1 / 16

Clouds and Precipitation

Clouds and Precipitation. Air Masses. Pg 480. Humidity. Humidity is a measure of the amount of water vapour in the air. The warmer the temperature of air, the more water the air can hold.

connor
Download Presentation

Clouds and Precipitation

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. Clouds and Precipitation

  2. Air Masses Pg 480

  3. Humidity • Humidity is a measure of the amount of water vapour in the air. • The warmer the temperature of air, the more water the air can hold. • Absolute Humidity is the actual amount of water vapour in the air. (grams of water vapour per kg of air) • Relative Humidity is the percentage of water vapour in the air compared to the amount of water vapour that the air can hold.

  4. Water in the Air • Clouds and mist are formed when the vapour condenses back into liquid because the air cannot hold anymore vapour. • The air is said to be saturated when this happens. • When the vapour condenses into water droplets they may form around tiny particles known as condensation nuclei. • Water droplets can also form on surfaces of solids. Dew on grass is an example

  5. Cloud Formation • Water vapour will condense into water droplets when air moves into a cooler region or the air temperature is lowered, forming clouds. • If the air is cold enough ice crystals will form. • If multiple droplets or crystals form together and become large enough, they will fall to Earth.

  6. Cloud Formation Pg 488

  7. Types of Clouds Cloud Shape Cumulus - puffy Stratus – flat, featureless Cirrus – wispy; ice crystals Step 1 Step 2 Descriptors Storm Clouds Nimbo (prefix) or Nimbus (suffix) Nimbostratus or Cumulonimbus Height Prefix Alto – Middle Clouds (2000-600m) Cirro – High up (above 6000m) Cloud Presentation

  8. Types of Clouds

  9. Name That Cloud Cirrocumulus Cirrus Contrails Cirrostratus Cumulonimbus Altocumulus Altostratus Cumulus Nimbostratus Stratocumulus Stratus Fog

  10. Precipitation Pg 494

  11. Cold Front Pg 497

  12. Warm Front Pg 497

  13. Highs and Lows • air moving up • cloudy sky • frontal system • counterclockwise wind • cyclone • air moving down • clear sky • large area • clockwise wind • anticyclone Pg 499-500

  14. Highs and Lows Pg 498

  15. Formation of a Low Pressure System Pg 501

More Related