The Broad View
High Altitude Aerial
Photography
High altitude photography
allows coverage of vast areas on a single frame. Large-scale structures
and landmarks can be quickly and conveniently scanned, mapped, or surveyed.
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Cape Cod, Massachusetts from 19,800 meters (65,000 feet).
NASA Photograph
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Ascension Parish, Louisiana from 12,200 meters (40,000 feet).
Courtesy of National High Altitude Photography Program,
EROS Data Center, U.S. Geological Survey
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Furnas County, Nebraska from 12,200 meters (40,000 feet).
Courtesy of National High Altitude Photography Program,
EROS Data Center, U.S. Geological Survey
High Resolution Aerial
Photography
High resolution photography
provides coverage of large areas without loss of fine detail. Both a broad
regional overview and a detailed local survey can be combined in one photo.
Photographs courtesy
of Raytheon Systems Company.

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High resolution view of New Orleans from about 13,000 meters (42,000
feet). |
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The same scene enlarged 12 times. |
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The same scene enlarged 24 times. |
Airborne Radar
Airborne radar provides
the capability to study geologic structures and terrain characteristics
as they extend over large areas. Because radar "sees" through clouds, imagery
is available in all kinds of weather. Radar images have useful applications
in the fields of mineral resource exploration and ground-water analysis.
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Side-looking Airborne Radar image of the De Long Mountains region in Alaska.
The "smiling face" is in reality a geologic structure of folded rocks
called a syncline.
Courtesy of EROS Data Center, U.S. Geological Survey
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Side-looking Airborne Radar image of the Ugashik region of Alaska.
Courtesy of EROS Data Center, U.S. Geological Survey
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