The RADARSAT satellite was developed by the Canadian Space Agency (CSA) and was launched on 4 November 1995. It has a C-band, Synthetic Aperture Radar (SAR) sensor on board. The SAR is an active microwave sensor capable of imaging earth resource targets regardless of time of day, cloud, haze or smoke cover of an area. The instrument is classified "active" as it emits the energy necessary to image the earth's surface. In contrast, "passive" or "optical" sensors rely on the sun's reflected energy to image the earth. This sensor can operate in a variety of imaging modes to suit a range of applications. Depending on the beam mode, the SAR ground swath widith varies between 50 and 500 kilometres, and the pixel resolution varies between 10 and 100 metres. The sensor has HH polarisation. ACRES Radarsat archive consists of extensive coverage from August 1997 to late 1999. ACRES currently do not have an agreement with RSI but can acquire data if downlink is granted by RSI.

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.

Earth Observation -1 (EO-1) satellite was launched in November 2000 to demonstrate new technologies such as Hyperion (hyperspectral data containing 220 bands) and Advanced Land Imager (ALI) sensor. ACRES downlinks EO-1 data for USGS through an informal arrangement with NASA but there is no local archive or catalogue. However, ACRES distributes EO-1 products imported from US through a special arrangement with the United States Geological Survey (USGS). This special arrangement permits ACRES customers to receive unlimited acquisitions over their area of interest until it is successfully acquired with <25% cloud cover.

Includes copy of AGSO Record 1997/20

SPOTMaps are seamles, uniform, orthorectified territorial coverages produced with 2.5 metre colour imagery acquired by the SPOT 5 satellite. Spectral mode: Colour (3 bands) Location accuracy: 10 to 15 metres RMS, depending on the country Preprocessing level: Ortho (DEM used: Reference 3D or SRTM DTED-1 according to availability) Projection: UTM WGS 84 Format: GeoTiff

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Includes copy of AGSO Record 1997/20

Includes copy of AGSO Record 1997/20

Includes copy of AGSO Record 1997/20

This collection contains processing environments for use by external users of the Australian Geoscience Data Cube (AGDC).