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Un intenso chorro estratosférico en Júpiter.
F M Flasar1, V G Kunde, R K Achterberg
1NASA/Goddard Space Flight Center, Code 693, Greenbelt, Maryland 20771, USA. f.m.flasar@nasa.gov
Nature
|January 9, 2004
Resumen
Júpiter Júpiter Júpiter es el nombre de Júpiter.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Ciencias de la atmósfera Ciencias atmosféricas.
- Ingeniería Aeroespacial Ingeniería Aeroespacial.
Sus antecedentes:
- La estratosfera de la Tierra exhibe una oscilación casi bianual (QBO) que afecta el clima global.
- La estratosfera de Júpiter puede tener oscilaciones de temperatura similares, pero los datos son limitados.
- Estudios previos de Júpiter carecían de resolución vertical y datos de velocidad del viento.
Objetivo del estudio:
- Para mapear las temperaturas estratosféricas y los vientos de Júpiter con alta resolución espacial.
- Para investigar las oscilaciones atmosféricas en Júpiter.
- Para comparar la dinámica atmosférica de Júpiter con la QBO de la Tierra.
Principales métodos:
- Mediciones de naves espaciales de los espectros infrarrojos de la estratosfera de Júpiter.
- Análisis de datos de temperatura y velocidad del viento.
- Cartografía espacial de alta resolución de los fenómenos atmosféricos.
Principales resultados:
- Descubrimiento de un intenso chorro ecuatorial de gran altitud (aprox. 140 m/s). también conocido como 140 m/s.
- Identificación de una oscilación casi cuadrienal en la estructura del chorro ecuatorial.
- Observación de la actividad de las ondas estratosféricas análoga a la de la Tierra.
- Mapeo de la penetración de los puntos calientes polares en la estratosfera.
Conclusiones:
- La estratosfera de Júpiter exhibe dinámicas complejas, que incluyen oscilaciones y actividad de ondas similares a la QBO de la Tierra.
- Los datos de alta resolución revelan estructuras e interacciones detalladas de los chorros atmosféricos.
- El entorno de plasma influye significativamente en la atmósfera superior y la estratosfera de Júpiter.
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