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Observaciones oceanográficas del calentamiento de 1982 del Pacífico oriental tropical
Science (New York, N.Y.)
|September 16, 1983
Resumen
El episodio cálido de 1982 causó cambios significativos en el Pacífico tropical oriental. Las corrientes oceánicas se invirtieron, las temperaturas de la superficie del mar aumentaron y los niveles del mar aumentaron, lo que indica un evento climático importante.
Área de la Ciencia:
- Oceanografía La oceanografía es la oceanografía.
- Ciencias del clima Ciencias del clima Ciencias del clima Ciencias del clima
- Meteorología Tropical.
Sus antecedentes:
- El Pacífico tropical oriental es una región clave para la dinámica climática global.
- Comprender los rápidos cambios climáticos es crucial para predecir los cambios futuros.
Objetivo del estudio:
- Para documentar los cambios oceánicos durante el inicio del episodio cálido de 1982.
- Para analizar la extensión espacial y temporal de estas anomalías.
Principales métodos:
- Se utilizaron datos de medidores de corriente amarrados.
- Analizó los registros del nivel del mar.
- Incorpora mediciones hidrográficas y de desplazamiento de superficie.
Principales resultados:
- Inversión observada del flujo cercano a la superficie hacia el este a 0°, 110°W en agosto.
- Se registró un aumento de 5 ° C en la temperatura de la superficie del mar ecuatorial por encima de la media mensual para octubre.
- Se midió un aumento del nivel del mar de 22 cm en las Islas Galápagos.
- Documentó un desplazamiento hacia abajo de 50 a 70 metros de la termoclina a lo largo del ecuador y la costa sudamericana.
Conclusiones:
- El inicio del episodio cálido de 1982 se caracterizó por cambios oceánicos dramáticos y generalizados en el Pacífico tropical oriental.
- Estos hallazgos resaltan la sensibilidad de la región a la variabilidad climática.
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