This topic contains a solution. Click here to go to the answer

Author Question: When warm and cold air masses collide, the warm air is forced upward. Why does this occur? What ... (Read 118 times)

amal

  • Hero Member
  • *****
  • Posts: 572
When warm and cold air masses collide, the warm air is forced upward. Why does this occur?
  What will be the ideal response?

Question 2

Why is the formation of air masses associated with high pressure systems rather than low pressure systems?
  What will be the ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cam1229

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

ANSWER: When warm and cold air masses come together, the cold, dense air wedges under the warm air, forcing the warm air upward, much like a snow shovel forces snow upward as the shovel glides through the snow.

Answer to Question 2

ANSWER: In order for a huge mass of air to develop uniform characteristics, its source region should be generally flat and of uniform composition with light surface winds. The longer the air remains stagnant over its source region, or the longer the path over which the air moves, the more likely it will acquire properties of the surface below. Consequently, ideal source regions are usually those areas dominated by surface high pressure. They include the ice- and snow-covered arctic plains in winter and subtropical oceans in summer. The middle latitudes, where surface temperatures and moisture characteristics vary considerably, are not good source regions. Instead, this region is a transition zone where air masses with different physical properties move in, clash, and produce an exciting array of weather activity.




amal

  • Member
  • Posts: 572
Reply 2 on: Jul 13, 2018
Wow, this really help


tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

For a complete list of videos, visit our video library