98 % of Antarctica is covered with ice. The Dry Valleys region
is the largest area on the continent that is not. Located among
mountains by McMurdo Sound, on the part of Antarctica closest
to New Zealand, the valleys receive the equivalent of only 10
cm of water, on average, each year in the form of snow. Completely
devoid of terrestrial vegetation, the region is considered one
of the most extreme deserts on the planet.
during the austral summer, water flows through this
desert. Temperatures rise enough for glaciers protruding into
the valleys to begin melting. The meltwater forms streams that
enter lakes covered by ice that is two to three stories thick.
extend our appreciation to Global SchoolNet, our online