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  • This document defines the Computer Compatible Tape (CCT) format for raw, quicklook, bulk-corrected (georeferenced) system-corrected and precision processed Landsat Thematic Mapper (TM) imagery data acquired from the Landsat 4, Landsat 5 and subsequent satellites.

  • The product SAR.PRI is a digital image generated from raw SAR data using up-to-date auxiliary parameters, corrected for antenna elevation gain and range spreading loss. The image, projected on ground range, covers an area 75km wide and at least 75 km long. The JERS SAR.PRI format is based on the general definition of the SAR CEOS format (ref. ER-IS-EPO-GS-5902).

  • Geoscience Australia (GA) is distributing Landsat MSS, TM and ETM+ data for 15 epochs or time frames ranging from 1972 to 2006 covering Australia. This data has been provided by the Department of Climate Change formerly known as the Australian Greenhouse Office (AGO). This data is only available through GA and our Landsat distributors, and not through the Department of Climate Change. Epoch formats Epochs are available as 1:1M tiles or as a Continental mosaic in the following formats: Tiles Epoch Projection Bands File Format All MGA94 All bands except Band 6 (thermal) ERS/BIL 2004, 2005 & 2006 Geographic All bands except Band 6 (thermal) ERS/BIL Pre 2004 Geographic Bands 543 for TM & ETM+ and all bands for MSS ERS/BIL 2002 MGA94 Panchromatic only ERS/BIL 2002 Geographic Panchromatic only ERS/BIL Continental mosaics Epoch Projection Bands File Format All Geographic 543/RGB bands for TM, ETM+ and MSS ECW 2002 Panchromatic Sharpened Geographic Bands 543 plus Panchromatic band ECW File sizes and media File sizes of the data are significant Epoch Minimum Date Maximum Date Tile data - ERS/BIL Continental mosaic - ECW Total size Gb - MGA Total size Gb - Geographic Total size Gb - Geographic 2006 4/11/2005 7/10/2006 162.1* 145.0* 4.6 2005 5/12/2004 9/10/2005 96.1 85.3 4.2 2004 1/09/2003 25/09/2004 96.1 85.3 4.6 2002 (No Pan) 9/11/2001 27/11/2002 96.1 43.4 4.6 2002 Pan 9/11/2001 27/11/2002 64.1 57.8 N/A 2002 Pan sharpened 9/11/2001 27/11/2002 N/A N/A 4.6 2000 (No Pan) 14/07/1999 21/09/2000 96.1 43.4 4.6 1998 20/05/1997 31/08/1998 96.1 43.4 3.9 1995 11/06/1994 29/08/1995 96.1 43.4 3.9 1992 1/01/1992 11/03/1993 96.1 43.4 3.9 1991 27/09/1990 9/07/1991 96.1 43.4 3.9 1989 1/07/1989 3/04/1990 112.1 43.4 4.0 1988 12/07/1987 7/09/1988 16.1 14.5 3.7 1985 18/06/1984 20/07/1985 16.1 14.5 3.6 1980 21/09/1979 24/01/1981 16.1 14.5 3.7 1977 25/02/1975 20/12/1978 16.1 14.5 2.7 1972 28/07/1972 29/10/1976 16.1 14.5 3.5 *Includes date and boundary (datebound) data. Sensor/Epoch Landsat TM and ETM+ SLC-Off: 2006; Landsat MSS: 1972, 1977, 1980, 1985, 1988; Landsat TM: 1989*, 1991, 1992, 1995, 1998, 2004 and 2005; and Landsat ETM+: 2000 and 2002. *Includes simulated MSS from Landsat TM (MGA projection only). Projection Either MGA94 OR Geographic. Bands All bands except thermal bands - MGA coordinates; All bands except thermal bands - Geographical coordinates, 2004, 2005 & 2006 epochs; 5,4,3 for TM & ETM+ and all bands for MSS - Geographical coordinates, Pre 2004 epochs only; Panchromatic band available separately only for 2002 epoch - MGA & Geographical coordinates. Processing Ortho-corrected, radiometrically corrected and mosaiced into tiles. All data is calibrated to a common geographic and spectral base (AGO year 2000 base). Note: Single scene boundaries can be quite obvious within a tile due mainly to the seasonal changes associated with different acquisition dates. Details of the processing characteristics are available from Technical Report No. 9. Tiling system Tiles approximate 1:1 million map sheets covering Australia. Most tiles contain overlap beyond the quoted extents. Coverage View a detailed map of the 1972 to 2005 epoch extents. Download an ESRI shapefile of the date and boundary (datebound) of each Landsat scene used to produce the epochs from 1972 to 2005. The introduction of SLC-Off and bumper mode Landsat products for the 2006 epoch has meant that a new method has been required for creating datebound information. The new 2006 date bounds are currently in raster form as opposed to the traditional vector. The rasters are in ER Mapper Storage format (ERS) format as Geodetic or MGA projections - file size 61 or 66 Gb. Pixel size 25 metres TM and ETM+ and 50 metres MSS. Format Generic BIL files with ER Mapper ASCII header. File size Variable -11:45 AM 1/04/2010: This data is available under Austrlian Creative Commons 2.5: http://creativecommons.org/licenses/by/2.5/

