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2. Wind - Wikipedia

   en.wikipedia.org/wiki/Wind

   Knowing the wind sampling average is important, as the value of a one-minute sustained wind is typically 14% greater than a ten-minute sustained wind. [16] A short burst of high speed wind is termed a wind gust ; one technical definition of a wind gust is: the maxima that exceed the lowest wind speed measured during a ten-minute time interval ...

3. Mountain breeze and valley breeze - Wikipedia

   en.wikipedia.org/wiki/Mountain_breeze_and_valley...

   Diurnal wind system variation in the Appalachian mountain range. Mountain and valley breezes form through a process similar to sea and land breezes. During the day, the sun heats up mountain air rapidly while the valley remains relatively cooler. Convection causes it to rise, causing a valley breeze. At night, the process is reversed.

4. Glossary of meteorology - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_meteorology

   Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...

5. Downburst - Wikipedia

   en.wikipedia.org/wiki/Downburst

   Maximum wind speeds reaching 190 km/h (120 mph) were surveyed and analyzed by the Northern Tornados Project, in an area measuring approximately 36 km (22 mi) long and 5 km (3 mi) wide. [ 50 ] 10 people were killed and many communities experienced significant damage and power outages spanning days as a result of the derecho that moved across ...

6. Convection - Wikipedia

   en.wikipedia.org/wiki/Convection

   Convection is also seen in the rising plume of hot air from fire, plate tectonics, oceanic currents (thermohaline circulation) and sea-wind formation (where upward convection is also modified by Coriolis forces). In engineering applications, convection is commonly visualized in the formation of microstructures during the cooling of molten ...

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8. Vertical draft - Wikipedia

   en.wikipedia.org/wiki/Vertical_draft

   Vertical drafts, known as updrafts or downdrafts, are localized regions of warm or cool air that move vertically. A mass of warm air will typically be less dense than the surrounding region, and so will rise until it reaches air that is either warmer or less dense than itself.

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