Why Antarctic Sea Ice Cover Has Increased Under the Effects of Climate Change

 

Why Antarctic Sea Ice Cover Has Increased Under the Effects of Climate Change

 

There is no direct evidence that the Antarctic sea ice during the past 20 years Drift is the change, in response to changing winds this week's journal Nature Geoscience has been published. NERC British Antarctic Survey (BAS) and NASA's jet propulsion (JPL) Laboratory, Pasadena, California, that explains why scientists, in a dramatic loss of Arctic contrast, Antarctic sea ice cover has increased under the impact climate change .JPL 5 million individual daily ice motion show four U.S. Defense Meteorological satellite captured the 19-year period, using for the first time during measurement, created by, Antarctica Maps in long-term Drift is the change in sea ice.Lead author Dr. Paul Holland boss said: "Drift in the snow changes were only doubt upon, Antarctic winds using computer models to study the direct climate satellite commentsRegional changes in the winds change, which in turn affect the Snow changes are due to the snow cover. Drift and air temperature. changes in the Antarctica Ice Drift, produced by the developing sea ice cold salt water is very sensitive to large changes in ocean advice around
"Sea ice is constantly on the move, away from continental ice around Antarctica strong winds were blowing from the north since 1992 has changed the Drift Ice, snow in some areas recovered from Antarctica has doubled, while in others. has declined significantly. "
Sea ice plays an important role in the global environment - reflecting heat from the sun and provide habitat for marine life. In both poles sea ice cover during late summer is the minimum. However, winter freeze in Antarctica this ice cover over an area extending approximately two times the size of Europe. Several meters in thickness from less than a meter away, frigid upper atmosphere by warm sea ice insulates.
The new research also found that core sea ice volume changes are very different in the two polar regions helps to explain. Dramatic Arctic ice in recent decades suffered losses in the overall Antarctic ice extent is slightly increased. However, this small increase Antarctic is really large regional increases and decreases, which is now running the show is a result of the changes. In places, the north winds increased sea ice cover of Antarctica to expand beyond reason. Arctic Ocean is surrounded by land, air change in the expansion of Arctic ice may not.Dr. Ron Kwok, JPL said, "Antarctic sea ice cover in the Arctic in the global climate system interacts very different, and their results Antarctic ice around the continent coverage in force winds clear sensitivity to change. '
The observed changes in Antarctic climate in recent decades contrasting. The Antarctic Peninsula is warming anywhere in the Southern Hemisphere, while the East coast of Antarctica little change or even a small cooling has been shown around. New research to improve understanding of current and future climate change is. It is important Antarctic ice sheet between - glacial ice - the Antarctic sea ice volume is lost - frozen ocean water - which is spreading.
The Natural Environment Research Council Research (NERC) and the National Aeronautics and Space Administration (NASA) was funded by.