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A fluid dynamics lab experiment illustrates flow past a mountain-shaped obstacle. Downstream wave crests radiate upwards with their group velocity pointing about 45° from horizontal. A downslope jet can be seen in the lee of the mountain, an area of lower pressure, enhanced turbulence, and periodic vertical displacement of fluid parcels.
Turbulence on flights is usually caused by mountains, storms or powerful jet stream currents, so it’s not surprising that rocky ranges feature prominently in a new list of flight routes that had ...
In meteorology, clear-air turbulence ... Wind flow over a mountain produces oscillations (A), (B) etc. Mountain waves are formed when four requirements are met. When ...
Turbulence can be caused by “waves” of air, which form upon contact with mountains and which can end up hitting an aircraft “like ocean waves crashing onto a beach”, by jet streams and ...
Mountain wave turbulence, as the name suggests, happens when the wind hits a mountain and is forced upward off its blustery path. That's why it's common to hit some bumps when you're flying over ...
Logo Mountain Wave Project. The Mountain Wave Project (MWP) pursues global scientific research of gravity waves and associated turbulence. MWP seeks to develop new scientific insights and knowledge through high altitude and record seeking glider flights with the goal of increasing overall flight safety and improving pilot training.
The effects are even more pronounced when a city is surrounded by hills or mountains since they form an additional barrier to air circulation. During a severe inversion, trapped air pollutants form a brownish haze that can cause respiratory problems. The Great Smog of 1952 in London, England, is one of the most serious examples of such an ...
Experts agree that climate change is making turbulence more frequent and intense. Here's what to know about why and how to stay safe.