Google Earth (Links to an external site.) ) where examples of wave refraction and diffraction can be observed and their images used to help explain the process. The two questions focus on writing a description of each phenomena, aided by the features visible in a chosen image.
The following locations (name and latitude, longitude) may be helpful in answering the first question:
Similarly, the following locations may be helpful in answering the second question:
Example 1: Wave refraction at Ipanema beach in Rio de Janeiro
Example 2: Wave diffraction at Shingle Island in the Laccadive Sea – observed in the 8/8/2010 image.
Question 1 5 pts
Explain the process of wave refraction along coastlines making explicit use of images from Google Earth to illustrate your answer.
A strong answer will designate locations according to latitude & longitude in Google Earth that provide visual complements for the explanation of wave refraction. Specific reference will be made to aspects of the features in the image(s) – e.g. apparent bending of waves in shallow water – that exemplify the process.
Examples of wave refraction include:
Question 2 5 pts
Explain the process of wave diffraction along coastlines making explicit use of images from Google Earth to illustrate your answer.
A strong answer will designate locations according to latitude & longitude in Google Earth that provide visual complements for the explanation of wave diffraction. Specific reference will be made to aspects of the features in the image(s) – e.g. interference of waves associated with waves around islands – that exemplify the process.
The following locations may be helpful in answering this question:
North and South Islands of New Zealand (35° 10′ 00″ S, 173° 06′ 00″ E and 41° 31′ 00″ S, 174° 05′ 00″ E, respectively)
Shingle Island in the Laccadive Sea (9° 15′ 00″ N, 79° 14′ 00″ E)
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