Obtaining DOQ Image Data
from MSN TerraServer
Terraserver provides DOQs for viewing, purchasing,
and sometimes free downloading. Although some of Terraserver's images
are geopositioned (i.e., north = north), they are usually not georeferenced
but can be for an extra fee (contact Terraserver for details).
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Go to Terraserver at www.terraserver.com.
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Click on the View Images link near
the center of the screen.
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Although you could use the coverage map, click
on the advanced find button for this example.
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Enter as much information as you know about
a particular place. For example, type in "Doylestown" in the City
or Place Name field. Type in "Pennsylvania" in the State or
Province field. Type in "USA" in the Country field and
choose "City" from the Place Type field.
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Click the "go!" button. You could
enter in more or less information than we just did, but either way Terraserver
will search for your information based on what you enter -- the more information
you have the better. Terraserver will find any documents (i.e., maps,
photographs) that match your search criteria.
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For this example, click on the
USGS Aerial
Photograph 28 Sep 1996 link under Doylestown, Pennsylvania, United
States. You are now looking at the aerial photograph. You
can zoom out, zoom in, and even download the image if you wish.
While at the Terraserver site, you can click on the Image Information
button to view latitude/longitude as well as other information about the
photograph.
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