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A note on the steepening of long Rossby waves

Lookup NU author(s): Professor Andrew Willmott


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An analytical solution is presented for the quasi-linear wave equation satisfied by annual and inter-annual long Rossby waves. In the case when the Ekman pumping is independent of the east-west spatial coordinate a criterion can be derived for determining when and where the waves will break. An example is presented in which the Ekman pumping has harmonic time dependence, and breaking occurs closer to the eastern boundary as the distance northward increases. This result might explain partially why Rossby wave propagation has been undetected north of 30°N in the Pacific Ocean.

Publication metadata

Author(s): Willmott AJ

Publication type: Article

Publication status: Published

Journal: Deep Sea Research Part A. Oceanographic Research Papers

Year: 1985

Volume: 32

Issue: 5

Pages: 613-617

Print publication date: 01/05/1985

Online publication date: 21/11/1984

ISSN (print): 0967-0637

ISSN (electronic): 1879-0119

Publisher: Pergamon


DOI: 10.1016/0198-0149(85)90047-0


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