Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia

doi:10.11978/j.issn.1009-5470.2009.05.006

热带海洋学报 ›› 2009, Vol. 28 ›› Issue (5): 6-10.doi: 10.11978/j.issn.1009-5470.2009.05.006cstr: 32234.14.j.issn.1009-5470.2009.05.006

Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia

冯明

CSIRO Marine & Atmospheric Research, Floreat, Western Australia, Australia

收稿日期:2009-04-08 修回日期:2009-09-07 出版日期:2009-11-10 发布日期:2009-10-10

Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia

FENG Ming

CSIRO Marine & Atmospheric Research, Floreat, Western Australia, Australia

Received:2009-04-08 Revised:2009-09-07 Online:2009-11-10 Published:2009-10-10

摘要/Abstract

摘要：

Along the downwelling coast off Western Australia, late-autumn/early-winter chlorophyll a blooms are observed on the continental shelf south of Shark Bay (26°S), in contrast with summer blooms in the north. The late-autumn/early-winter blooms are in phase with seasonal strengthening of the Leeuwin Current and its eddy field. Anticyclonic eddies entrain the high phytoplankton biomass waters from the shelf and transport offshore into the oligotrophic, subtropical marine environment, as revealed by coalescing the finite-size Lyapunov exponent (FSLE) of the surface geostrophic flow field and the satellite chlorophyll a images.

关键词: Leeuwin Current, mesoscale eddies, chlorophyll, cross-shelf exchange, geostrophic current, finite-size Lyapunov exponent

Abstract:

Key words: Leeuwin Current, mesoscale eddies, chlorophyll, cross-shelf exchange, geostrophic current, finite-size Lyapunov exponent

中图分类号:

P731

冯明 . Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia[J]. 热带海洋学报, 2009, 28(5): 6-10.

FENG Ming. Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia[J]. Journal of Tropical Oceanography, 2009, 28(5): 6-10.

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Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia

Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia

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