1 / 9

Chapter 8

Chapter 8. Section 3-5 (section 1-2 info is in your Water Cycle Presentation). Section 3 Air Masses- a huge body of air that has similar temperature, humidity, and air pressure at a given height. Types of air masses: Maritime Tropical Maritime Polar Continental Tropical Continental Polar

yasir-wheeler
Télécharger la présentation

Chapter 8

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 8 Section 3-5 (section 1-2 info is in your Water Cycle Presentation)

  2. Section 3 Air Masses- a huge body of air that has similar temperature, humidity, and air pressure at a given height. Types of air masses: • Maritime Tropical • Maritime Polar • Continental Tropical • Continental Polar Maritime-over the ocean, humid Continental-over land, low humidity Tropical-warm Polar-cold

  3. How air masses move- • Prevailing Westerlies- major wind belt over US, usually west to east. • Jet Streams- high speed air masses embedded in the westerlies. • Fronts- the boundary where two air masses meet.

  4. Types of Fronts • Cold fronts- cool, dense air

  5. Warm fronts- warm, less dense air

  6. Stationary fronts- when cold and warm air meet, neither one can move

  7. Occluded fronts- where a warm air mass is caught between two cold air masses

  8. Section 4 Storms! • A violent disturbance in the atmosphere. • Thunderstorms with heavy precipitation, including thunder, the sound of an explosion, and lightning, an electrical charge. • Tornadoes- a rapidly whirling, funnel-shaped cloud over land that reaches down from a storm cloud to the earth. • Snow storms- large amounts of precipitation in the form of snow. • Hurricanes-tropical cyclone, which is a swirling center of low air pressure, winds of 119 kph at least, begins over water, the “eye” of a hurricane is the calm inside the middle. • Floods- after a major downpour of rain, flash floods can occur.

  9. Section 5 Predicting Weather Meteorologist- scientists who study the causes of weather and try to predict it. They use maps, charts and computers to forecast the weather. Reading a weather map: Symbols, color for temperature and lines are used to show the direction of winds, fronts, etc.

More Related