WMS Digital Earth Australia OGC Web Services geomedian WOfS mangrove bare-earth NIDEM HLTC landsat australia time-series fractional-cover Digital Earth Australia Geoscience Australia postal

GPO Box 378

Canberra ACT 2609 Australia +61 2 6249 9111 earth.observation@ga.gov.au none © Commonwealth of Australia (Geoscience Australia) 2018. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode 1 512 512 text/xml image/png application/json XML Digital Earth Australia OGC Web Services EPSG:3857 EPSG:4326 EPSG:3577 EPSG:3111 100 160 -50 -10 ls8_nbart_geomedian_annual Data is only visible at higher resolutions; when zoomed-out the available area will be displayed as a shaded region. The surface reflectance geometric median (geomedian) is a pixel composite mosaic of a time series of earth observations. The value of a pixel in a an annual geomedian image is the statistical median of all observations for that pixel from a calendar year. Annual mosaics are available for the following years:Landsat 8: 2013 to 2017;For more information, see http://pid.geoscience.gov.au/dataset/ga/120374For service status information, see https://status.dea.ga.gov.au WOfS HLTC landsat time-series mangrove bare-earth australia geomedian NIDEM fractional-cover 109.989859933428 156.101505058599 -45.2413329418709 -9.02727104242042 2013-01-01,2014-01-01,2015-01-01,2016-01-01,2017-01-01,2018-01-01 ls7_nbart_geomedian_annual Data is only visible at higher resolutions; when zoomed-out the available area will be displayed as a shaded region. The surface reflectance geometric median (geomedian) is a pixel composite mosaic of a time series of earth observations. The value of a pixel in a an annual geomedian image is the statistical median of all observations for that pixel from a calendar year. Annual mosaics are available for the following years:Landsat 7: 2000 to 2017;For more information, see http://pid.geoscience.gov.au/dataset/ga/120374For service status information, see https://status.dea.ga.gov.au WOfS HLTC landsat time-series mangrove bare-earth australia geomedian NIDEM fractional-cover 109.989859933428 156.101505058599 -45.2413329418709 -9.02727104242042 2000-01-01,2001-01-01,2002-01-01,2003-01-01,2004-01-01,2005-01-01,2006-01-01,2007-01-01,2008-01-01,2009-01-01,2010-01-01,2011-01-01,2012-01-01,2013-01-01,2014-01-01,2015-01-01,2016-01-01,2017-01-01,2018-01-01 ls5_nbart_geomedian_annual Data is only visible at higher resolutions; when zoomed-out the available area will be displayed as a shaded region. The surface reflectance geometric median (geomedian) is a pixel composite mosaic of a time series of earth observations. The value of a pixel in a an annual geomedian image is the statistical median of all observations for that pixel from a calendar year. Annual mosaics are available for the following years:Landsat 5: 1988 to 1999, 2004 to 2007, 2009 to 2011;For more information, see http://pid.geoscience.gov.au/dataset/ga/120374For service status information, see https://status.dea.ga.gov.au WOfS HLTC landsat time-series mangrove bare-earth australia geomedian NIDEM fractional-cover 109.989859933428 156.101505058599 -45.2413329418709 -9.02727104242042 1988-01-01,1989-01-01,1990-01-01,1991-01-01,1992-01-01,1993-01-01,1994-01-01,1995-01-01,1996-01-01,1997-01-01,1998-01-01,1999-01-01,2004-01-01,2005-01-01,2006-01-01,2007-01-01,2009-01-01,2010-01-01,2011-01-01 A `weighted geometric median’ approach has been used to estimate the median surface reflectance of the barest state (i.e., least vegetation) observed through Landsat-8 OLI observations from 2013 to September 2018 to generate a six-band Landsat-8 Barest Earth pixel composite mosaic over the Australian continent.The bands include BLUE (0.452 - 0.512), GREEN (0.533 - 0.590), RED, (0.636 - 0.673) NIR (0.851 - 0.879), SWIR1 (1.566 - 1.651) and SWIR2 (2.107 - 2.294) wavelength regions. The weighted median approach is robust to outliers (such as cloud, shadows, saturation, corrupted pixels) and also maintains the relationship between all the spectral wavelengths in the spectra observed through time. The product reduces the influence of vegetation and allows for more direct mapping of soil and rock mineralogy.Reference: Dale Roberts, John Wilford, and Omar Ghattas (2018). Revealing the Australian Continent at its Barest, submitted.Mosaics are available for the following years: Landsat 8: 2013 to 2017; ls8_barest_earth_mosaic A `weighted geometric median’ approach has been used to estimate the median surface reflectance of the barest state (i.e., least vegetation) observed through Landsat-8 OLI observations from 2013 to September 2018 to generate a six-band Landsat-8 Barest Earth pixel composite mosaic over the Australian continent.The bands include BLUE (0.452 - 0.512), GREEN (0.533 - 0.590), RED, (0.636 - 0.673) NIR (0.851 - 0.879), SWIR1 (1.566 - 1.651) and SWIR2 (2.107 - 2.294) wavelength regions. The weighted median approach is robust to outliers (such as cloud, shadows, saturation, corrupted pixels) and also maintains the relationship between all the spectral wavelengths in the spectra observed through time. The product reduces the influence of vegetation and allows for more direct mapping of soil and rock mineralogy.Reference: Dale Roberts, John Wilford, and Omar Ghattas (2018). Revealing the Australian Continent at its Barest, submitted.Mosaics are available for the following years: Landsat 8: 2013 to 2017;For service status information, see https://status.dea.ga.gov.au WOfS HLTC landsat time-series mangrove bare-earth australia geomedian NIDEM fractional-cover 109.989859933428 156.101505058599 -45.2413329418709 -9.02727104242042 An estimate of the spectra of the barest state (i.e., least vegetation) observed from imagery of the Australian continent collected by the Landsat 5, 7, and 8 satellites over a period of more than 30 years (1983 - 2018). The bands include BLUE (0.452 - 0.512), GREEN (0.533 - 0.590), RED, (0.636 - 0.673) NIR (0.851 - 0.879), SWIR1 (1.566 - 1.651) and SWIR2 (2.107 - 2.294) wavelength regions. The approach is robust to outliers (such as cloud, shadows, saturation, corrupted pixels) and also maintains the relationship between all the spectral wavelengths in the spectra observed through time. The product reduces the influence of vegetation and allows for more direct mapping of soil and rock mineralogy. This product complements the Landsat-8 Barest Earth which is based on the same algorithm but just uses Landsat8 satellite imagery from 2013-2108. Landsat-8's OLI sensor provides improved signal-to-noise radiometric (SNR) performance quantised over a 12-bit dynamic range compared to the 8-bit dynamic range of Landsat-5 and Landsat-7 data. However the Landsat 30+ Barest Earth has a greater capacity to find the barest ground due to the greater temporal depth. Reference: Roberts, D., Wilford, J., Ghattas, O. (2019). Exposed Soil and Mineral Map of the Australian Continent Revealing the Land at its Barest. Nature Communications. Mosaics are available for the following years: Landsat 5 / Landsat 7 / Landsat 8 - 1983 to 2018; landsat_barest_earth NOTE this layer has no EX_GeographicBoundingBox WOfS HLTC landsat time-series mangrove bare-earth australia geomedian NIDEM fractional-cover Some other catalog EPSG:3857 EPSG:4326 EPSG:3577 EPSG:3111 100 160 -50 -10 This is another layer called Surface Reflectance some_layer Some layer WOfS 109.989859933428 156.101505058599 -45.2413329418709 -9.02727104242042 2013-01-01,2014-01-01,2015-01-01,2016-01-01,2017-01-01,2018-01-01