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Los grupos de ciclones que rodean los polos de Júpiter
Nature
|March 9, 2018
Resumen
Las regiones polares de Júpiter exhiben patrones poligonales únicos de grandes ciclones, a diferencia de cualquier cosa vista en otros planetas. Estos ciclones persistentes y no fusionados desafían los modelos actuales de la dinámica atmosférica planetaria.
Área de la Ciencia:
- Ciencias planetarias
- Dinámica atmosférica
- Mecánica de fluidos
Sus antecedentes:
- Las latitudes más bajas de Júpiter presentan zonas y cinturones axisimétricos.
- La transición de las latitudes más altas a la actividad ciclónica generalizada.
- Las misiones anteriores tenían una caracterización limitada de las regiones polares debido a las limitaciones de la trayectoria.
Objetivo del estudio:
- Para caracterizar los sistemas climáticos polares no observados anteriormente de Júpiter.
- Para investigar los patrones ciclónicos únicos en los polos de Júpiter.
Principales métodos:
- Análisis de imágenes visibles e infrarrojas de las órbitas polares de la nave espacial Juno.
- Análisis de imágenes en lapso de tiempo en intervalos de 20 minutos a 4 horas para establecer la circulación ciclónica.
Principales resultados:
- Descubrimiento de patrones poligonales persistentes de grandes ciclones en ambos polos de Júpiter.
- Se observaron ocho ciclones circumpolares alrededor de un solo ciclón polar en el norte.
- Se observaron cinco ciclones circumpolares alrededor de un solo ciclón polar en el sur.
Conclusiones:
- Los ciclones polares de Júpiter forman configuraciones sin precedentes, que difieren de otras características planetarias conocidas.
- La persistencia y la configuración de estos ciclones presentan un nuevo desafío para comprender la dinámica atmosférica planetaria y el efecto Coriolis β.
- Las vías evolutivas y el comportamiento de no fusión de estos ciclones polares siguen siendo desconocidos.
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