Sea Ice
Research Guide
Where are the oceans
Arctic and the Atlantic oceans
Ocean water chemistry
Average temperature: -76 f
Average density: about 1.028
Average pressure: about 1023
Average salinity: 31.5
Currents
The water in the arctic is salty and therefore quite dense due to this, currents don't flow readily, they are large clockwise rotational patterns
Ex- beaufort gyre and the barent gyre
The ocean and climate/ weather
El Nino and La Nina cause contrasts in temperature and air pressure also causes Arctic air to be colder and Atlantic to be warmer.
Characteristics of an ecosystem
Abiotic factors- sunlight and wind
Biotic factors- Polar bear, moose, penguins, whales
Sample food web- killer whale- whale- sea bird- seal- squid- fish- plankton
Invasive species- killer whale
Human impact on oceans
Resources- oil and gases
Human impact- They can make global warming worse and it will affect the Arctic.
What can be done?
NO littering (garbage and oils)