S-CHLOROPHYLL SQUIRTS IN THE CHILEAN COAST: A SEAWIFS PERSPECTIVE
Squirts can be defined as one-way jets, transporting coastally upwelled water to the deep ocean and terminating in a counterrotating vortex pair. These mesoscale oceanographic structures can export coastal biological production up to 200 km offshore. We describe, based on the analysis of SeaWIFS ima...
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| Autores principales: | , |
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| Lenguaje: | English |
| Publicado: |
Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
2004
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| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300012 |
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| Sumario: | Squirts can be defined as one-way jets, transporting coastally upwelled water to the deep ocean and terminating in a counterrotating vortex pair. These mesoscale oceanographic structures can export coastal biological production up to 200 km offshore. We describe, based on the analysis of SeaWIFS images, a squirt located in the northern Chilean coast (30° S). Our results show that the spatial structure of the velocity field, and the hammerhead shape, agree with previous conceptual models. We used the circulation data, resulting from feature-tracking analysis, to estimate the offshore export of coastal carbon production. We conclude that squirts represent a net carbon exporting mechanism accounting for 5% to 12% of coastal carbon production |
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