Thematic Mapper Landsat 4

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  Landsat program

  The Landsat program is the longest running enterprise for acquisition of imagery of Earth from space. The first Landsat satellite was launched in 1972; the most recent, Landsat 7, was launched on April 15, 1999. The instruments on the Landsat satellites have acquired millions of images. The images,...
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  Landsat 1

  Landsat 1, originally named "Earth Resources Technology Satellite 1", was the first satellite of the United States' Landsat program. It was a modified version of the Nimbus 4 meteorological satellite and was launched on July 23, 1972 by a Delta 900 rocket from Vandenberg Air Force Base in...
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  Landsat 4

  Landsat 4 is the fourth satellite of the Landsat program. It was launched on July 16th, 1982, with the primary goal of providing a global archive of satellite photos. Although the Landsat Program is managed by NASA, data from Landsat 4 was collected and distributed by the USGS. Landsat 4 is no...
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  Landsat 3

  Landsat 3 is the third satellite of the Landsat program. It was launched on March 5th, 1978, with the primary goal of providing a global archive of satellite photos. Unlike later Landsats, Landsat 3 was managed solely by NASA. Landsat 3 is no longer in operation, due to technical failure. It...
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  Landsat 2

  Landsat 2 is the second satellite of the Landsat program. The spacecraft originally carried a designation of ERTS-B (Earth Resource Technology Satellite B) but was renamed "Landsat 2" prior to its launch on January 22, 1975. Despite having a design life of one year, Landsat 2 operated for over...
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  Landsat 5

  Landsat 5 is the fifth satellite of the Landsat program. It was launched on March 1, 1984, with the primary goal of providing a global archive of satellite photos. The Landsat Program is managed by USGS, and data from Landsat 5 is collected and distributed from the USGS's Center for Earth Resources...

• Floristic alliance

  Alliances represent an aggregation of floristic associations and are characterized by one or a group of diagnostic species which, as a rule, occur in the dominant or uppermost stratum of the vegetation. The diagnostic species used to determine both the Alliance and Association are primarily the...

• ETM+

• Floristic association

  A floristic unit which is characterized by diagnostic species that occur in all strata (overstory and understory) of the vegetation, which may be aggregated into floristic alliances. The diagnostic species used to determine both the Alliance and Association are primarily the dominant species. When...

• Thematic Mapper Landsat 5

  One of the Earth observing sensors introduced in the Landsat program. A Thematic Mapper (TM) was first placed aboard Landsat 4 (decommissioned in 2001), and one is still operational aboard Landsat 5 as of May 2007. TM sensors feature seven bands of image data (three in visible wavelengths, four in...