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Climate change causing oceanic boundary currents to intensify and shift poleward
http://blogs.agu.org/geospace/2016/06/28/climate-change-causing-oceanic-boundary-currents-intensify-shift-poleward/28 June 2016
[font face=Serif][font size=5]Climate change causing oceanic boundary currents to intensify and shift poleward[/font]
Posted by llipuma
[font size=4]Change means greater heat and more winter storms for Asia; Gulf Stream is the exception[/font]
by Sina Löschke and Lauren Lipuma
[font size=3]Weather along the eastern coasts of South Africa, Asia, Australasia and South America will get significantly warmer and stormier on average over the next 100 years, a new study finds. The culprit? Climate changes that are causing ocean currents next to these coastal regions, called western boundary currents, to become stronger and extend further toward the poles, according to the new study.
Western boundary currents move warm water from the tropics toward the poles. Driven by winds, they occur on the western edges of oceans, adjacent to the eastern coasts of continents. They extend down to a depth of 1,000 meters (3,000 feet) and are among the fastest ocean currents in the world.
…
In the new study, scientists from the Alfred Wegener Institute (AWI) Helmholtz Centre for Polar and Marine Research in Bremerhaven, Germany used oceanographic and satellite data from 11 independent climate databases to evaluate how western boundary current changed from 1958 to 2001. They also analyzed simulations of past and future climates, indicators of the currents’ flow speeds, water temperature and air pressure at the ocean surface.
The researchers found increasing winds in both the Northern and Southern Hemispheres are causing western boundary currents to get warmer, stronger, and extend poleward. The study was published today in the Journal of Geophysical Research: Oceans, a journal of the American Geophysical Union.
…[/font][/font]
[font face=Serif][font size=5]Climate change causing oceanic boundary currents to intensify and shift poleward[/font]
Posted by llipuma
[font size=4]Change means greater heat and more winter storms for Asia; Gulf Stream is the exception[/font]
by Sina Löschke and Lauren Lipuma
[font size=3]Weather along the eastern coasts of South Africa, Asia, Australasia and South America will get significantly warmer and stormier on average over the next 100 years, a new study finds. The culprit? Climate changes that are causing ocean currents next to these coastal regions, called western boundary currents, to become stronger and extend further toward the poles, according to the new study.
Western boundary currents move warm water from the tropics toward the poles. Driven by winds, they occur on the western edges of oceans, adjacent to the eastern coasts of continents. They extend down to a depth of 1,000 meters (3,000 feet) and are among the fastest ocean currents in the world.
…
In the new study, scientists from the Alfred Wegener Institute (AWI) Helmholtz Centre for Polar and Marine Research in Bremerhaven, Germany used oceanographic and satellite data from 11 independent climate databases to evaluate how western boundary current changed from 1958 to 2001. They also analyzed simulations of past and future climates, indicators of the currents’ flow speeds, water temperature and air pressure at the ocean surface.
The researchers found increasing winds in both the Northern and Southern Hemispheres are causing western boundary currents to get warmer, stronger, and extend poleward. The study was published today in the Journal of Geophysical Research: Oceans, a journal of the American Geophysical Union.
…[/font][/font]
