Physics
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91..453w&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Jan. 10, 1986, p. 453-461.
Physics
12
Geodetic Accuracy, Geoids, Oceanography, Satellite Observation, Topography, Error Analysis, Ocean Surface, Radio Altimeters, Satellite Orbits
Scientific paper
Joint determination of the geoid and permanent dynamic sea topography is demonstrated by simulation from direct use of satellite altimetry. The separation is feasible because of the disparities between the error spectra of the geoid and its unique perturbative effects as seen on the orbit. The solution for the components of the permanent topography from 14 cm Seasat altimetry promises to yield accurate results down to half wavelengths of about 1000 km. Present discrimination of this surface from disjoint satellite altimeter results appears to be at a scale near 4000 km. The radial effects of uncertainties in the M2 ocean tide on the Seasat orbit and altimeter measurements will probably be only a minor contaminant of the solution.
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