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El vórtice polar sur de Venus revela el proceso de precesión de la circulación
1Centro de Astronomia e Astrofísica da Universidade de Lisboa, Observatório Astronómico de Lisboa, 1349-018 Lisboa, Portugal. dluz@oal.ul.pt
Science (New York, N.Y.)
|April 9, 2011
Resumen
Venus Venus Venus es el nombre de Venus.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Ciencias de la atmósfera Ciencias atmosféricas.
- Venus Ciencia Venus Ciencia
Sus antecedentes:
- La misión Venus Express observó un vórtice brillante y variable en el polo sur de Venus.
- Este vórtice comparte similitudes con el previamente observado en el polo norte del planeta.
Objetivo del estudio:
- Para analizar la estructura interna y la dinámica del vórtice polar sur en Venus.
- Para entender la circulación atmosférica en el polo sur de Venus.
Principales métodos:
- Se utilizaron mediciones infrarrojas de alta resolución de los vientos polares.
- Se emplearon datos del instrumento VIRTIS (Visible and Infrared Thermal Imaging Spectrometer) del Venus Express.
Principales resultados:
- El vórtice polar sur exhibe una estructura interna que varía constantemente.
- El centro del vórtice está desplazado ~3 grados de latitud desde el polo sur geográfico.
- El vórtice se desplaza alrededor del polo con un período de 5 a 10 días terrestres.
Conclusiones:
- Las dinámicas de vórtice observadas sugieren una precesión asimétrica y variable.
- Esto indica patrones complejos de circulación atmosférica en el polo sur de Venus en relación con el eje planetario.
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