Cryosphere

Question 1

An ice sheet is an ice mass with an area larger than or equal to

Answer 1

5 x10^4 km2

Question 2

Has sea ice in the arctic increased or decreased in the past 30 years

Answer 2

Decreased

Question 3

Clean glacier ice has an albedo of

Answer 3

34-51%

Question 4

The zone on a glacier where mass balance is positive is called the…

Answer 4

The accumulation zone

Question 5

How long ago was the ‘little ice age’

Answer 5

350 years ago

Question 6

What does the milankovitch cycle describe

Answer 6

Orbital changes of the earth through time

Question 7

During the last glacial maximum what formed over North America

Answer 7

An ice sheet

Question 8

Does visible light have a shorter wavelength than infrared light

Answer 8

Yes

Question 9

How do anthropogenic aerosols influence our climate

Answer 9

Scatter light
Increase cloud lifetime
Increasing cloud brightness

Question 10

In the northern hemisphere divert to the ..

Answer 10

Right

Question 11

Southern Hemisphere divert to the …

Answer 11

Left

Question 12

Winds blowing from east to west along the equator will cause …

Answer 12

Upwelling

Question 13

What does ENSO stand for

Answer 13

El Niño and the Southern Oscillation

Question 14

The specific heat capacity of a substance is a measure of

Answer 14

How much it’s temperature increases for the addition of a given amount of energy

Question 15

What is the density of ice

Answer 15

0.9167 g/cm3

Question 16

What month does sea ice around Antarctica reach it’s maximum

Answer 16

September

Question 17

The equilibrium line on a glacier will rise if

Answer 17

Temperature rises and precipitation remains constant

Question 18

Name 3 meltwater pathways

Answer 18

Supraglacial
Englacial
Subglacial

Question 19

Marine ice sheet margins are more unstable if they are positioned in which way

Answer 19

Reverse slope and bed below sea level

Question 20

Which type of ice form doesn’t add to sea level

Answer 20

Ice shelves