Pages in this set

Page 1

Preview of page 1
ALBEDO = Albedo is the part of solar energy reflected from the Earth back
into space. Ice, especially with snow on top of it, has a high albedo: most
sunlight (90%) hitting the surface bounces back towards space.

Page 2

Preview of page 2
Impact of climate on the ecosystem

Page 3

Preview of page 3

Page 4

Preview of page 4
Mass balance = is the difference between the amount of snow and
ice accumulation on the glacier and the amount of snow and ice
ablation (melting and sublimation) lost from the glacier.

Page 5

Preview of page 5
Permafrost is when soil temp remains below Freezing for 2 or more years

Permafrost occurs

Active layer ­ soil melts, very wet
Permafrost ­ frozen soil
Talik ­ unfrozen, heated by earth
Continuous ­ unbroken layer, across landscape
Discontinuous ­ scattered pockets of frozen ground
Sporadic ­ small islands…

Page 6

Preview of page 6
Glacial Erosion Diagram

Corrie cwm or cirque
Corries are armchair shaped hollows which have
steep back walls with an over deepened basin and a
rock lip. The glacial ice sticks to the rock on the back
wall, as the ice moves due to meltwater and gravity
it plucks rock away…

Page 7

Preview of page 7
Glacial Deposition Diagram
A drumlin is an elongated hill in the shape of a
half-buried egg. They were formed when the ice
became overloaded with sediment. When the ability of
the glacier was reduced, material was deposited, in the
same way that a river overloaded with sediment
deposits the…

Page 8

Preview of page 8
Moraine ­ This is the material produced by glacial erosion. The material tends to be unsorted (it
contains really huge boulders and at the same time a fine powder called glacial flour). It also tends to
be very angular, as the processes that form the material involve freezing and…

Page 9

Preview of page 9

Meltwater is abundant in warm-based glaciers and the term 'Fluvioglacial' is used to describe
the processes and effects of this meltwater.
Landforms are created by the meltwater from glaciers, largely through deposition but also
by erosion
Discharge (predominantly in summer months) occurs through supraglacial and subglacial
streams at the base…

Page 10

Preview of page 10
Fluvio-glacial Deposition Diagram
Outwash Plains (Sandur)
Comprised of gravels, sands and clays deposited
by meltwater streams. The plains tend to sort the
sediment so that coarser material, like sand, is
closer to the snout, and finer clay is furthest away.
(Outwash material may also be deposited on top
of till…


No comments have yet been made

Similar Geography resources:

See all Geography resources »