Lab 12.2017..docx - DEPARTMENT OF GEOGRAPHY UNIVERSITY OF...

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DEPARTMENT OF GEOGRAPHY UNIVERSITY OF FLORIDA PHYSICAL GEOGRAPHY LAB. - GEO 2200L Lab 12: Remote Sensing Total: 35 points Go to the following website: Use the information provided in the section labeled Foundations of Remote Sensing to answer the following questions. 1 What two characteristics can be used to classify electromagnetic rays? (2 points) Frequency or Wavelenght, and the velocity of all electromagnetic waves are equal to the speed of light. 2 What three reactions can occur when energy encounters an object? (3 points) Reflected radiation, absorbed radiation and transmitted radiation. 3 Of these three reactions, reflection is most important to remote sensing. Give the reason why this is so. (You may have to do extra research to answer this) (2 points) Reflection is most important to remote sensing, because it is the radiation that causes our eyes to see colors, causes infrared film to record vegetation, and allows radar images of the earth to be created. Now click on the section labeled Aerial Photography. Use the information provided to answer the following questions. 4 What type of view does aerial photography present? (2 points) Black and White, color, and color infrared 5 List three ways in which aerial photographs are different from ‘regular’ photographs. (3 points) - Objects are portrayed from an overhead (and unfamiliar) position. - Very often, infrared wavelengths are recorded - Photos are taken at scales most people are unaccustomed to seeing 6 List three advantages of using aerial photography. (3 points)
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