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EARTH SCIENCE
GEOGRAPHIC REGION >
669
POLAR
669
OCEAN >
662
oceans
653
SOUTHERN OCEAN
629
SEA ICE
477
CONTINENT >
474
ANTARCTICA
430
CRYOSPHERE
409
AMD
329
AMD/AU
329
CEOS
329
SHIPS
295
ICE DEPTH/THICKNESS
219
biota
207
BIOLOGICAL CLASSIFICATION
205
PACK ICE
201
SEA ICE CONCENTRATION
199
ACE/CRC
194
R/V AA >
190
R/V Aurora Australis
190
ICE TYPES
183
ICE FLOES
181
AIR TEMPERATURE
178
LATITUDE
171
LONGITUDE
171
DATE
167
TIME
163
ASPECT >
158
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Southern Ocean
692
Antarctic
547
The Antarctic
325
East Antarctica
83
Arctic
80
Arctic Ocean
54
Austral
54
Casey Station
49
Weddell
49
Davis Station
42
Davis-Station
42
Indian
33
Vestfold
30
Vestfold Hills
30
Mirny
28
Molodezhnaya
26
Prydz Bay
25
McDonald Islands
22
New Zealand
22
Heard
20
Russkaya
20
Weddell Sea
18
Mertz Glacier
16
O'Brien Bay
16
Dumont d'Urville
15
Dumont-d'Urville
15
Mawson Station
15
Ross Sea
15
Kerguelen
14
Amery
13
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Antarc*
Sea ice
Southern Ocean
Antarctic
547
Antarctica
508
aurora australis
204
East Antarctica
83
Arctic
80
Australian Antarctic Division
63
Arctic Ocean
54
ice core
53
Macquarie Island
35
Iceberg*
32
Ice Shelf
29
walrus*
28
Ocean acidification
25
Prydz Bay
25
baleen whales
24
ice algae
23
McDonald Islands
22
International Polar Year
21
toothed whales
20
IPY
18
Ice Sheet
18
Ice Shelves
18
Weddell Sea
18
Weddell Seals
18
Mertz Glacier
16
National Snow and Ice Data Center
15
Ross Sea
15
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