The intermediate state between snow and glacier ice.
What is firn?
100
The amount of snow accumulation or ablation cuases glaciers to do this.
What is retreat or advance?
100
Alpine glaciers are also called by these names.
What are mountain glaciers or valley glaciers?
100
A glacier in which ice temperatures always remain below freezing.
What is a polar glacier?
100
The loss of ice and snow from a glacier system.
What is ablation?
200
The part of a glacier with the highest elevation, adding to the glacier's mass.
What is the accumulation area?
200
Movement along the underside of a glacier is _______ than movement at the top of the glacier.
What is slower?
200
A fan or lobe-shaped glacier located at the front of a mountain range.
What is a Piedmont glacier?
200
Continental glaciers are only found in these locations.
What are Greenland and Antarctica?
200
The addition of ice and snow into a glacier system.
What is accumulation?
300
The part of a glacier where most melting and evaporation occurs.
What is the ablation area?
300
The movement of a glacier is affected by this as it slides along the ground's surface.
What is friction?
300
A small glacier that forms within a circular basin generally located on the side of a mountain.
What is a Cirque glacier?
300
A dome-shaped accumulation of glacial ice and perrenial snow that completely covers a mountainous area or island.
What is an Ice Cap?
300
A cross-valley ridge-like accumulation of glacial sediment that forms at the farthest point reached by the terminus of an advancing glacier.
What is the terminal moraine?
400
On a glacier, where snowfall equals snowmelt, this is reached.
What is mass-balance?
400
At locations where glaciers flow rapidly, these giant cracks are created.
What are crevasses?
400
A continuous accumulation of snow and glacial ice that completely fills a mountain basin or covers a mountain plateau.
What is an Ice Field?
400
A thick subcontinental or continental-scale accumulation of glacial ice and perennial snow that spreads from the center of accumulation in all directions.
What is an Ice Sheet?
400
A decrease in the length of a glacier compared to a previous point in time.
What is retreat?
500
This type of ice is less than 20% air bubbles.
What is glacial ice?
500
In 1986, this glacier began to move at a rate of 10 meters per day across the mouth of Russell Fjord.
What is Hubbard Glacier in Alaska?
500
A glacier formed below the terminus of a hanging glacier by the accumulation and regelation of ice blocks that have fallen and/or avalanched from the terminus of the hanging glacier.
What is a reconstituted glacier?
500
These types of glaciers can be both Alpine and Continental.
What are Tidewater or Tidal, and Temperate glaciers?
500
The lower-most margin, end, or extremity of a glacier. Also called Toe, End, or Snout.