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Comparación de los números de Rossby de vorticidad y curvatura
Chuanyin Wang1, Rui Xin Huang2, Dake Chen1,3
1School of Atmospheric Sciences, Sun Yat-sen University, and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China.
Fundamental research
|January 30, 2026
Resumen
El número de Rossby de curvatura mide con mayor precisión la no linealidad del flujo oceánico que el número de Rossby de vorticidad. Este hallazgo es crucial para comprender la dinámica de la circulación oceánica y los procesos no lineales.
Área de la Ciencia:
- Dinámica oceánica
- Mecánica de fluidos
- Dinámica de fluidos geofísicos
Sus antecedentes:
- Es vital evaluar la importancia del término no lineal en relación con el término de Coriolis en las ecuaciones de momento del océano.
- El número de Rossby global es insuficiente para la evaluación de la no linealidad punto por punto, lo que requiere el número de Rossby puntual.
Objetivo del estudio:
- Comparar la precisión de dos formulaciones aproximadas del número de Rossby puntual: el número de Rossby de vorticidad y el número de Rossby de curvatura.
- Determinar qué formulación es más adecuada para diagnosticar la no linealidad en la circulación oceánica.
Principales métodos:
- Análisis teórico de las formulaciones del número de Rossby.
- Análisis de datos de flujos oceánicos.
Principales resultados:
- El número de Rossby de vorticidad sobreestima la no linealidad del flujo oceánico al descuidar las variaciones espaciales de la energía cinética.
- El número de Rossby de curvatura incluye inherentemente consideraciones de energía cinética, lo que lo hace más preciso.
Conclusiones:
- El número de Rossby de curvatura es una métrica más precisa y útil para diagnosticar y comprender la no linealidad en la circulación oceánica.
- Esta comprensión mejorada ayuda a modelar y predecir mejor la dinámica oceánica.
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