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Landsat |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.06 sec. |
Landsatofficially Earth Resources Technology SatellitesAny of a series of unmanned U.S. scientific satellites. The first three were launched in 1972, 1975, and 1978. They were designed mainly to collect information about Earth's natural resources. They were also equipped to monitor atmospheric and oceanic conditions and to detect variations in pollution levels and other ecological changes. Three more Landsat satellites were launched successfully, in 1982, 1984, and 1999; radio communication with Landsat 6 was lost immediately after its launch in 1993. |
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| A green infrastructure plan was developed at two scales--one using Landsat satellite images (taken from NASA satellites) to document landcover change over 17 years and another using high-resolution satellite and airborne imagery to make it possible to identify individual trees for daily decision making. Buying higher resolution Landsat data will be expensive. Thermal imagery has been combined with Landsat Thematic Mapper data in many cities; one example, Dallas, Texas, shows an urban heat island effect of 5-11[degrees]C compared to surrounding rural areas (Aniello et al. |
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