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Dinámica de la atmósfera. Producción de trabajo restringida del motor de calor atmosférico húmedo en un clima de
F Laliberté1, J Zika2, L Mudryk3
1Department of Physics, University of Toronto, Ontario, Canada. frederic.laliberte@utoronto.ca.
Science (New York, N.Y.)
|January 31, 2015
Resumen
La Tierra La Tierra La Tierra La Tierra La Tierra
Área de la Ciencia:
- Ciencias de la atmósfera ciencia atmosférica.
- Ciencias del clima Ciencias del clima Ciencias del clima
- La termodinámica es la termodinámica.
Sus antecedentes:
- La radiación solar y el intercambio de calor superficial impulsan el motor de calor atmosférico de la Tierra, redistribuyendo el calor y la humedad a nivel mundial.
- Comprender la producción de trabajo de este motor es crucial para la investigación del cambio climático.
Objetivo del estudio:
- Para investigar la salida de trabajo del motor térmico atmosférico.
- Para comparar la producción de trabajo del motor con un ciclo de Carnot equivalente.
- Para determinar las limitaciones en el trabajo del motor impuestas por el ciclo hidrológico.
Principales métodos:
- Los diagramas termodinámicos se calcularon utilizando datos de observación reanalizados.
- Se utilizó una simulación de modelo climático que incorpora el forzamiento antropogénico.
Principales resultados:
- La salida de trabajo del motor térmico atmosférico es consistentemente menor que la de un ciclo de Carnot.
- La producción de trabajo del motor está limitada por la energía requerida para sostener el ciclo hidrológico.
- Las simulaciones climáticas muestran que el ciclo hidrológico se intensifica más rápido que el ciclo de Carnot.
Conclusiones:
- La intensificación del ciclo hidrológico en un clima más cálido puede reducir la capacidad de trabajo del motor térmico atmosférico.
- Este hallazgo tiene implicaciones para la comprensión de las dinámicas climáticas futuras y el equilibrio energético.
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