Cloud Seeding

This exercise does not correspond with a specific chapter in Ahrens. The quiz questions come both from the notes and the pool of general weather knowledge your should possess by this point. The additional links contain a wealth of additional information on this interesting and controversial topic.

Focus topics

 
• condensation nuclei
• hygroscopic particles
• cumulus cloud development

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Key Terms

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Check for Comprehension
 

1.  What are the principles of cloud seeding?

2.  Compare/contrast orographic and cumulus cloud seeding?

3.  What determines the hygroscopic or hydrophobic nature of a particle?
 

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Questions for Review

1.    Why is orographic seeding important in mountainous terrain?

2.    What are some examples of hygroscopic materials besides AgI?

3.    What is the collision-coalescence process?

4.    Why is AgI an effective agent for seeding?
 

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Quiz

(important information, please read)

If  you've answered the review questions and finished the reading assignment you should be ready to take the quiz for this section.  You may only take the quiz one time.  If more than one copy is submitted, only the first copy received will be graded.  You are expected to do your own work, but you may use your text and other resource material.  If you agree with these statement and are ready to take the quiz, press the button below.

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