Users of
the NGS-managed Continuously Operating Reference Station (CORS) network passed
a notable milestone at the end of October, downloading the 200 millionth GPS
data file from the network. These data enable users to determine
centimeter-level positions consistent to the National Spatial Reference System
(NSRS)—the coordinate system that defines latitude, longitude, height, scale,
gravity, and orientation for the Nation. Via the CORS network, users are able
to simultaneously process their own GPS data with data from the network to
support three-dimensional positioning, meteorology, space weather, and
geophysical applications.
NGS dates
back to 1807 when Thomas Jefferson signed legislation to establish the Survey
of the Coast. The same basic techniques based on line-of-sight observations
were used in geodetic surveying until GPS revolutionized the industry. This 200
millionth milestone exemplifies how NGS is steeped in tradition, while meeting
the needs of its customers with accuracy and efficiency today and into the
future.
For more information, contact: Joe.Evjen@noaa.gov
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