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Tracking Clouds (DAAC Study)
common birthplaces of many storms. Currently, the cloud motion data used to derive wind measurements are observed from geostationary satellites. These instruments orbit the equator, obtaining images of the Earth’s surface below to roughly 55 d...
Aerial Photographs and Satellite Images
and from those of some other Federal agencies. In addition, many images from such space programs as Landsat, begun in 1972, are held by the USGS. Most satellite scenes can be obtained only in digital form for use in computer-based image processing a...
NASA's Planetary Photojournal: Earth
Images of Earth and All Available Satellites Subscribe Your search criteria found 1696 images Target is Earth (and available satellites) Go directly to image (PIxxxxxx): Other Search Methods Sub-select this list of images...
Observing Volcanoes, Satellite Thinks for Itself
available opportunity, on December 4, 2006. The system transmitted a preview of the data to JPL on December 4, showing the intense thermal emission characteristic of ongoing volcanic activity. Complete high-resolution images and thermal data pi...
 Smithsonian: Reflections on Earth: Biodiversity and Remote Sensing Teacher Guide
Landsat TM image has a resolution of 30 m. A 1-ha plot (100 m x 100 m) would be equivalent to approximately 9 pixels (a square of 3 pixels by 3 pixels). School biodiversity plots are only 20 m2.) 5. Ask students what factors might affect the use of satell...
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Landsat TM image has a resolution of 30 m. A 1-ha plot (100 m x 100 m) would be equivalent to approximately 9 pixels (a square of 3 pixels by 3 pixels). School biodiversity plots are only 20 m2.) 5. Ask students what factors might affect the use of satellite images. (Cloud cover, for example, can reduce the detail obtained from a Landsat image.) EXTENSIONS 1. Repeat the above activity with a satellite image of your school site, (which should be available from the USGS web site) and a local topographic map
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http://www.nasm.si.edu/education/pubs/reflecttg.pdf#page=18
www.nasm.si.edu/education/pubs/reflecttg.pdf#page=18
Accurate land cover maps enable us to identify and preserve areas that have <span class="highlight">the</span> greatest potential contribution to long-term conservation <span class="highlight">of</span> biodiversity, and they target sites that will provide <span class="highlight">the</span> most useful information <span class="highlight">for</span> scientists and policymakers. According to <span class="highlight">the</span> National Aeronautics and Space Administration’s (NASA’s) education module, “Studying Earth’s Environment from Space,” land cover <span class="highlight">classification</span> <span class="highlight">using</span> remote sensing is <span class="highlight">based</span> on <span class="highlight">the</span> assumption that different types <span class="highlight">of</span> land cover have distinct
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http://www.nasm.si.edu/education/pubs/reflecttg.pdf#page=21
www.nasm.si.edu/education/pubs/reflecttg.pdf#page=21
Landsat TM <span class="highlight">image</span> has a <span class="highlight">resolution</span> <span class="highlight">of</span> 30 m. A 1-ha plot (100 m x 100 m) would be equivalent to approximately 9 pixels (a square <span class="highlight">of</span> 3 pixels by 3 pixels). School biodiversity plots are only 20 m2.) 5. Ask students what factors might affect <span class="highlight">the</span> use <span class="highlight">of</span> <span class="highlight">satellite</span> <span class="highlight">images</span>. (<span class="highlight">Cloud</span> cover, <span class="highlight">for</span> example, can reduce <span class="highlight">the</span> detail obtained from a Landsat <span class="highlight">image</span>.) EXTENSIONS 1. Repeat <span class="highlight">the</span> above activity with a <span class="highlight">satellite</span> <span class="highlight">image</span> <span class="highlight">of</span> your school site, (which should be available from <span class="highlight">the</span> USGS web site) and a local topographic map
U.S. Reconnaissance Satellites: Domestic Targets
Security that his department resolving their concerns was the first priority, before taking actions (such as advertising for personnel) to turn the NAO from a concept into an active entity. The use of classified satellite reconnaissance systems - particu...
Overview of the Hubble Space Telescope
instruments includes three cameras, two spectrographs, and fine guidance sensors (primarily used for accurate pointing, but also for astrometric observations). Because of HST's location above the Earth's atmosphere, these science instruments can produce high-res...
A Burning Question (DAAC Study)
examined only spectral information, the differences between instrument channels," Christopher said. The researchers compared data from two sensors, the Advanced Very High Resolution Radiometer (AVHRR) and Earth Radiation Budget Experiment (ERBE) scanner, both...
Terra Turns Five
Five years ago NASA’s Terra satellite began measuring Earth’s vital signs with a combination of accuracy, precision, and resolution the world had never before seen. Today, Terra completes the fifth year in what was scheduled to be at least a 6-...
NASA Scientists Get First Images of Earth Flyby Asteroid
plan is to have a combination of several telescopes provide higher resolution images. Image credit: NASA/JPL-Caltech Ostro and his team plan further radar observations of asteroid 2007 TU24 using the National Science Foundation's Arecibo Observator...
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