Oceans - Arctic CS Flashcards
What is artic amplification?
Increased solar heating as dark water replaces sea ice
How much has the sea ice reduced by?
12.6% loss per decade reduction
What has it meant due to little old ice left?
Rate of thickness decrease has slowed
How much of the sea ice is seasonal?
> 70%
What is sea ice role in the summer?
- Cooling effect -> prevents ocean from absorbing as much heat from solar radiation
When does brine drain out of the ice?
When ice grows increasing salinity
When does salinity decrease?
Fresh water due to sea ice melt
What is the ice albedo feedback?
It is a mechanism that can enhance the decline in sea ice in a warming climate
When is the ice albedo feedback strongest?
During summer when solar radiation is at its peak
Where is Europes largest rare earth mineral deposits found?
Sweden
Why are REM valuable?
Useful for tech and renewable energy
How much are Arctic Russian resources worth?
$1.5 -2 trillion
How many barrels of oil in the Arctic?
90 bn barrels
How many feet of natural gas?
1670 trillion ft^3
How many barrels of liquid natural gas in the Arctic?
44 bn barrels