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La circulación global de la atmósfera superior de Marte

M Benna^1,2, S W Bougher³, Y Lee^4,2

¹Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, USA. mehdi.benna@nasa.gov.

Science (New York, N.Y.)

|December 14, 2019

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Marte también.

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Área de la Ciencia:

Ciencias planetarias
Ciencias atmosféricas
Aeronomía

Sus antecedentes:

La termosfera marciana actúa como una interfaz crítica para la pérdida volátil atmosférica en el espacio.
La circulación global, impulsada por la energía solar, gobierna la estructura y la dinámica de la termosfera.

Objetivo del estudio:

Para mapear los patrones de circulación global dentro de la termosfera marciana.
Para entender la influencia de la redistribución de la energía solar en la dinámica atmosférica de Marte.

Principales métodos:

Utilizó datos de la nave espacial de la atmósfera y la evolución volátil de Marte (MAVEN).
Se han medido patrones de viento neutro en la termosfera marciana.

Principales resultados:

Reveló patrones de circulación más simples y más persistentes en comparación con la termosfera de la Tierra.
Se observó una fuerte correlación entre los patrones de viento y la topografía marciana.
Se han identificado las ondas de gravedad orográficas como un factor importante que influye en la circulación.

Conclusiones:

La circulación termosférica marciana es menos compleja y establemente más estable que la de la Tierra.
La topografía juega un papel crucial en la configuración de la dinámica atmosférica a través de las ondas de gravedad.
Los datos de MAVEN proporcionan una visión sin precedentes de los procesos de escape atmosférico de Marte.