Global Observations of Oceanic Rossby Waves
- 12 April 1996
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 272 (5259) , 234-238
- https://doi.org/10.1126/science.272.5259.234
Abstract
Rossby waves play a critical role in the transient adjustment of ocean circulation to changes in large-scale atmospheric forcing. The TOPEX/POSEIDON satellite altimeter has detected Rossby waves throughout much of the world ocean from sea level signals with ≲10-centimeter amplitude and ≳500-kilometer wavelength. Outside of the tropics, Rossby waves are abruptly amplified by major topographic features. Analysis of 3 years of data reveals discrepancies between observed and theoretical Rossby wave phase speeds that indicate that the standard theory for free, linear Rossby waves is an incomplete description of the observed waves.Keywords
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