Final part involving videos from youtube

1. Antarctica Unit 3

2. Flying above the edge of the ice shelf. This is an example of what can break
and form into icebergs.

4. What's next
• WORK - Answer the Postcard from Antarctica
question sheet and hand it in
• Research and human interaction

7. The true South Pole: the post needs to be moved some tens of meters every year due to ice
motion. In the background the dome hosting the base is visible

9. McMurdo, the main American base, is also the biggest Antarctic base, holding up to 3000
persons in summer. MacTown, as it's locally known, is ugly.

10. Mt Erebus, the only active volcano of Antarctica, also the largest, and the most typical
landmark of McMurdo.

11. C130s parked on the airstrip. There can be as many as 10 of those, ferrying people and
equipment back and forth between Christchurch (NZ), McMurdo, South Pole

12. Research – view videos and answer
question sheet
• ..........My
VideosGeographyAntarticacc11_icecores.flv
• ..........My
VideosGeographyAntarticaVideo
Australian Antarctic Division.flv
• ..........My
VideosGeographyAntarticaBeneath the
Frozen World - Cousteau in Antarctica.flv

14. Problems
• Whaling
• Global Warming
• Human impact

15. Construct a graph showing how whaling changed in Antarctica

17. Work – hand in the graph and the
questions
• Looking at the table and the graph you have drawn what do
you notice?
– When were most whales killed (years)?
– What type of whale was mainly killed?
– Whaling has not stopped but the type has changed why?
– Why did the type of whales killed change over the years?
– Any other comments?

18. Global Warming - Antarctica’s role as the world’s ‘weather engine’.
• Cold Antarctic air moves north and is replaced by southward moving air,
which cools as it moves south. In this way, Antarctica regulates the world’s
air temperature and its wind patterns.
• The Southern Ocean is one of the few places on Earth where carbon
dioxide is moved from the atmosphere and carried to the depths of the
ocean.
• The Antarctic Circumpolar Current (ACC) is the world’s biggest ocean
current and the only one to circle the globe. It distributes vast amounts of
heat, water, salt and carbon dioxide to all of the world’s oceans,
influencing the climates of all the world’s land masses.

20. Thinner to thicker
The hole in the
Ozone Layer =
the lavender
part

21. Air
temperatures
increases
Sea ice melts
Ocean absorbs sunlight
Ocean releases
heat to
atmosphere
Why Antarctica is melting

22. In March 2000, an 1100-sqkm
iceberg broke off from the ice shelf
and then rotated in the ocean
currents, trapping sea ice near to
shore.
The build-up in sea ice in the Ross
Sea increased the distance
between the rich waters of the
seas and the penguin
colonies on land. Fewer Adelie
penguin chicks survived into the
following year and the emperor
penguins at Cape Crozier failed to
produce any chicks at all.
Icebergs break from the edges of
ice shelves continually in a process
known as calving. This particular
iceberg was the largest floating
object ever recorded and, though it
may have been produced partially.

23. Air New Zealand Flight 901 (TE901) was a scheduled Antarctic sightseeing flight from Auckland
New Zealand. The Antarctic sightseeing flights were operated with McDonnell Douglas DC10 30
aircraft and began in February 1977, with this being the 14th flight. On the 28/11/1979 the
flight crashed in Antarctica, killing all 237 passengers and 20 crewmembers aboard.

24. Choose one of the following
1. Roald Amundsen
2. Sir Ernest Shackleton
3. Robert Falcon Scott
4. Douglas Mawson
• Create a presentation about their most
famous exploration of Antarctica.