216tudent Activity Worksheetname
 - Your teacher provided your group with three pairs of APT images. Work with your group to 
 determine which of the pairs are visible and which pairs are infrared. After class discussion,
 write some of the differences between visible and infrared images.
 
 - Find the image pair of the Eastern seaboard. Locate some specific geographic features such as 
 capes, bays, estuaries, or peninsulas. Use your world atlas to help. Write the names of some of
 the features you have located.
 
 - On your infrared image, you should be able to easily see the warmer waters of the Gulf s t re a m. 
 On your worksheet map, color the waters of the Atlantic ocean light blue. Use a dark blue
 pencil to draw in the location of the Gulf stream, based on what you see in the infrared image.
 
 - Now locate the image pair which shows the mid-Atlantic region. The clouds on the visible 
 image should appear mostly white, while the clouds in the infrared image are various shades
 of gray and white, depending upon their temperature. On the infrared image, the whites
 clouds are the highest in altitude (coldest) and the darkest gray clouds are the warmest
 because they are closest to the ground. Mid-level clouds will appear as a variation between
 gray and white, if they are visible at all. The whitest clouds are the highest in altitude (coldest).
 
CO M PA R I N G VI S I B L E A N D
IN F R A R E D IM A G E RY
