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GEOGRAPHIC REGION >
800
POLAR
oceans
756
CONTINENT >
755
ANTARCTICA
666
OCEAN >
647
SOUTHERN OCEAN
611
EARTH SCIENCE
610
AMD
477
AMD/AU
477
CEOS
477
SEA ICE
474
CRYOSPHERE
326
biota
317
EARTH SCIENCE >
316
BIOLOGICAL CLASSIFICATION
240
ACE/CRC
235
R/V AA >
223
R/V Aurora Australis
223
SHIPS
210
FIELD SURVEYS
207
BIOSPHERE
152
ANTARCTICA >
149
ICE DEPTH/THICKNESS
144
BIOSPHERE >
142
OCEANS >
134
OCEAN CHEMISTRY
131
ECOSYSTEMS >
127
climatologyMeteorologyAtmosphere
123
FIELD INVESTIGATION
120
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Southern Ocean
659
Antarctic
555
The Antarctic
270
East Antarctica
140
Casey Station
90
Austral
76
Davis Station
76
Davis-Station
76
Vestfold
68
Vestfold Hills
67
Weddell
65
Arctic
60
Prydz Bay
35
O'Brien Bay
29
Arctic Ocean
26
New Zealand
25
Mertz Glacier
23
Indian
22
Mawson Station
22
McDonald Islands
20
Mirny
20
Weddell Sea
19
Brown Bay
18
Heard
18
Amery
17
Amery Ice Shelf
17
Thala Valley
17
Dumont d'Urville
16
Dumont-d'Urville
16
Molodezhnaya
16
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Antarc*
800
Antarctica
Sea ice
Southern Ocean
659
Antarctic
555
aurora australis
238
East Antarctica
140
ice core
81
Australian Antarctic Division
79
Arctic
60
Iceberg*
42
walrus*
40
Ice Shelf
37
Ocean acidification
37
ice algae
36
Prydz Bay
35
Weddell Seals
35
baleen whales
30
Macquarie Island
27
Arctic Ocean
26
Ice Sheet
26
Weddell Seal
25
toothed whales
25
Ice Shelves
23
Mertz Glacier
23
Adelie penguin
21
International Polar Year
20
McDonald Islands
20
National Snow and Ice Data Center
20
Weddell Sea
19
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