Geography Reference
In-Depth Information
Figure 3.11. Cartographers of the U.S. Geological Survey used aerial photography taken in December 1963 to draw this shaded-
relief map of Terra Nova Bay. The details of the sea ice around Relief Inlet and the outline of the Drygalski Ice Tongue had probably
changed appreciably since the early twentieth century. In 1901 there was a deep reentrant in the area of Relief Inlet that
Discovery
nosed into before sailing back along the margin of the ice tongue. For David's party, which named the place, there was a distinct
cleft in the fast ice, a portion of which was mantled by thick moraine. David's route for this figure follows the basic shape of the
route on Mawson's map (compare Fig. 3.10) and places the end of the journey close to the edge of fast ice as indicated in 1963.
A further comparison can be made of differences in the shape of the Drygalski Ice Tongue as mapped by Mawson (Fig. 3.10), as
mapped by the U.S.G.S. (this figure), and as photographed in November 1986 (Fig. 1.13).
