Controllable slope soaring
Videos
Controllable-slope soaring is a type of slope soaring where a slope is made to follow a walkalong glider, both sustaining and controlling the glider's trajectory by modifying the wind in the vicinity
Person flying a Walkalong glider by controllable-slope soaring.
Orographic lift
Videos
Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. Orography is the study of the topographic relief of mountains. As the air
A gravity wave cloud pattern—analogous to a ship wake—in the downwind zone behind the Île Amsterdam, seen from above over the far southern Indian Ocean. The island generates wave motion in the wind passing over it, creating regularly spaced orographic clouds. The wave crests raise and cool the air to form clouds, while the troughs remain too low for cloud formation. Note that while the wave motion is generated by orographic lift, it is not required. In other words, one cloud often forms at the peak. See
Precipitation induced by orographic lift in Andalusia.
Windy evening twilight enhanced by the Sun's angle, can visually mimic a tornado resulting from orographic lift
Lenticular cloud over Arenal Volcano