Ground-based

Ground-based and space telescopes have obtained images of the asteroid, but have not been able to see much detail on its surface.

NASA Probe Returns First Images of Asteroid Vesta 2011

Ground-based and space telescopes have obtained images of the asteroid, but have not been able to see much detail on its surface.

NASA Probe Returns First Images of Asteroid Vesta 2011

Ground-based lasers could revolutionize air defense, and a new generation of solid-state lasers may be small enough for airborne platforms.

Ike was right: Defense spending must be cut David Ignatius 2011

Ground-based observing, requiring some facility support, is essential to the robotic exploration of the solar system.

Weiler Seeks to Cut NASA Access to Keck Observatory - NASA Watch 2009

Ground-based monitoring will continue to play an important role, but space-based surveillance is the way of the future.

Timothy A. Ridout: Space-Monitoring Satellite Will Enhance Global Security Timothy A. Ridout 2010

Ground-based Wide-area Master Stations then transmit corrected GPS signal information to ground-based Ground Uplink Stations, that then transmit the corrected GPS signal information to Geostationary Satellites.

06 « November « 2008 « Niqnaq 2008

Ground-based Wide-area Master Stations then transmit corrected GPS signal information to ground-based Ground Uplink Stations, that then transmit the corrected GPS signal information to Geostationary Satellites.

flight of the bumble planes, revisited 2008

Ground-based observatories, which detect gamma rays thousands of times more energetic than the LAT was designed to see, have previously detected Cas A.

Sources of Cosmic Rays Found? Fermi Telescope Closes In | Universe Today 2010

Ground-based and satellite-borne instruments are used to monitor the concentrations and vertical distributions of stratospheric ozone.

Long-term change and variability in ozone levels in the Arctic 2009

Ground-based measurements of UV radiation levels are conducted in all arctic countries.

Ozone and Ultraviolet Radiation in the Arctic 2009