April 23, 2014
Observing a plate boundary
More than 280 continuous GPS (cGPS) stations in Cascadia are part of the U.S. Plate Boundary Observatory (PBO), a component of EarthScope, which …
The EARTH archive
Gps
Explore the archive by subject.
7 articles · Page 1 of 1
April 23, 2014
A truly global system
Like the GPS navigation system in your car or smartphone, a high-precision GPS receiver uses signals from satellites to determine the distance …
April 23, 2014
A new tool for atmospheric studies
Scientists are putting GPS to work in some unexpected new ways. For example, John Braun, a project scientist at the University Corporation for …
April 14, 2014
Precise to a fault: How GPS revolutionized seismic research
In the late 1980s, Ken Hudnut, a Columbia University graduate student studying plate tectonics in Southern California, began experimenting with a …
December 5, 2012
Satellites can detect underground nuclear explosions
SAN FRANCISCO: If you’re looking for hints of an underground nuclear explosion, the last place you might think to look is up. But it turns out …
January 5, 2012
The rise of community remote sensing
If you ask someone involved in community remote sensing to define the emerging field, the most likely response will be a chuckle followed by …
January 5, 2012
Benchmarks: May 29, 1919: Solar eclipse "proves" relativity
On May 29, 1919, the moon’s silhouette crept slowly over the sun, bringing premature night to observers in a broad swath of the Southern …