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La distribución latitudinal de las nubes en Titán
P Rannou1, F Montmessin, F Hourdin
1Service d'Aéronomie, Institut Pierre Simon Laplace, Université de Versailles-St-Quentin, BP3, 91371 Verrières le Buisson, France. pra@aero.jussieu.fr
Resumen
El titán Titan es un titán.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Ciencias de la atmósfera Ciencias atmosféricas.
- Astrobiología Astrobiología.
Sus antecedentes:
- Observaciones recientes revelan nubes en Titán, la luna más grande de Saturno, a través de su espesa bruma.
- La espectroscopia del infrarrojo cercano y los datos del orbitador Cassini proporcionan información sobre la climatología de las nubes de Titán.
Objetivo del estudio:
- Para investigar la formación y distribución de las nubes en Titán.
- Para entender el papel de la circulación atmosférica en los patrones de nubes de Titán.
Principales métodos:
- Desarrollo de un modelo de circulación general (GCM) que incorpora la microfísica de las nubes.
- Análisis de la espectroscopia del infrarrojo cercano y las imágenes del orbitador Cassini.
Principales resultados:
- Identificación de varios tipos de nubes de etano y metano, incluidas las nubes del polo sur y las nubes templadas (alrededor de 40 ° S).
- Formaciones de nubes observadas en regiones templadas, particularmente en el hemisferio veraniego a 40°S.
- Correlación entre la ubicación de las nubes, sus frecuencias, su composición y la circulación atmosférica a gran escala.
Conclusiones:
- La circulación atmosférica a gran escala de Titán es el principal impulsor de la formación, ubicación y composición de sus nubes.
- El GCM desarrollado explica con éxito los fenómenos de nubes observados en Titán.
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