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LTER Medea/Global
Fiducial Library (GFL) - Reconnaissance imagery of LTER Sites
The Global Fiducial Program, or Library (GFL) resulted from a National
Research Council panel recommending data for a global network of
fiducial sites as a tool to address global issues to include, but
not limited to sea-level change, tectonic plate motion and other
global change issues. With the approval of the LTER Coordinating
Committee in 1996, the LTER Network Office has worked to register
all LTER sites as GFL targets to enable operational collection of
GFL data. Although historic data is publicly available with
the declassification of some past intelligence satellite data, although
access to current data requires proper security clearance. One
other organized group of GFL sites is from the National
Park Service. The GFL data are maintained by the USGS.
For
more information, contact John Vande
Castle, LTER Network Office
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