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True Marble

Unearthed Outdoors is proud to present our line of full color global imagery. Our True Marble™ imagery is some of the most realistic medium resolution imagery available on the market. At 15 meter resolution, this true color imagery can be used for:

  • GIS & web mapping applications
  • High Definition Television (HDTV) effects (weather, movies, news)
  • Flight Simulation
  • Terrain Simulation & Visualization
  • Oil & Gas Visualization

It was built from the best available Landsat scenes which have been chosen to optimize vegetation quality and to reduce the cloud cover. These orthorectified scenes were fed into proprietary, advanced, color adjustment algorithms to produce true color imagery while reducing atmospheric haze. This imagery was optimized to produce the most natural color while maintaining a high local contrast and dynamic range, resulting in a significant improvement over similar products.

Available as tiles measuring 2° on a side (49,284km² at the equator), True Marble™ is available for purchase for latitudes between N84° and S60°. The tiles are georeferenced in WGS84 Lat/Lon projection for use in GIS programs. The GeoTIFF format maintains compatibility with popular image processing programs such as Adobe Photoshop™. Mercator projection and tiled JPEG format are also available. Other formats and projections are available on request.

A reduced resolution of the True Marble™, Global True Marble™, is available for free download. This dataset can be used to preview pending purchases, or for any other usage. We only ask that copyright be attributed to Unearthed Outdoors when reproduced.

Data was collected by the Landsat 7 ETM+ sensor between 1999 and 2002. Due to environmental and complexity reasons clouds occur in some areas of the globe, mainly over ocean. A few remote errors also exist due to to the Landsat system, but they are minimal.