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Seguimiento del sumidero variable del Atlántico Norte para el CO2 atmosférico.
Andrew J Watson1, Ute Schuster, Dorothee C E Bakker
1School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK. a.watson@uea.ac.uk
Science (New York, N.Y.)
|December 8, 2009
Resumen
El Océano Atlántico Norte muestra cambios significativos año tras año en la absorción de dióxido de carbono (CO2). Los buques con instrumentos midieron con precisión el flujo de CO2 en 2005, lo que permitió un mejor monitoreo del sumidero de carbono oceánico.
Área de la Ciencia:
- Oceanografía La oceanografía es la oceanografía.
- Ciencias del clima Ciencias del clima Ciencias del clima Ciencias del clima
- Biogeoquímica La biogeoquímica es la bioquímica.
Sus antecedentes:
- Los océanos actúan como un sumidero importante para el dióxido de carbono atmosférico (CO2).
- El seguimiento preciso de las tasas de absorción de CO2 oceánico en las cuencas oceánicas ha sido limitado por escasas observaciones históricas.
- Comprender las variaciones en la absorción de CO2 del océano es crucial para el modelado del cambio climático.
Objetivo del estudio:
- Investigar la variabilidad de la absorción de dióxido de carbono (CO2) en el Océano Atlántico Norte en escalas de tiempo interanuales.
- Para cuantificar el flujo anual de CO2 en el Atlántico Norte para el año 2005 con alta precisión.
- Evaluar el potencial del uso de buques comerciales instrumentados para el monitoreo de los sumideros oceánicos de CO2.
Principales métodos:
- Utilizó observaciones para demostrar una variabilidad sustancial en la absorción de CO2 en el Atlántico Norte.
- Utilizó mediciones de una red coordinada de buques comerciales instrumentados.
- Definido el flujo anual de CO2 en el Atlántico Norte para 2005 con aproximadamente un 10% de precisión.
Principales resultados:
- Se observó una variabilidad sustancial en la absorción de dióxido de carbono (CO2) del Atlántico Norte en escalas de tiempo de unos pocos años.
- El flujo anual de CO2 en el Atlántico Norte para 2005 se determinó con una precisión de aproximadamente el 10%.
- El estudio destaca la efectividad de las mediciones basadas en buques para cuantificar la absorción de CO2 oceánico.
Conclusiones:
- El Océano Atlántico Norte exhibe una significativa variabilidad interanual en su capacidad para absorber dióxido de carbono atmosférico (CO2).
- Una red coordinada de buques comerciales instrumentados proporciona un método viable para monitorear con precisión los sumideros de CO2 oceánicos.
- Este enfoque es prometedor para un mejor seguimiento del cambio de los sumideros de carbono oceánico en las cuencas oceánicas bien traficadas.
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