Everyday miracles 7: deep ocean eddies

(c) Ocean University of China

Research by oceanographers led by Prof  Bo Qiu, University of Hawaii using 3000+ ARGO floats  shows huge ocean eddies 60 miles across extending 3000 feet below the surface. The vortexes may last months or years. Until now the only data was surface eddies mapped by NASA satellites. 

Ryan Abernathy, who studies the impact of ocean circulation on climate at Columbia University says it will kick off new research.  ”The volume estimate is really surprising,” he said. “This is an important effect. The next question is how leaky the eddy is.” The eddy is made of water, after all, and the difference between inside and outside is not precise. If, say, the dissolved carbon caught in an eddy slowly slips out, then after a year of meandering an eddy may have left its original contents an ocean away. But if the eddies hold their cargo tightly, they might be shipping enormous packages of carbon, salt, and pollutants from Australia to Africa and from Europe to America. Scientists are now trying to figure out how the packages effect local ecosystems and the planet’s climate. How do they affect high and low air-pressure weather fronts?

In the NASA anmation below, red ocean eddies spin clockwise, blue ones counterclockwise.  

Thanks to Terramar Project for this news.

Everyday miracles 6: the earth as art

This inspiring video was produced by SPACE Rip, using incredible images from Landsat, a joint initiative between NASA and the U.S. Geological Survey. We thank Ecology.com where it was posted.

Earthrise -- by William Anders

This photo of "earthrise" was taken by astronaut William Anders in 1968 during the Apollo 8 mission. It has been called "the most influential environmental photograph ever taken." Edgar Mitchell who is quoted here, piloted the lunar module on the Apollo 14 mission, 1971. He later took up the cause of Roswell UFO enthusiasts, and founded the Institute of Noetic Sciences with Deepak Chopra, Marilyn Schlitz, Dean Radin, and Cassandra Vieten. The US-NASA space program came to an end in 2011.