Mathematics – Logic
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10...67a&link_type=abstract
Geophysical Research Letters, vol. 10, Jan. 1983, p. 67-70.
Mathematics
Logic
4
Earth Observations (From Space), Plates (Tectonics), Satellite Observation, Tectonics, Doppler Radar, Satellite-Borne Radar
Scientific paper
About 50% of the Doppler observations made on a Navy Navigation Satellite over a nine year period were analyzed to determine the motion of eight sites on the North American plate and 12 sites on seven other plates. The computed plate motions were not statistically significant compared with the standard errors of measurement of 1 to 5 cm/yr except for the Australian plate, European plate and Pacific plate. The measured motions of these plates are about twice those inferred from geologic records, but are in the proper direction. Processing of the balance of the data on one satellite over the nine year time interval would improve the accuracy of the determination by about 60%, improving the possibility of detecting additional statistically significant motions. Unreasonable altitude changes at most sites are probably due to neglected higher order ionospheric refraction effects on the observations.
Anderle Richard J.
Malyevac C. A.
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