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Aumento del cloruro de hidrógeno estratosférico en la nube de El Chichón
Science (New York, N.Y.)
|October 12, 1984
Resumen
Las erupciones del volcán El Chichón aumentaron significativamente el cloruro de hidrógeno (HCl) estratosférico en un 40% en 1982. Este estudio no observó un aumento similar en los niveles de fluoruro de hidrógeno (HF) después del evento volcánico.
Área de la Ciencia:
- Química de la atmósfera química de la atmósfera
- Volcanología Volcanología.
- La espectroscopia es una técnica de espectroscopia.
Sus antecedentes:
- El volcán El Chichón entró en erupción en marzo-abril de 1982, inyectando aerosoles en la estratosfera.
- Las erupciones volcánicas pueden alterar la composición atmosférica, incluidas las concentraciones de halógenos.
Objetivo del estudio:
- Para medir la cantidad total en columna de cloruro de hidrógeno (HCl) y fluoruro de hidrógeno (HF) antes y después de las erupciones de El Chichón.
- Para evaluar el impacto de los aerosoles volcánicos en los niveles estratosféricos de HCl y HF.
Principales métodos:
- Las observaciones espectroscópicas se llevaron a cabo en el rango de latitud 20-40 grados N.
- Las mediciones se tomaron antes y 3-6 meses después de las erupciones de El Chichón.
- El análisis de datos explicó un aumento secular global anual del 5% en HCl.
Principales resultados:
- Se observó un aumento significativo de aproximadamente el 40% en la cantidad total de cloruro de hidrógeno (HCl) en la columna después de las erupciones.
- Este aumento de HCl se observó en la región afectada por los aerosoles volcánicos.
- No se detectó un aumento comparable en las cantidades de fluoruro de hidrógeno (HF) en la columna.
Conclusiones:
- La nube de aerosoles volcánicos de El Chichón aumentó significativamente las concentraciones estratosféricas de cloruro de hidrógeno (HCl).
- Los aerosoles volcánicos parecen desempeñar un papel en la liberación o transporte de HCl en la estratosfera.
- Las concentraciones de fluoruro de hidrógeno (HF) no se vieron afectadas de manera similar por el evento volcánico.
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