Cryosphere – Flashcards
Unlock all answers in this set
Unlock answersquestion
What amount of radiation will cause genetic mutations in females menstrual cycle
answer
0.1 gyt (10 rad)
question
What are the main components of the Cryosphere?
answer
Snow cover, permafrost, sea ice and glaciers
question
Which of the four main components is the largest component of the cryosphere?
answer
Snow cover
question
What is the cryosphere?
answer
The part of the Hydrosphere that is frozen. Includes the 4 components. Means frost in Greek "krunos"
question
What is permafrost?
answer
It occurs in cold areas where ground does not thaw in the warmest months
question
Draw a diagram of how a glacier is developed
answer
Answer should include: 5 stages, 3 zones
question
Which of the 4 components of the cryosphere contributes greatly to global climate change? How?
answer
Sea Ice, the melting ice water is added to the oceans and therefore is causing ocean level to rise.
question
Define Albedo. Which has greater albedo, snow or forest?
answer
The % of solar radiation reflected back to the atmosphere. Snow reflects more therefore has a higher albedo.
question
What role does the Cryosphere have on the hydrologic cycle? How has this changed?
answer
Answers may vary but should include: greater increase of water as cryosphere is melting.
question
What is till?
answer
Glacial material picked up (rocks and boudlers) as the glacier moves
question
What is Plastic flow?
answer
movement within the ice shelf
question
How are glacial landsacpe features created? Give examples.
answer
Landscape features are created as a glacial carves away at the existing landscape and when it melts features are left behind such as horns, cirques and aretes.
question
How are glacial depositional features created? Give examples
answer
Depositional features are features left behind from glacial debris (till) such as drumlins, morraines and eskers.
question
What is a U-shaped valley?
answer
A wide valley that is left behind from a glacier.
