Cold Environments

The four key areas of the option

1 Defining and locating cold environments

2 Climatic processes and their causes

3 Distinctive landforms and landscapes

4 Challenges and opportunities

Key question 1 .

Defining and locating cold environments

Sub questions

1. Where are the cold environments today?

2. How many ice ages have their been?

3. What factors caused the ice ages to occur?

4. Are all cold environments the same?

5. How do glaciers form their movement and the system which sustains them

Present day location of glacial areas

Different types of cold areas

Ice Ages over time

Pleistocene and Holocene

Theories Milankovitch

Theories Milankovitch

•Snow fall

•Nivation/ice crystals

•Firn / neve stage

•Sintering

•Slow growth rate in polar areas

Stages of formation of glacier.

The glacial system

•Dramatic fast

•Basal sliding

•Plastic flow

•Central movement

Glacial movement