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Comentario sobre "Las interacciones entre los remolinos y el viento estimulan extraordinarias floraciones de plancton

Amala Mahadevan¹, Leif N Thomas, Amit Tandon

¹Department of Earth Sciences, Boston University, Boston, MA 02215, USA.

Science (New York, N.Y.)

|April 26, 2008

Resumen

Los procesos oceánicos a submesoscala, no las interacciones entre remolinos y viento, probablemente alimentan las floraciones de plancton en el medio del océano al mejorar el suministro de nutrientes. Estos procesos periféricos crean un movimiento vertical más fuerte del agua, impulsando el flujo de nutrientes en los remolinos oceánicos.

Área de la Ciencia:

Oceanografía La oceanografía es la oceanografía.
Ecología marina Ecología marina.
Biogeoquímica La biogeoquímica es la bioquímica.

Sus antecedentes:

Investigaciones anteriores sugirieron que las interacciones entre remolinos y viento impulsan el flujo de nutrientes en los remolinos de agua de modo modo, apoyando grandes floraciones de plancton.
Este estudio investiga mecanismos alternativos para el suministro de nutrientes a los remolinos oceánicos.

Objetivo del estudio:

Para reevaluar los principales impulsores del suministro de nutrientes a los remolinos oceánicos.
Desafiar el papel propuesto de las interacciones de remolinos y viento en el flujo de nutrientes.
Para resaltar la importancia de los procesos de submesoscala en el ciclo de nutrientes marinos.

Principales métodos:

Análisis de datos oceanográficos centrados en la dinámica de los remolinos.
Comparación de magnitudes de velocidad vertical de diferentes procesos oceánicos.
Evaluación teórica de los mecanismos de transferencia de energía en los remolinos.

Principales resultados:

Los procesos a submesoscala, que actúan en las periferias de los remolinos, generan velocidades verticales sustanciales.
Estas velocidades son significativamente mayores que las inducidas por las interacciones entre remolinos y viento.
El suministro de nutrientes a los remolinos está más fuertemente influenciado por la dinámica submesoscala.

Conclusiones:

Los procesos a submesoscala son el mecanismo dominante para el suministro de nutrientes a los remolinos oceánicos.
El impacto de las interacciones de remolinos y viento en el flujo vertical de nutrientes es probablemente sobreestimado.
Comprender la dinámica de la submesoscala es crucial para predecir la formación de la floración del plancton en el océano medio.

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