GEOS 212 week 6
GEOS 212 week 6 GEOS 212
Popular in Introduction to Oceanography
Popular in Tier 2 Gen Ed
This 3 page Class Notes was uploaded by madelinef on Sunday October 9, 2016. The Class Notes belongs to GEOS 212 at University of Arizona taught by Joellen Russell in Fall 2016. Since its upload, it has received 3 views. For similar materials see Introduction to Oceanography in Tier 2 Gen Ed at University of Arizona.
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Date Created: 10/09/16
Lecture 12: Wind and Waves-10/4/16 Wind creates waves! o No wind, no waves o Some wind, some waves Big wind, no waves?--> This can be because of geography. There is not enough time for the wind to build up the waves on the east coast which is why there is low or no waves and big wind. Drawing: Wind speed. Vs. wave speed vs. wave height The maximum ocean waves that can be produced by a wind if it is blowing over sufficient fetch for sufficient duration Things to remember: o Biggest winds form the biggest waves in the southern hemisphere westerlies! o Things that determine wave size: wind speed, fetch (the area over which the wind blows), duration o Fully-developed sea- the maximum ocean waves that can be produced by a given wind blowing over sufficient fetch for sufficient duration o waves above/below the curve: surfing vs. Sailing Drawing: LA to the Beach Wind Waves in Deep Water o Energy moves through water o But the water moves in circles! Waves in shallow water o As they approach the shore they slow down, the wavelength decreases, the height increases and they stand up on the bottom and they eventually break. 2 o 3
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