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Slide 1 Weather Patterns Slide 2 Air masses Changes in the weather are caused by movements of large bodies of air called air masses. Air masses usually cover thousands of…
Air Masses Cold air masses originating in the arctic are called polar. Warm air masses originating near the equator are called tropical. Air masses that originate over the…
Air Masses Definition: Air mass - a large dome of air which has similar horizontal temperature and moisture characteristics throughout. Air Mass Descriptors: Continental:…
Volcanoes and Igneous Activity Earth - Chapter 4 Air Masses and Weather 17 Air Masses Air Masses • An air mass is an immense body of air that is characterized by similar…
Air Masses How do you think these air masses effect our weather? AIR MASSES AIR MASS - a huge body of air that has similar temperature, humidity, and air pressure throughout.…
Slide 1 Air Masses Slide 2 Changes in weather are caused by the movement of air masses. Slide 3 An AIR MASS is a very large volume or block of air w/ similar temp. &…
Slide 1 Air Masses How do you think these air masses effect our weather? AIR MASSES AIR MASS - a huge body of air that has similar temperature, humidity, and air pressure…
Slide 1 Air Masses How do you think these air masses effect our weather? AIR MASSES AIR MASS - a huge body of air that has similar temperature, humidity, and air pressure…
Air Masses and FrontsAir Masses and Fronts Chapter 11Chapter 11 Part 1 March 17 2009March 17, 2009 Air massesAir masses • Air mass = large body of air that has similar…
So, what is Humidity? The amount of water vapor in the air. –Water evaporates off of the ocean/lakes to become vapor –This increases the humidity of the air –The…
CHAPTER 4 AIR MASSES AND FRONTS Temperature in the form of heating and cooling plays a key roll in our atmosphere’s circulation Heating and cooling is also the key in the…
Lecture 18 Air Masses and Fronts • Air Masses • Air Mass Modification • Fronts Ahrens Chapter 8 1 2 Glad to be in HI My BB in Boulder, CO 102711 Note: no power! Snow…
Slide 1 Recap (Chapter 8) Air Masses Source Regions Classifying Air Masses Air Mass Modification Properties of North American Air Masses 4/03/01 (Chapter 7) 4/1/03 Outline…
Slide 1What Causes Changes in the Weather ? Air Masses / Air MovementAir Masses / Air Movement FrontsFronts Pressure SystemsPressure Systems Slide 2 Air Movement Winds Winds…
1. Winds 2. What makes the wind blow? uneven heating of the atmosphere warm air rises (forming low pressure) cool air sinks ( high pressure) to replace the warm air movement…
1. **The relative measure of the amount of water vapor in the air*Psychrometer*Water vapor affects the density of the air.*Cold air is heavier than warm air. 2. * 3. *Abody…
AIR MASSES AND FRONTS Air masses take on the characteristics of the area where they form. Air mass temperature and moisture are consistent throughout. Warm air forms over…
Fronts and Air Masses Look at the weather conditions outside. What type of air mass is over Long Island? What type of front is it causing? Low pressure/high pressure? What…
Air Masses and Fronts Air Masses and Fronts Air moves from areas of high pressure to low pressure, which are caused by the uneven heating of the Earth Air Masses: A large…
Air Masses and Fronts Air Mass A large body of air in which there are similar horizontal temperature and moisture properties. Properties are largely acquired from the underlying…