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AGU: Geophysical Research Letters

 

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  • Geodesy and Gravity: Tides—Earth

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 22, NO. 16, PP. 2175-2178, 1995
doi:10.1029/95GL01809

Geometrical determination of the Love Number h 2 at four tidal frequencies

R. D. Ray

NASA/GSFC, Code 926, Greenbelt, MD, 20771

S. Bettadpur

University of Texas, Center for Space Research, Austin, TX 78712–1085

R. J. Eanes

University of Texas, Center for Space Research, Austin, TX 78712–1085

E. J. O. Schrama

Faculty of Geodetic Engineering, Delft University of Technology, 2629 JA Delft, The Netherlands

The Love number h 2 is determined at the M2, N2, O1, and K1 frequencies by combining satellite altimetry with in situ ocean tidal measurements. Topex/Poseidon altimetry is used to measure the (ocean + earth) tide, while gauges at 114 island and ocean‐bottom sites determine the ocean tide; the difference sets constraints on h 2. Our h 2 standard errors are somewhat larger than recent VLBI estimates, but they clearly delineate the resonance in K1 at the 6‐σ level.

Received 29 December 1994; accepted 2 May 1995; .

Citation: Ray, R. D., S. Bettadpur, R. J. Eanes, and E. J. O. Schrama (1995), Geometrical determination of the Love Number h 2 at four tidal frequencies, Geophys. Res. Lett., 22(16), 2175–2178, doi:10.1029/95GL01809.

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