 185 kilometres. A full scene is approximately 184 kilometres by 172 kilometres. The archive of ACRES products includes ETM+ data from 6 July 1999 onwards.

  • The Disaster Monitoring Constellation (DMC) is a constellation of satellites (presently eight) owned by various countries; operating together to provide frequent observations of the Earth for monitoring natural disasters. The DMC satellites operate in the visible to near-infra-red part of the spectrum, which makes them very useful for crop and forest monitoring as well as general earth observation. DMC satellites have been used in emergency response in Australia, providing daily images of the progress of floods through Queensland and New South Wales during the February 2012 flood event. DMC imagery is also used to augment data acquired from the Landsat series of satellites. The DMC SLIM-6-22 sensor has a slightly higher spatial resolution of 22 metres and a higher revisit rate of four days; compared to Landsat 5 TM sensor with a spatial resolution of 30 metres and a revisit rate of 16 days. In addition the dual sensor layout on the satellites allows a 620 kilometre wide swath to be acquired in a single pass. DMC satellites have three spectral bands: green, red and near infra-red; where seven bands are available from Landsat 5 TM data. Comparisons of the current generation of DMC satellites with Landsat-7 ETM+ have demonstrated that the calibration accuracy is within 1 - 3%. To maintain the calibration the DMC satellites are routinely cross-calibrated with Landsat-7 ETM+. Landsat-5 was a key source of imagery throughout the world; until the acquisitions of imagery was suspended in 2011. To address the shortfall in access to medium resolution data, Geoscience Australia has acquired large regional coverage of DMC data from DMC Imaging International (DMCii). This acquisition will help to address monitoring needs until Landsat-8 imagery is available in mid-2013.

  • Includes copy of AGSO Record 1997/20

  • SPOT 1, launched in 1986 by the French Government agency, Centre National d'Etudes Spatiales, carries two High Resolution Visible (HRV) sensors. Two SPOT satellites (SPOT 2 & 3) currently orbit the earth 180 degrees apart with SPOT 2 being the nominally operational satellite but data from SPOT 3 can be acquired on request. Each HRV has a ground swath 60 kilometres wide, and can operate independently either in panchromatic (PAN) or multispectral (XS) mode. SPOT 3 carries the only operational onboard tape recorders which store imagery when the sensors are operating outside the reception area of a ground station, allowing worldwide coverage by SPOT. Every 26 days, SPOT's orbit can provide total coverage of the Earth's surface, in a vertical viewing mode. Additionally, SPOT has the ability to image up to an angle of 27 degrees east or west of vertical. This can allow revisits of the same site in Australia in as little as three days, and also allows for stereo images to be acquired for use in determining the height of ground features. The archive of ACRES products includes SPOT data from 1989 onwards. The 10-metre resolution of SPOT's one-band panchromatic (PAN) sensor provides digital imagery in the highest resolution currently available from commercial satellite systems. ACRES SPOT archive contains selected imagery from the following SPOT satellites: - SPOT 1 commenced 1 January 1990, ceased January 1991. - SPOT 2 commenced 1 January 1991, continuing. - SPOT 3 selected from 25 September 1993.

  • Geoscience Australia, ACRES distribute Landsat Multispectral Scanner (MSS), Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data for a series of epochs or time frames covering Australia. The first epoch is 1972. These data have been produced and provided by the Australian Greenhouse Office (AGO). AGO use the data in their National Carbon Accounting System for monitoring land clearing and revegetation. This data is only available through ACRES and ACRES Landsat Distributors, and not through the AGO. More information is available at <a href="http://www.ga.gov.au/acres/prod_ser/agosuite.jsp">http://www.ga.gov.au/acres/prod_ser/agosuite.jsp</a> This data is available in 1:1M tiles or as a full continental Mosaic. Tiles areas are available at: <a href="http://www.ga.gov.au/acres/prod_ser/agotilemap.jsp">http://www.ga.gov.au/acres/prod_ser/agotilemap.jsp</a>