Video Experimental Relacionado
Updated: Jun 24, 2026

08:54
Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
Published on: February 13, 2018
Los espectros de ondas estratosféricas se asemejan a la turbulencia
Resumen
Las mediciones de turbulencia de las aeronaves pueden ser inexactas. Las ondas atmosféricas, no la turbulencia, podrían explicar las fluctuaciones observadas, invalidando las estimaciones anteriores de transporte estratosférico.
Área de la Ciencia:
- Ciencias de la atmósfera ciencia atmosférica.
- Química de la estratosfera La química de la estratosfera se encuentra en la estratosfera.
- Modelado de las turbulencias.
Sus antecedentes:
- El agotamiento de la capa de ozono está influenciado por el transporte estratosférico.
- El transporte vertical en la estratosfera es poco conocido.
- Estudios anteriores se basaron en mediciones de aviones para estimar la turbulencia.
Objetivo del estudio:
- Cuestionar la validez de las estimaciones previas de turbulencia en la estratosfera.
- Proponer una explicación alternativa para las fluctuaciones de velocidad observadas.
- Para evaluar el papel de las ondas atmosféricas en el transporte estratosférico.
Principales métodos:
- Reevaluación de las aeronaves en las mediciones in situ de las fluctuaciones de velocidad.
- Suponiendo que las fluctuaciones observadas son causadas por ondas atmosféricas.
- Desafiando la interpretación de los espectros de turbulencia clásicos.
Principales resultados:
- Las mediciones de las aeronaves anteriormente atribuidas a la turbulencia en realidad pueden provenir de las ondas atmosféricas.
- Esta reinterpretación sugiere que las estimaciones existentes del transporte de la turbulencia estratosférica son inválidas.
- El espectro de turbulencia clásica observado podría ser engañoso.
Conclusiones:
- Las estimaciones anteriores del transporte vertical en la estratosfera pueden ser fundamentalmente erróneas.
- Las ondas atmosféricas, no la turbulencia, podrían ser el conductor dominante del transporte vertical.
- Se requiere más validación experimental para confirmar el papel de las ondas atmosféricas.
Más Videos Relacionados
Videos de Conceptos Relacionados
Interference and Diffraction
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Wave Parameters
The simplest mechanical waves are associated with simple harmonic motion and repeat themselves for several cycles. These simple harmonic waves can be modeled using a combination of sine and cosine functions. Consider a simplified surface water wave that moves across the water's surface. Unlike complex ocean waves, in surface water waves, water moves vertically, oscillating up and down, whereas the disturbance of the wave moves horizontally through the medium. If a seagull is floating on the...
Propagation of Waves
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Standing Waves
Sometimes waves do not seem to move; rather, they just vibrate in place. Unmoving waves can be seen on the surface of a glass of milk kept in a refrigerator, which is one example of standing waves. Vibrations from the refrigerator motor create waves on the milk that oscillate up and down but do not seem to move across the surface. These waves are formed or created by the superposition of two or more identical moving waves in opposite directions. The waves move through each other, with their...
Introduction to Types of Flows
Fluid flows are categorized by dimensionality and behavior, with one-dimensional flow being the simplest form, where properties like velocity and pressure change only along a single axis. Water moving through straight pipes exemplifies this flow type, as variations in other directions are minimal. One-dimensional analysis helps simplify understanding such flows, focusing solely on changes along the pipe's length.
Two-dimensional flow involves changes in both length and height, as seen in air...
Two-dimensional flow involves changes in both length and height, as seen in air...
Partial Differential Equations
A stone dropped into a still pond generates waves that propagate outward in circular patterns, creating a dynamic surface whose elevation depends on both position and time. At any given location, the water level oscillates as the wave passes, while at any fixed moment, the surface exhibits smooth, curved structures extending across space. This dual dependence requires a mathematical description that accounts for variation in multiple variables simultaneously.At a fixed point on the water...

