South Georgia and the South Sandwich Islands
most of the islands,
rising steeply from the sea, are rugged and mountainous; South
Georgia is largely barren and has steep, glacier-covered mountains;
the South Sandwich Islands are of volcanic origin with some active
volcanoes
Southern Ocean
the Southern Ocean is deep, 4,000 to 5,000 m over
most of its extent with only limited areas of shallow water; the
Antarctic continental shelf is generally narrow and unusually deep,
its edge lying at depths of 400 to 800 m (the global mean is 133 m);
the Antarctic icepack grows from an average minimum of 2.6 million
sq km in March to about 18.8 million sq km in September, better than
a sixfold increase in area; the Antarctic Circumpolar Current
(21,000 km in length) moves perpetually eastward; it is the world's
largest ocean current, transporting 130 million cubic meters of
water per second - 100 times the flow of all the world's rivers
Spain
large, flat to dissected plateau surrounded by rugged hills;
Pyrenees in north
Spratly Islands
flat
Sri Lanka
mostly low, flat to rolling plain; mountains in
south-central interior
Sudan
generally flat, featureless plain; mountains in far south,
northeast and west; desert dominates the north
Suriname
mostly rolling hills; narrow coastal plain with swamps
Svalbard
wild, rugged mountains; much of high land ice covered; west
coast clear of ice about one-half of the year; fjords along west and
north coasts
Swaziland
mostly mountains and hills; some moderately sloping plains
Sweden
mostly flat or gently rolling lowlands; mountains in west