主題大綱
Eddies
Many mesoscale eddies exist in the ocean, having a great influence on the marine ecosystem.
Mesoscale eddies are roughness of the sea surface
In the Northern Hemisphere, high seal-level area corresponds to clockwise eddy, and vice versa.
Warm eddies are anticyclones in the ocean
Warm water: low density → High sea level (like floating ice) → high pressure near the surface → anticyclone in the ocean.
Impacts of mesoscale eddies on phytoplankton
along the Aleutian Islands
Mesoscale eddies: strongly impact on the ecosystem in the central subarctic North Pacific