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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
Mejora del calentamiento troposférico de latitudes medias en mediciones satelitales
Qiang Fu1, Celeste M Johanson, John M Wallace
1Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195, USA. qfu@atmos.washington.edu
Science (New York, N.Y.)
|May 27, 2006
Resumen
Los datos satelitales revelan un aumento del calentamiento troposférico y el enfriamiento estratosférico en las latitudes medias de 1979-2005. Este patrón sugiere una ampliación de la circulación tropical y los desplazamientos hacia los polos en las corrientes de chorro.
Área de la Ciencia:
- Ciencias de la atmósfera Ciencias atmosféricas.
- Ciencias del clima Ciencias del clima Ciencias del clima Ciencias del clima
- La detección remota con sensores.
Sus antecedentes:
- Comprender las tendencias de temperatura a largo plazo en la troposfera y la estratosfera es crucial para la investigación del cambio climático.
- Las observaciones por satélite proporcionan una perspectiva global de los cambios atmosféricos.
Objetivo del estudio:
- Analizar la distribución espacial de las tendencias de temperatura en la troposfera y la estratosfera entre 1979 y 2005.
- Para identificar patrones indicativos de cambios en la circulación atmosférica.
Principales métodos:
- Se utilizaron datos de radiación de unidades de sondeo de microondas (MSU) transmitidas por satélite.
- Aplicó algoritmos avanzados de recuperación para procesar los datos de MSU.
- Se analizaron las tendencias de temperatura durante un período de 27 años (1979-2005).
Principales resultados:
- Se observó un aumento del calentamiento troposférico y el enfriamiento estratosférico en el cinturón de 15 a 45 grados de latitud en ambos hemisferios.
- Identificó un patrón espacial consistente con una ampliación de la circulación tropical.
- Se detectó un desplazamiento hacia los polos en las corrientes de chorro troposféricas y las zonas secas subtropicales asociadas.
Conclusiones:
- El patrón espacial observado de las tendencias de temperatura es una característica robusta del registro satelital de 27 años.
- Estos hallazgos proporcionan evidencia de cambios significativos en los patrones de circulación atmosférica.
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