Physics – Space Physics
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979rvgsp..17.1358d&link_type=abstract
(International Union of Geodesy and Geophysics, General Assembly, 17th, Canberra, Australia, Dec. 2-15, 1979.) Reviews of Geophy
Physics
Space Physics
Celestial Geodesy, Geodetic Surveys, Measuring Instruments, Technology Assessment, Azimuth, Distance Measuring Equipment, Gravimeters, Satellite-Borne Instruments, Terrain Analysis, Very Long Base Interferometry
Scientific paper
Developments in geodetic instrumentation during 1975 through 1978 are reviewed. Distance measurement including electronic distance measuring (EDM) application and instrumentation; the improvement of astronomic latitude and longitude determinations by the development of Automated Astronomic Positioning System and an instrument capable of measuring atmospheric refraction and evaluation of the magnitude of anomalous refraction at an observing site; new techniques for astronomic azimuth determination, transfer, and monitoring, such as ring laser gyroscopes, nuclear magnetic resonance gyroscopes with optical readout, and fiber optics gyroscopes; absolute gravity measurements, relative gravity measurements with electronic readout system and a portable battery powered microprocessor used with gravimeters and gravity gradiometry are discussed. The Inertial Positioning System, an Aerial Profiling of Terrain System, the Very Long Baseline Interferometry, Satellite Laser ranging, Doppler satellite instrumentation, and radar altimeters are described.
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