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Weather Systems Eng
| Term | Definition |
|---|---|
| Air pressure | measures how compressed the articles in the air are |
| 1 atm (atmosphere) | the pressure measured at sea level under the weight of the entire atmosphere |
| Air pressure decreases as altitude | increases |
| Factors that influence air pressure (4) | Moisture level, altitude, temperature, insolation |
| Air flows from ___ to ___ pressure | high to low |
| Inclement (bad weather) happens in ____ pressure | low |
| Changes in wind pressure produce... | wind |
| The larger the wind gradient the ___ the wind | faster |
| High pressure systems move (2) | Outwards and clockwise |
| High pressure systems have ___ weather | clement/clear |
| Anticyclonic | flow opposite to earth's rotation |
| Pressure system that is anticyclonic | High pressure |
| Low pressure systems move (2) | inward and counterclockwise |
| Low pressure systems have ___ weather | inclement/bad |
| Cyclonic | Flows in the same direction as Earth's rotation |
| Pressure system that is cyclonic | Low pressure |
| Temperature of air that is less dense | warmer air |
| Sea breezes happen during | daytime |
| See breezes move air from the ____ to the ____ | sea to land |
| See breezes happen in what seasons | spring and summer |
| Sea breezes happen because | denser cooler air over the ocean moves in to land as the warmer air on land rises and moves away |
| Land breezes happen during | night time |
| Land breezes move air from the ___ to the ___ | land to sea |
| Land breezes happen during what seasons | fall and winter |
| Land breezes happen because | air over land cools quickly, becomes more dense, and moves out to ocean where air is less dense and warmer |
| Hurricanes are (3) | low pressure systems, spiral winds, counterclockwise |
| Hurricane eye is (3) | center of the storm, no clouds, high pressure |
| Hurricanes are powered by | moist air |
| Hurricanes die when | over land, and cold air moves away decreasing wind speed gradient |
| Hurricane formation (3) | Tropical depression -> tropical storm /cyclone-> hurricane |
| Tropical depression | warm, low pressure area over the ocean |
| Tornadoes are (3) | low pressure systems, counterclockwise, short |
| Tornadoes are formed by (4) | Thunderstorm, High Altitude, Horizontal Winds = Twirling Thunderstorm -> potential for tornado |
| During a tornado you should (3) | stay inside, stay away from water, be low to the ground |
| During a hurricane you should (2) | go to higher ground or shelter, stay indoors |
| During a tornado you should (1) | go to lower ground or room with no windows |
| During an earthquake you should (2) | stand/sit within door frame or under heavy furniture, stay infoors |
| During a tsunami you should | go to higher ground |
| Tsunamis are formed by | Receding of ocean water because of an earthquake, building up and forming a large wave |
| Cyclones are formed by | low pressure system of stationary front with cold front mixed around it = drop in pressure |
Created by:
Ms. Torres
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