  • The Australian Reflectance Grid (ARG) is a new generation Earth Observation product suite from Geoscience Australia. These standard data products deliver optical surface reflectance data across the Australian landmass and its coastal fringes. This means the products are representative of the optical reflectance properties of the surface, with the variable effects of the atmosphere removed. The resulting datasets are effectively sensor agnostic and future products in this suite are intended to be readily comparable between scales. The first product in this suite is the ARG25, a medium resolution (25 m) grid based on Landsat imagery.

  • More than 100 bushfires raged across NSW from 25 December 2001 - January 8 2002, requiring over 20,000 regular and volunteer fire fighters and 85 aircraft. Vast stretches of forests were destroyed, including more than 60% of the Royal National Park. More than 11,000 people were evacuated from their homes and 560,000 hectares were burnt out. The image below was acquired from the SPOT satellite on 27 December 2001 by ACRES, Geoscience Australia. It is produced here as a mosaic of 8 SPOT scenes covering about 120km wide and 240km long, stretching from Wyong in the north to Jervis Bay in the south. Healthy vegetation shows as bright red, forest as dark red, ocean and lakes as dark blue, burnt areas as black and smoke as blue/white.

  • The product SAR.SLC is a single look complex digital image generated from raw SAR data using up-to-date auxiliary parameters. The image, projected on slant range, referred to as 'quarter scene' or quadrant corresponds to approximately 75 km wide and at least 75 km long. The JERS SAR.SLC format is based on the general definition of the SAR CEOS format (ref. ER-IS-EPS-GS-5902).

  • These AUSLIG/ACRES datasets represent the coverage of LANDSAT5 TM scenes, The ERS paths, SPOT paths and the locations of RADARSAT scenes over the Australian region. The LANDSAT5 TM dataset is attributed with the path and row numbers of scenes. This dataset can be used in conjunction with the AGSO REMOS database to locate satellite imagery AGSO holds. The RADARSAT dataset represents all the radarsat (SAR) scenes AGSO (PMD) has purchased and have stored in-house. SAR stands for Synthetic Aperature Radar. RADARSAT is a Canadian satellite and scenes are from a company called RADARSAT International (RSI). AGSO (PMD) updates its holdings of these satellite scenes on a 6 monthly basis. Almost all scenes have been interpreted by AGSO and external contractors. Please speak to Mark Webster for more information on this.

  • Regolith materials spatially and chemically associated with various types of ore deposits, such as iron oxides, manganese oxides and gold deposits for example, have the potential to be mapped and characterised using remote sensing techniques. With the release of new state-scale multispectral data such as the Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) Geoscience map of Western Australia (Figure 1), these applications may be tested and evaluated, along with identifying ore deposit types and characteristics best suited to using remote sensing techniques. A world-first continental scale ASTER mosaic and pre-competitive geoscience products for Australia are planned for public release in August 2012. The ASTER products are designed to provide broad scale mineral group information for mineral explorers at the continental to prospect scale. The product will be particularly useful for obtaining information on remote or difficult to access areas of Australia. ASTER data consists of 14 bands from Visible and Near Infrared (VNIR) light, through Short Wave Infrared (SWIR) and Thermal Infrared (TIR) encompassing different reflectance and emission spectras from the top few microns of material on the Earth's surface (Figure 2).

  • Digital elevation data which describes Australia's landforms and seabed is crucial for addressing issues relating to the impacts of climate change, disaster management, water security, environmental management, urban planning and infrastructure design. In recent years dramatic developments in LiDAR technology and industry capabilities have revolutionised our ability to address these issues at the local level. However, inconsistent and diverse product specifications, and variable data quality are often making it difficult to integrate datasets to address regional, state and national issues. In order to optimise investment and the utility of both existing and future data collections there is a need for a national base specification which defines a consistent set of minimum products which ensure compatibility across projects and States.

  • Geoscience Australia has created a DVD 'Landsat Metadata Map Ups of Indonesia' for the Indonesian Ministry of Forestry (MoF). The DVD contains Landsat metadata information sourced from USGS and GISTDA for selected years based on the catalogue searches that Geoscience Australia has done to-date. This is one of the action items from the Bali Remote Sensing workshop in February 2009.