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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Library of Congress Model, Perspective View
Title
Library of Congress Model, Perspective View
Title
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Original Caption Released with Image:
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The Shuttle Radar Topography Mission (SRTM) has produced the first high-resolution, near-global elevation dataset of Earth. In recognition of this achievement, and as an illustration of the data, the United States Library of Congress now displays a "solid terrain model" of Los Angeles and adjacent mountainous terrain. The model was created by carving a high-density foam block using computer-guided drills that referenced the SRTM dataset. The block was then covered with a Landsat satellite image using computer-guided paint guns that referenced both the Landsat image and the SRTM dataset. The view shown here mimics the actual model on display at the Library of Congress and was generated from the same satellite image and elevation data sets.
The model shows the Pacific Ocean and Santa Monica Mountains along the Malibu Coast (lower left), San Fernando Valley (left center), downtown Los Angeles (bottom center), San Gabriel and Pomona Valleys (lower right), San Gabriel Mountains (right center to far right), and part of the Mojave Desert (upper right). Colors are enhanced true color with added topographic shading, and elevation differences are exaggerated 1.5 times. The view is toward the north-northwest.
The Los Angeles region was chosen for the Library of Congress model because it illustrates so many ways that topography affects the daily lives of people. The region consists of a coastal plain, inland valleys, mountains up to 3068 meters (10,064 feet), and a desert interior. Topography blocks the landward influence of marine airmasses here such that summer temperatures often differ by 40 degrees Fahrenheit (22 C) across this region at a given moment even at similar elevations. Temperatures also typically cool with rising elevation, and winter storms drop most of their moisture in the mountains, leaving little rainfall for areas further inland, thus creating the deserts.
Topography also controls the land use pattern. The mountains are mostly very rugged, which greatly limits urban expansion. Similarly, major transportation routes are limited to a few mountain passes. Water supply to the city and drainage away from it both follow paths largely dictated by topography. Radio, television, and cell phone transmission towers are all sited with topography in mind to maximize coverage.
Its climate and scenic mountain surroundings have been a major part of the appeal of the Los Angeles region as it has grown into one of the world's largest cities over the past 150 years. But the topography that has created this environment also results from and leads to significant natural hazards. The tall mountains result from tectonic compression and uplift of Earth's crust along a kink in the San Andreas fault. (The fault is seen here as a straight boundary between the Mojave Desert and the San Gabriel Mountains.) Major earthquakes occur on the San Andreas fault every few centuries. Damaging earthquakes also occur on other faults across the region several times in a
Original_Caption_Rel eased_with_Image
The Shuttle Radar Topography Mission (SRTM) has produced the first high-resolution, near-global elevation dataset of Earth. In recognition of this achievement, and as an illustration of the data, the United States Library of Congress now displays a "solid terrain model" of Los Angeles and adjacent mountainous terrain. The model was created by carving a high-density foam block using computer-guided drills that referenced the SRTM dataset. The block was then covered with a Landsat satellite image using computer-guided paint guns that referenced both the Landsat image and the SRTM dataset. The view shown here mimics the actual model on display at the Library of Congress and was generated from the same satellite image and elevation data sets.
The model shows the Pacific Ocean and Santa Monica Mountains along the Malibu Coast (lower left), San Fernando Valley (left center), downtown Los Angeles (bottom center), San Gabriel and Pomona Valleys (lower right), San Gabriel Mountains (right center to far right), and part of the Mojave Desert (upper right). Colors are enhanced true color with added topographic shading, and elevation differences are exaggerated 1.5 times. The view is toward the north-northwest.
The Los Angeles region was chosen for the Library of Congress model because it illustrates so many ways that topography affects the daily lives of people. The region consists of a coastal plain, inland valleys, mountains up to 3068 meters (10,064 feet), and a desert interior. Topography blocks the landward influence of marine airmasses here such that summer temperatures often differ by 40 degrees Fahrenheit (22 C) across this region at a given moment even at similar elevations. Temperatures also typically cool with rising elevation, and winter storms drop most of their moisture in the mountains, leaving little rainfall for areas further inland, thus creating the deserts.
Topography also controls the land use pattern. The mountains are mostly very rugged, which greatly limits urban expansion. Similarly, major transportation routes are limited to a few mountain passes. Water supply to the city and drainage away from it both follow paths largely dictated by topography. Radio, television, and cell phone transmission towers are all sited with topography in mind to maximize coverage.
Its climate and scenic mountain surroundings have been a major part of the appeal of the Los Angeles region as it has grown into one of the world's largest cities over the past 150 years. But the topography that has created this environment also results from and leads to significant natural hazards. The tall mountains result from tectonic compression and uplift of Earth's crust along a kink in the San Andreas fault. (The fault is seen here as a straight boundary between the Mojave Desert and the San Gabriel Mountains.) Major earthquakes occur on the San Andreas fault every few centuries. Damaging earthquakes also occur on other faults across the region several times in a
Original Caption Released with Image
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Original Caption Released with Image:
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typical human lifespan. Most of these faults were first recognized by their impact upon the topographic pattern. Meanwhile, wildfires are common in the chaparral covered hills and mountains, and topography affects the fire's path (burning more readily upslope) as well as our ability to fight it. After a fire, rainfall from winter storms often strips exposed soil, accumulates it as mudflows in rugged canyons, and dumps it into the adjacent valleys which are now heavily urbanized. Topography is indeed important in the lives of the people of Los Angeles.
Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data substantially help in analyzing Landsat images by revealing the third dimension of Earth's surface, topographic height. The Landsat archive is managed by the U.S. Geological Survey's Eros Data Center (USGS EDC).
Elevation data used in this image were acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Geospatial-Intellige nce Agency (NGA) of the U.S. Department of Defense (DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise, Washington, DC.
Size: Block length 120 kilometers (74 miles), block width 60 kilometers (37 miles)
Location: 34.2 degrees North latitude, 118.3 degrees West longitude
Orientation: View North-Northwest, 1.5 times vertical exaggeration
Image Data: Landsat bands 3, 2, 1 as red, green, blue, respectively, plus elevation shading.
Date Acquired: February 2000 (SRTM), May 4, 2001 (Landsat)
Original_Caption_Rel eased_with_Image
typical human lifespan. Most of these faults were first recognized by their impact upon the topographic pattern. Meanwhile, wildfires are common in the chaparral covered hills and mountains, and topography affects the fire's path (burning more readily upslope) as well as our ability to fight it. After a fire, rainfall from winter storms often strips exposed soil, accumulates it as mudflows in rugged canyons, and dumps it into the adjacent valleys which are now heavily urbanized. Topography is indeed important in the lives of the people of Los Angeles.
Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data substantially help in analyzing Landsat images by revealing the third dimension of Earth's surface, topographic height. The Landsat archive is managed by the U.S. Geological Survey's Eros Data Center (USGS EDC).
Elevation data used in this image were acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Geospatial-Intellige nce Agency (NGA) of the U.S. Department of Defense (DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise, Washington, DC.
Size: Block length 120 kilometers (74 miles), block width 60 kilometers (37 miles)
Location: 34.2 degrees North latitude, 118.3 degrees West longitude
Orientation: View North-Northwest, 1.5 times vertical exaggeration
Image Data: Landsat bands 3, 2, 1 as red, green, blue, respectively, plus elevation shading.
Date Acquired: February 2000 (SRTM), May 4, 2001 (Landsat)
Original Caption Released with Image
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Image Credit:
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NASA/JPL/NIMA
Image_Credit
NASA/JPL/NIMA
Image Credit
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Produced By:
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JPL
Produced_By
JPL
Produced By
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Mission:
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Landsat
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Mission:
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Shuttle Radar Topography Mission (SRTM)
Mission
Shuttle Radar Topography Mission (SRTM)
Mission
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Spacecraft:
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Landsat
Spacecraft
Landsat
Spacecraft
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Spacecraft:
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Space Shuttle
Spacecraft
Space Shuttle
Spacecraft
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Target Name:
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Earth
Target_Name
Earth
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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X-Band Radar
Instrument
X-Band Radar
Instrument
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Instrument:
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C-Band Radar
Instrument
C-Band Radar
Instrument
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Product Size:
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5000 samples x 1700 lines
Product_Size
5000 samples x 1700 lines
Product Size
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Earth
facet_what
Earth
facet_what
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facet_what:
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C/X-Band Synthetic Aperture Radar
facet_what
C/X-Band Synthetic Aperture Radar
facet_what
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facet_what:
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Spaceborne Imaging Radar
facet_what
Spaceborne Imaging Radar
facet_what
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facet_what:
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Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
facet_what
Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
facet_what
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facet_what:
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Space Shuttle Endeavour
facet_what
Space Shuttle Endeavour
facet_what
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facet_what:
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Landsat
facet_what
Landsat
facet_what
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facet_what:
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Shuttle Radar Topography Mission
facet_what
Shuttle Radar Topography Mission
facet_what
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facet_what:
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SRTM
facet_what
SRTM
facet_what
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facet_what:
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C-Band Radar
facet_what
C-Band Radar
facet_what
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facet_what:
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X-Band Radar
facet_what
X-Band Radar
facet_what
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facet_what:
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Space Shuttle Orbiter
facet_what
Space Shuttle Orbiter
facet_what
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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facet_where:
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Pacific Ocean
facet_where
Pacific Ocean
facet_where
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facet_where:
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Washington
facet_where
Washington
facet_where
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facet_where:
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Los Angeles
facet_where
Los Angeles
facet_where
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facet_where:
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San Fernando
facet_where
San Fernando
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_where:
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United States of America
facet_where
United States of America
facet_where
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facet_when:
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1994
facet_when
1994
facet_when
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facet_when:
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February 2000
facet_when
February 2000
facet_when
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facet_when:
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February 11, 2000
facet_when
February 11, 2000
facet_when
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facet_when:
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May 4, 2001
facet_when
May 4, 2001
facet_when
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facet_when_year:
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1994
facet_when_year
1994
facet_when_year
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facet_when_year:
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2001
facet_when_year
2001
facet_when_year
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facet_when_year:
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2000
facet_when_year
2000
facet_when_year
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Image #:
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PIA04967
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UID:
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SPD-PHOTJ-PIA04967
UID
SPD-PHOTJ-PIA04967
UID
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orignial url:
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orignial_url
orignial url
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