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Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
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El espectro temporal a corto plazo del vapor de agua precipitable
Science (New York, N.Y.)
|September 4, 1981
Resumen
Este estudio analiza las fluctuaciones a corto plazo del vapor de agua atmosférico utilizando datos de radiómetros de microondas. Los hallazgos revelan espectros de potencia asociados con los niveles de vapor de agua en varias escalas de tiempo.
Área de la Ciencia:
- Ciencias de la atmósfera Ciencias atmosféricas.
- Meteorología Meteorología.
- La detección remota con sensores.
Sus antecedentes:
- El vapor de agua precipitable es una variable atmosférica clave que influye en el tiempo y el clima.
- Comprender la dinámica del vapor de agua requiere técnicas de medición precisas.
- La radiometría de microondas ofrece un método para el perfil continuo de la atmósfera.
Objetivo del estudio:
- Para presentar espectros de potencia a corto plazo de las fluctuaciones precipitables del vapor de agua.
- Para analizar periodicidades dentro de un período de muestreo de 34 horas.
- Para investigar la relación entre la potencia de fluctuación y el contenido promedio de vapor de agua.
Principales métodos:
- Utilizando un radiómetro de microondas de doble canal para las mediciones.
- Adquisición de datos durante períodos de muestreo prolongados de 34 horas.
- Cálculo de espectros de potencia para analizar las frecuencias de fluctuación.
Principales resultados:
- Desarrolló espectros de potencia a corto plazo para el vapor de agua atmosférico.
- Periodicidades identificadas que van desde 1 día hasta aproximadamente 10 minutos.
- Potencia de fluctuación correlacionada con el vapor de agua precipitable medio.
Conclusiones:
- El análisis espectral a corto plazo proporciona información sobre la variabilidad del vapor de agua.
- Los datos del radiómetro de microondas capturan efectivamente los rápidos cambios atmosféricos.
- La caracterización adicional del ruido de los instrumentos es esencial para un análisis preciso.
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