Climate Change and West Antarctica - David Bromwich (SETI Talks)
Δημοσιεύτηκε στις 14 Οκτ 2014
The West Antarctic Ice Sheet
contains the ice equivalent of 5 meters of sea level and is slowly
adding to the rise of global ocean levels. It is now thought that the
ice sheet is undergoing irreversible marine ice sheet collapse. The
primary cause is bottom melting of coastal ice shelves in the Amundsen
Sea sector driven by oceanic and/or atmospheric factors. In addition,
the air temperature over the ice sheet interior has risen substantially
over the past 50 years at a rate comparable to that recorded on the
adjacent Antarctic Peninsula. There are many tropical and high latitude
influences at play governing the atmospheric and oceanic behavior in
this part of the world. The talk will lay out what is happening to West
Antarctica at present and what may happen in the future as worldwide
temperatures continue to increase.
contains the ice equivalent of 5 meters of sea level and is slowly
adding to the rise of global ocean levels. It is now thought that the
ice sheet is undergoing irreversible marine ice sheet collapse. The
primary cause is bottom melting of coastal ice shelves in the Amundsen
Sea sector driven by oceanic and/or atmospheric factors. In addition,
the air temperature over the ice sheet interior has risen substantially
over the past 50 years at a rate comparable to that recorded on the
adjacent Antarctic Peninsula. There are many tropical and high latitude
influences at play governing the atmospheric and oceanic behavior in
this part of the world. The talk will lay out what is happening to West
Antarctica at present and what may happen in the future as worldwide
temperatures continue to increase.
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