Ice on the land

HideShow resource information
What do geochemists and paeloclimatologists use to determine dates and rates of the land surface?
ultra-rare cosmogenic nucleides
1 of 19
What is surface albedo?
reflectivity of a surface, how much is reflected off
2 of 19
What is the crysophere?
the study of all things ice, which include ice caps, ice shelves, icebergs, ice sheets, glaciers, permafrost, mountains, snow cover and lake ice
3 of 19
What is the order it from shortest to longest it takes for parts of the cysophere to form?
snow, river/lake ice, sea ice, glaciers and ice caps, frozen ground, ice sheet margins, ice shelves and ice sheets
4 of 19
What is glacial distribution controlled by?
temperature, preciptation, high latitudes and altitudes
5 of 19
What is an ice field glacier?
interconnected valley systems, they are the largest glaciers and they flow off one main galciers, each outlet one has different form and shape
6 of 19
What is a valley glacier?
each glaicer individual system flows as one unit, has a shape which flows as one unit and has a shape which flows onto the valley floor or coastal place, or marine terminating
7 of 19
What is a mountain glacier?
has to be bigger that 0.01 km 2, examples are cirque, niche and glacienet
8 of 19
What is ael heiberg, canadian arctic examples of?
piedmont glaicers
9 of 19
What is hubbard glaicers, alaska exmaples off?
surging glaicers
10 of 19
What glaicers are unconstrained by topography?
ice sheeets which are greater than 50'000km2 and ice caps that are less than 50'000 km2, ice domes, ice divides, outlet glaciers, ice streams and ice shelf
11 of 19
What are some ice cap examples?
agassiz ice cap, severny island, vatnojokull, austfanna
12 of 19
What are the to ice sheet example and what are the size?
Arctic and greenland (14 x 10^6km2) (2 times 10^6km2)
13 of 19
What are rivers of ice?
outlet glaicers, constrained by topography,common in greenland
14 of 19
What are ice streams?
contrained by free flowing ice, common in antartica, bed is more lubricated than the area underlying it so they travel fast
15 of 19
What are ice shelves?
extensions of glaciers tht float, beyond the grounding line, thinkened sea ice which moves quikcly and is very vulnerable
16 of 19
What are ice bergs?
calve from iceshleves/ floating tongues, ice is less dense than water so it floats
17 of 19
What are calving events?
ice that is broken off from a glacier, ice berg, ice shelve which persists in the water, ice rafted debris can be used to data large calving events
18 of 19
When does the artic sea ice and antartica have its max extension and min?
arctic max is in march, and min is in sept, antartica max is in sept and min in march
19 of 19

Other cards in this set

Card 2

Front

What is surface albedo?

Back

reflectivity of a surface, how much is reflected off

Card 3

Front

What is the crysophere?

Back

Preview of the front of card 3

Card 4

Front

What is the order it from shortest to longest it takes for parts of the cysophere to form?

Back

Preview of the front of card 4

Card 5

Front

What is glacial distribution controlled by?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all ice on the land resources »