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El campo de temperatura de Saturno a partir de imágenes de alta resolución en el infrarrojo medio
G S Orton1, P A Yanamandra-Fisher
1Jet Propulsion Laboratory, MS 169-237, 4800 Oak Grove Drive, Pasadena, CA 91109, USA.
Science (New York, N.Y.)
|February 5, 2005
Resumen
Saturno Saturno es Saturno.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La astronomía es la astronomía.
- Física de la atmósfera Física de la atmósfera
Sus antecedentes:
- La dinámica atmosférica y la estructura térmica de Saturno son fundamentales para comprender los planetas gigantes gaseosos.
- Las observaciones anteriores proporcionaron una resolución limitada de las características térmicas de Saturno.
Objetivo del estudio:
- Para investigar la estructura térmica de la atmósfera de Saturno utilizando imágenes infrarrojas.
- Para correlacionar la temperatura atmosférica con las características visibles de las nubes.
Principales métodos:
- Imágenes infrarrojas de Saturno usando el Telescopio Keck I.
- Análisis de la emisión térmica entre 8 y 24,5 micrómetros.
- La resolución es de aproximadamente 3000 kilómetros.
Principales resultados:
- Se observaron distintas bandas de temperatura zonal en la atmósfera de Saturno.
- Se encontró una correlación mínima entre las bandas de temperatura y la reflectividad de las nubes visibles.
- Se detectaron fuertes oscilaciones de temperatura zonal de 100 milibares cerca de 32 grados de latitud sur.
- Identificó un cálido casquete polar sur y un punto caliente compacto cerca del Polo Sur.
Conclusiones:
- La distribución de la temperatura atmosférica de Saturno es compleja y no está impulsada únicamente por los patrones de nubes visibles.
- Regiones específicas, como el Polo Sur, exhiben características térmicas únicas que requieren mayor investigación.
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