SECTION A - The Boothia Peninsula, Canadian Arctic
Answer questions based on images. Click on images to make them
bigger. (10 points)
Two images are presented. Both are from the same dataset acquired in June 2000. The
Boothia Peninsula is the Canadian Arctic, immediately northwest of Hudson Bay. Three
main surface materials are observed. These are labeled on image 4A: point A represents
sea ice; point B represents unconsolidated sediment (glacial deposits and raised beach
deposits); and point C represents granitic bedrock.
1. Which band is the bedrock reflecting in most? (1)
a. 7
b. 5
c. 4
d. 3
2. Are any portions of the sea ice significantly reflecting in the mid infrared band?
(1)
a. Yes
b. No
3. In which band is the sea ice reflecting most? (1)
a. 7
b. 5
c. 4
d. 3
4. If the dataset was displayed as 753 what color would dominate the sea ice? (1)
a. Red
b. Green
c. Blue
d. Not enough information to tell.
5. Based on your observations on this image and your knowledge on water reflection
and absorption, which of the following statements are true (1)
a. Ice absorbs more energy than water in the visible and near infrared bands
b. Ice reflectance is significantly higher than water in band 3
c. Reflectance for both ice and water are the same
