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- Upper-level airflow occurs in wavelike currents that may exist for several days before dissipating. Upper-level wind speeds generally occur on the order of tens of metres per second and vary with height. The characteristics of upper-level wind systems vary according to season and latitude and to some extent hemisphere and year.
www.britannica.com/science/climate-meteorology/Upper-level-winds
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These strong, fast winds in the upper atmosphere can blow 480 kph (298 mph). Jet streams blow through a layer of the atmosphere called the stratosphere , at altitudes of 8 to 14 kilometers (5 to 9 miles) above Earth’s surface.
Sep 13, 2024 · Upper-level wind speeds generally occur on the order of tens of metres per second and vary with height. The characteristics of upper-level wind systems vary according to season and latitude and to some extent hemisphere and year.
Upper Level Winds. Generally, the wind speeds and directions at various levels in the atmosphere above the domain of surface weather observations, as determined by any of the methods of winds-aloft observation. Definition source: National Oceanic and Atmospheric Administration.
May 21, 2024 · The faster air flow in the upper troposphere leads to faster wind speed with increasing height, making the upper atmosphere less favorable for tropical storm development.
- Pressure Gradient Force. A pressure gradient (PG) is a change in pressure over a distance. Therefore, the units of the pressure gradient force are Pascals per meter (P m-1).
- Advection. While advection is included in the list of forces, it is actually not a true force. Still, advection can result in a change of wind speed in some locations.
- Centrifugal Force. The centrifugal force is an apparent force that includes the effects of inertia for winds moving along a curved path. The directionality of the centrifugal force points outward from the center of the curve.
- Coriolis Force. The Coriolis force (CF) is another apparent force that occurs due to the rotation of Earth. The Coriolis force is a deflecting force. It acts only on objects already in motion.
Jan 22, 2018 · It’s also why winds in the upper atmosphere are relatively weak near the equator. Closer to the mid-latitudes, they howl. They’ve curved so much to the right that they often are speeding eastward at an impressive clip.
Sep 20, 2023 · Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere, typically occurring around 30,000 feet (9,100 meters) in elevation.
