Answer:
Conditions at the base of a glacier increase glacial flow velocity -
Steeper slope
Smooth rock / glacier contact
Colder basal water temperature.
Explanation:
Steeper slope and smooth rock/glacier contact will increase glacial flow velocity because higher the steepness higher the velocity and smoothness will apply less friction.
Due to decrease in ice thickness the load at the bottom of the glacier will decrease, and we know that the glacier flows under the load of itself, so lesser the load lesser the velocity.
Colder basal water temperature will generate less amount of melt as compared to warmer basal water temperature, so in colder condition, glacial flow velocity will not be increased.
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Answer:
Explanation:
Scientists have been able to determine that the melting of ice from Greenland ice sheet will reduce the rate of Atlantic Meridional Overturning Circulation (AMOC) which is an important part of the global ocean current that determines the climate and controls Gulf stream. It as been inferred by researchers that this could affect climatic conditions in places like Europe and North America in the future.
The influx of fresh water from Greenland which is made up of runoff from ice, tundra and ice discharge will weaken the AMOC and this as both local and global effects on climate.
Polynesia Island was the most recently settled
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