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What are 5 factors that affect wind?
Factors Affecting Wind Motion:
- Pressure Gradient Force:
- Coriolis Force:
- Centripetal Acceleration:
- Frictional Force:
- Primary or Prevailing Winds:
- Secondary or Periodic Winds:
- Tertiary or Local Winds:
Why does it get windy at night?
In the morning, when sunlight returns and begins to warm the surface layer, the wind from above gradually builds downward and returns to the surface. At night, winds above the surface layer often increase in strength because its energy is not dissipated by contact with the ground.
What causes deflection of wind?
Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect. This deflection is called the Coriolis effect.
Why does wind pick up during the day?
Much of the tendency for it to be windier during daylight hours is driven by sunlight and solar heating. The sun unevenly heats the Earth’s surface which, in turn, imparts uneven warmth to the air immediately above it. Sun-induced heating disappears with the onset of darkness, and winds fade.
What time of day is usually the windiest?
These gusty surface winds usually begin in the late morning hours, peak in the afternoon, and end by early evening. Winds in the low-levels become much more uniform at night and in predawn hours.
Why is it more windy at night?
The layer of fluid in contact with an underlying surface is called the boundary layer. The atmospheric boundary layer moves through a daily cycle based on heat from the sun. This cycle of daytime heating and nighttime cooling explains why, under most circumstances, higher winds are confined above the surface at night.
Why does it get windier at night?
What is a convective wind?
Hence, convective winds here refer to all winds—up, down, or horizontal— that have their principal origin in local temperature differences. This is somewhat different from common meteorological usage, wherein convection implies upward motion only.