Source: Data courtesy of M. Demuth, NRCan, GSC, TSD, National Glaciology Program, Graph supplied by B. Luckman,University of Western Ontario
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Who monitors the glaciers?
Since the 1960s, government scientists have been
measuring the yearly balance of winter snow build-up
and summer melting of the Peyto Glacier. These "mass balance" surveys are done at only a handful of
Canada's glaciers, but they act as a check on the rate
at which these water towers are changing. |
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What is happening at
Peyto Glacier?
Repeat survey of the gain and loss of
ice at Peyto Glacier (1966 - 95) shows
that less snow has been accumulating
on the glacier in recent winters.This change is most clearly seen in the1977 -
1995 interval. It seems to be linked with
shifts in the temperature of the sea
surface in the northern Pacific Ocean. |
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