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La desestratificación del río York: una interacción entre estuario y subestuario
Science (New York, N.Y.)
|June 25, 1982
Resumen
Las mareas altas de primavera causan desestratificación en el río York al empujar el agua de la bahía hacia adentro. Esta interacción entre subestuarios y estuarios es común en la Bahía de Chesapeake.
Área de la Ciencia:
- La oceanografía estuariana es una oceanografía.
- Dinámica de las costas.
- La hidrodinámica es la hidrodinámica.
Sus antecedentes:
- Los estuarios suelen exhibir un flujo de dos capas, con capas distintas de agua dulce y agua salada.
- Los subestuarios pueden experimentar dinámicas de flujo únicas influenciadas por sistemas estuarios más grandes.
Objetivo del estudio:
- Para investigar las causas de la destratificación en el río York durante las mareas altas de primavera.
- Para comprender el papel de la advección del agua de la bahía de Chesapeake en la alteración del flujo estuariano.
- Para determinar si este fenómeno es exclusivo del río York o una interacción estuarina común.
Principales métodos:
- Análisis de los patrones de flujo de los estuarios.
- Observación de la advección del agua desde la bahía de Chesapeake hacia el río York.
- Examen de los gradientes de salinidad y las fases de las corrientes de marea.
Principales resultados:
- La desestratificación en el río York es causada por la intrusión de agua menos salada de la bahía de Chesapeake durante las mareas altas de primavera.
- Esta intrusión es impulsada por un gradiente de salinidad longitudinal en la bahía y diferencias de fase en las corrientes de marea entre el río y la bahía.
- El fenómeno observado interrumpe el típico flujo estuariano de dos capas.
Conclusiones:
- La desestratificación del río York es una consecuencia directa de la advección del agua de la bahía.
- Las interacciones entre subestuario y estuario, particularmente durante las mareas altas de primavera, pueden alterar significativamente la hidrodinámica de los estuarios.
- Eventos de destratificación similares pueden ocurrir en otros subestuarios de la Bahía de Chesapeake y es probable que sean comunes en los sistemas estuarios.
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