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Con la excepción de los fuertes flujos cercanos al fondo en la subida continental de Nueva Escocia
Science (New York, N.Y.)
|August 21, 1981
Resumen
Se midieron corrientes oceánicas profundas de alta velocidad frente a Nueva Escocia, lo que confirma un flujo profundo hacia el ecuador del agua de fondo antártica. Este descubrimiento valida una hipótesis anterior de un segundo sistema de corriente de frontera occidental más profundo.
Área de la Ciencia:
- Oceanografía La oceanografía es la oceanografía.
- Dinámica de la circulación en aguas profundas.
Sus antecedentes:
- Pruebas geológicas anteriores sugirieron una corriente de frontera occidental profunda.
- Existieron mediciones directas limitadas para las características de flujo de aguas profundas en esta región.
Objetivo del estudio:
- Para medir las velocidades de las corrientes oceánicas profundas y los orígenes de las masas de agua.
- Confirmar la existencia y las características de un profundo flujo de frontera occidental.
Principales métodos:
- Mediciones de velocidad de corriente in situ utilizando sensores avanzados.
- Análisis de silicatos para determinar la procedencia de la masa de agua.
Principales resultados:
- Se han registrado velocidades excepcionalmente altas de las corrientes de aguas profundas (hasta 73 cm/s).
- Identificó el flujo profundo como agua de fondo predominantemente de origen sur (Antártida).
- Confirmado un segundo flujo de frontera occidental más profundo.
Conclusiones:
- El flujo profundo hacia el ecuador es una característica significativa de la circulación del límite occidental.
- Las mediciones directas validan las hipótesis basadas en datos geológicos.
- Este flujo juega un papel crucial en el transporte de masa de agua de los océanos profundos.
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