Geologists to determine how frequently landslides occurred. Geologists to determine how frequently landslides occurred
Select one:
a. occur in every U.S. state
b. occur wherever there are elevated slopes
c. cause more deaths than floods worldwide
d.
cost the U.S. billions annually
4. New technologies are key to study and estimation of geologic hazards. What is the advantage of lidar (laser-based altimetry) for estimating landslide hazards?
https://www.youtube.com/watch?v=eBUCGxZq_xg
https://www.youtube.com/watch?v=Pl2cHrHpdYk
Select one:
a. It allows geologists to determine how long ago landslides occurred
b. It allows geologists to determine how frequently landslides occurred
c. It allows geologists to model the topography at a high resolution
d. It allows for visualization and mapping of past landslides and their scars below vegetation on the landscape
5. Which of the following new technologies was NOT employed in the case of Oso?
https://www.youtube.com/watch?v=Pl2cHrHpdYk
Select one:
a. Satellite imagery and aerial photography from past years that show changes in the landscape over the past century
b. Thermal cameras that identify bodies of live victims buried at the distal ends of landslides
c. Augmented reality mapping system with pre-disaster aerial photography that shows the layout of the village in 3D
d. Radar and laser beams that measure minuscule movements of the earth’s surface
