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Las emisiones de metano de la explosión del cañón de Aliso en 2015 en Los Ángeles, CA
S Conley1, G Franco2, I Faloona3
1Scientific Aviation, 3335 Airport Road, Boulder, CO 80301, USA. Department of Land, Air, and Water Resources, University of California-Davis, Davis, CA 95616, USA.
Science (New York, N.Y.)
|February 27, 2016
Resumen
Una fuga masiva de gas natural de las instalaciones de Aliso Canyon en California liberó 97.100 toneladas métricas de metano. Este único evento tuvo un impacto significativo en los esfuerzos de mitigación del cambio climático al duplicar las emisiones de metano de la cuenca de Los Ángeles.
Área de la Ciencia:
- Ciencias del medio ambiente
- Química de la atmósfera
- Investigación sobre el cambio climático
Sus antecedentes:
- Los fallos de un solo punto en la infraestructura de gas natural suponen riesgos significativos para la mitigación del cambio climático.
- La explosión de Aliso Canyon el 23 de octubre de 2015, causó una liberación sustancial de gas natural.
Objetivo del estudio:
- Para cuantificar las tasas de emisión de metano y etano de la explosión del Cañón Aliso.
- Evaluar el impacto de la explosión en las emisiones regionales de gases de efecto invernadero.
Principales métodos:
- Análisis de los datos sobre el metano y el etano recogidos en los vuelos de los aviones de investigación.
- Utilizando docenas de trancectos de pluma durante un período de varios meses.
- Utilizando mediciones atmosféricas desde noviembre de 2015 hasta febrero de 2016.
Principales resultados:
- Las tasas de fuga atmosférica alcanzaron hasta 60 toneladas métricas de metano y 4,5 toneladas métricas de etano por hora.
- El pico de emisión de la explosión duplicó las emisiones de metano de toda la cuenca de Los Ángeles.
- Un total de 97.100 toneladas métricas de metano fueron liberadas a la atmósfera.
Conclusiones:
- La explosión del cañón Aliso pone de relieve la vulnerabilidad de la infraestructura de gas natural y su potencial para un grave impacto ambiental.
- Tales eventos subrayan la necesidad de estrategias sólidas de control de las emisiones de metano y la integridad de la infraestructura.
- La cuantificación precisa de las fugas a gran escala es crucial para comprender y abordar los impactos del cambio climático.
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