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Aumento simulado de la intensidad de los huracanes en un clima calentado por CO2
1Geophysical Fluid Dynamics Laboratory/National Oceanic and Atmospheric Administration, Post Office Box 308, Princeton, NJ 08542, USA.
Resumen
El calentamiento global inducido por los gases de efecto invernadero puede intensificar los huracanes. Las simulaciones de calentamiento climático muestran huracanes más fuertes con velocidades de viento más altas y presión central más baja, lo que plantea mayores riesgos.
Área de la Ciencia:
- Ciencias de la atmósfera ciencia atmosférica.
- Modelado del clima en el modelo climático.
- Meteorología Meteorología.
Sus antecedentes:
- Los huracanes causan importantes daños a la propiedad y pérdidas de vidas.
- Comprender el impacto del calentamiento global en la intensidad de los huracanes es crucial.
Objetivo del estudio:
- Investigar cómo el calentamiento climático afecta la intensidad de los huracanes.
- Para simular cambios en las características de los huracanes en condiciones de alto CO2.
Principales métodos:
- Utilizó un modelo regional de predicción de huracanes de alta resolución.
- Comparó 51 casos de tormentas en el Pacífico occidental bajo las condiciones climáticas actuales y altas en CO2.
- Incorporó las condiciones iniciales a gran escala de un modelo climático global.
Principales resultados:
- Los huracanes simulados mostraron una mayor intensidad con un aumento de la temperatura de la superficie del mar de 2,2 ° C.
- Las velocidades del viento aumentaron en 3-7 m/s (5-12 por ciento).
- La presión de la superficie central disminuyó entre 7 y 20 milibares.
Conclusiones:
- Se prevé que el calentamiento climático intensifique los huracanes.
- Estas tormentas intensificadas presentan mayores riesgos para la propiedad y la vida humana.
- Se justifica una mayor investigación sobre los impactos del cambio climático en los eventos climáticos extremos.
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