Read Full Article    Cited by

GEOPHYSICAL RESEARCH LETTERS, VOL. 24, NO. 5, PAGES 543–546, 1997

The Flux of Tidal Energy across Latitude 60°S

Richard D. Ray

Hughes STX, NASA Goddard Space Flight Center, Greenbelt, Maryland

Gary D. Egbert

College of Oceanic & Atmospheric Sciences, Oregon State University

Abstract

How and where the ocean tides dissipate their energy are longstanding questions with both oceanographic and astronomical implications. Two decades ago, Doake suggested that flexing of Antarctic ice shelves by the underlying ocean tide is an important energy sink, perhaps accounting for over half the global dissipation rate. Observational constraints on Antarctic dissipation have been scarce. Here two new and complementary ocean-tide models, both derived from Topex/Poseidon satellite altimeter measurements, are used to determine the flux of tidal energy across 60°S toward the Antarctic coastline. Our results show relatively small fluxes and they therefore rule out Doake’s suggestion: Antarctica is an insignificant sink in the global tidal energy budget.

Received 11 December 1996; accepted 3 February 1997.

Read Full Article    Cited by

Citation: Ray, R. D., and G. D. Egbert (1997), The Flux of Tidal Energy across Latitude 60°S, Geophys. Res. Lett., 24(5), 543–546.

Copyright 1997 by the American Geophysical Union.