Question | Answer |
What is a barometer? | An instrument that measures air pressure. |
What is the aneroid barometer? | A more compact barometer design, which works without a meter-long tube of mercury. |
What is wind? | Generally the horizontal motion of air across the Earth's surface. |
What is an anemometer? | A device that measures wind speed in kilometers per hour, miles per hours, meters per second, or knots. |
What does the wind vane determine? | Determines wind direction; the standard measurement is taken 10m above the ground to reduce the effaces of local topography on wind direction. |
What is Pressure Gradient Force? | It drives air from ares of higher barometric pressure to areas of lower barometer pressure, thereby causing wind. |
What is the Coriolis Force? | A defective force, makes wind that travels in a straight path appear to be deflected in relation to Earth's rotating surface. |
What is Friction Force? | Drags on the wind as it moves across surfaces; it decreases with height about the surface. |
What is an isobar? | An isoline plotted on a weather map to connect points of equal pressure. |
What are geostrophic winds? | Are characteristics of upper tropospheric circulation. |
What do you call Northern Hemisphere winds that spiral out from a high-pressure area clockwise form? | Anticyclones |
What do you call Northern Hemisphere winds that spiral into a low-pressure area counterclockwise form? | Cyclones |
What is the Intertropical Convergence Zone (ITCZ)? | The combination of heating and convergence forces air aloft. |
What are trade winds? | Winds converging on the equatorial low=pressure trough. |
Where does the polar jet stream meander between? | 30 degrees and 70 degrees North latitude |
What results from when mountain air cools rapidly at night, and valley air gains heat energy rapidly during the day? | Mountain and valley breezes |
What are katabatic winds also known as? | Gravity drainage winds |
How does an upwelling current occur? | When surface water is swept away from a coast, either by surface divergence or by offshore winds. |
Is thermohaline circulation different from wind-driven surface currents? | Yes. |
How are Rossby waves formed? | By vast, flowing, longwave, undulation in the upper westerlies. |
What happen during a downwelling current? | There is an accumulation of water, the excess water gravitates downwards. |