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Las características del polo sur en Venus son similares a las que se encuentran cerca del polo norte
G Piccioni1, P Drossart, A Sanchez-Lavega
1INAF-IASF (Istituto di Astrofisica Spaziale e Fisica Cosmica), Rome, Italy. Giuseppe.piccioni@iasf-roma.inaf.it
Nature
|November 30, 2007
Resumen
Venus Venus Venus es el nombre de Venus.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Ciencias de la atmósfera Ciencias atmosféricas.
- Ciencia venusiana La ciencia venusiana es la ciencia venusiana.
Sus antecedentes:
- Venus posee una atmósfera masiva de dióxido de carbono y nubes de ácido sulfúrico.
- Misiones anteriores identificaron un dipolo único y una característica de cuello frío en el polo norte de Venus.
- La simetría de la circulación atmosférica global de Venus, particularmente en los polos, seguía siendo una cuestión abierta.
Objetivo del estudio:
- Para investigar la dinámica atmosférica en el polo sur de Venus.
- Para determinar si una característica de dipolo, similar a la del polo norte, existe en el polo sur.
- Para caracterizar la composición y estructura de las nubes polares del sur.
Principales métodos:
- Observaciones infrarrojas de la región polar sur de Venus.
- Análisis de la morfología y rotación de las nubes.
- Análisis espectroscópico de la composición de las nubes.
Principales resultados:
- Las observaciones revelan una característica de nube dipolo en el polo sur, análoga a la del polo norte.
- El vórtice polar sur exhibe una morfología de nubes similar a la del norte, pero con una rotación más rápida.
- La composición de las nubes es consistente con el ácido sulfúrico, y el vórtice puede extenderse a altitudes más bajas.
Conclusiones:
- La circulación atmosférica polar de Venus es en gran medida simétrica, con características de dipolo similares en ambos polos.
- El vórtice polar sur es una estructura atmosférica significativa, que potencialmente puede llegar hasta las profundidades de la atmósfera.
- El ácido sulfúrico es el componente principal de las nubes en ambas regiones polares.
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