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4 days ago · 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 by 10 knots (19 km/h; 12 mph) for periods of seconds.
Jul 1, 2024 · Climate - Pressure, Wind, Air: Atmospheric pressure and wind are both significant controlling factors of Earth’s weather and climate. Although these two physical variables may at first glance appear to be quite different, they are in fact closely related.
1 day ago · These charts show the surface pressure pattern using isobars (lines of equal pressure) and indicate areas of high (H) and low pressure (L) along with their central pressure value. Isobars are...
Jul 1, 2024 · The pressure-gradient force expresses the tendency of pressure differences to effectuate air movement from higher to lower pressure. The Coriolis force arises because the air motions are observed on a rotating nearly spherical body.
4 days ago · Air is warmer in the core of a tropical cyclone, and this higher temperature causes atmospheric pressure in the centre to decrease at a slower rate with height than occurs in the surrounding atmosphere.
- A tropical cyclone is an intense circular storm that originates over warm tropical oceans. It is also called a hurricane or a typhoon. It is charac...
- Tropical cyclones occur every year during the late summer months: July–September in the Northern Hemisphere and January–March in the Southern Hemis...
- Characteristic features of tropical cyclones are the eye, a central region of clear skies, warm temperatures, and low atmospheric pressure; the eye...
- Every year tropical cyclones strike regions as far apart as the Gulf Coast of North America, northwestern Australia, and eastern India and Bangladesh.
- Tropical cyclones are known by multiple names. In the North Atlantic Ocean and the eastern North Pacific, these storms are called hurricanes. In th...
1 day ago · Usually, an anticyclone in the upper layers of the troposphere above the storm must be present as well—for extremely low surface pressures to develop, air must be rising very rapidly in the eyewall of the storm, and an upper-level anticyclone helps channel this air away from the cyclone efficiently.
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5 days ago · Pressure acts in all directions at a point inside a gas. At the surface of a gas, the pressure force acts perpendicular to the surface. Macro Scale Definition of Pressure. Turning to the larger scale, the pressure is a state variable of a gas, like the temperature and the density.
