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Variación del nivel del mar como indicador del volumen actual de transporte de la Florida: comparaciones con
Science (New York, N.Y.)
|January 18, 1985
Resumen
El transporte de volumen actual es factible utilizando datos combinados de nivel del mar y presión. Las observaciones fácilmente obtenidas pueden rastrear con precisión las fluctuaciones diarias en el Estrecho de Florida.
Área de la Ciencia:
- Oceanografía La oceanografía es la oceanografía.
- La dinámica de fluidos es la dinámica de fluidos.
- La geofísica es la geofísica.
Sus antecedentes:
- El monitoreo preciso del transporte de corrientes oceánicas es crucial para comprender los procesos oceánicos.
- La Corriente de la Florida es un componente importante de la Circulación Meridional de Inversión del Atlántico.
- Las mediciones directas del transporte de volúmenes consumen muchos recursos.
Objetivo del estudio:
- Evaluar la eficacia del uso de datos sobre el nivel del mar y la presión del fondo para monitorear el transporte de volumen de la Corriente de la Florida.
- Desarrollar un método rentable para el seguimiento de las fluctuaciones diarias del volumen de transporte.
- Para correlacionar las mediciones hidrográficas y geofísicas con las observaciones directas del transporte.
Principales métodos:
- Análisis de correlación entre el mareómetro y los datos de presión de fondo con observaciones directas de transporte de volumen.
- Utilizó datos del nivel del mar de Miami, Florida, y Cat Cay, Bahamas.
- Empleó mediciones de presión de fondo desde Júpiter, Florida, y Memory Rock, Bahamas.
- Regresión multivariada lineal aplicada que incorpora datos de presión de fondo, tiempo y cable submarino.
Principales resultados:
- La presión de fondo de Júpiter mostró una alta correlación (r2 = 0,93) con el transporte.
- Los datos ajustados del nivel del mar de Miami arrojaron una correlación de r2 = 0.74.
- Un modelo de regresión multivariado que combina múltiples fuentes de datos logró la correlación más alta (r2 = 0,94).
- Los errores estándar para la estimación del transporte oscilaron entre +/- 1.1 y +/- 1.9 x 10^6 m3/s.
Conclusiones:
- Las mediciones del nivel del mar y la presión del fondo son sustitutos efectivos para el monitoreo del transporte de la Corriente de Florida.
- La combinación de observaciones fácilmente obtenibles proporciona una precisión suficiente para el monitoreo diario de la fluctuación del transporte.
- Este enfoque ofrece una alternativa práctica a las mediciones directas de transporte intensivas en mano de obra.
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