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EARTH SCIENCE
GEOGRAPHIC REGION >
686
POLAR
686
OCEAN >
677
oceans
670
SOUTHERN OCEAN
644
SEA ICE
490
CONTINENT >
475
ANTARCTICA
430
CRYOSPHERE
418
AMD
336
AMD/AU
336
CEOS
336
SHIPS
297
ICE DEPTH/THICKNESS
219
biota
214
BIOLOGICAL CLASSIFICATION
210
PACK ICE
201
SEA ICE CONCENTRATION
201
ACE/CRC
197
R/V AA >
195
R/V Aurora Australis
195
ICE FLOES
185
ICE TYPES
185
AIR TEMPERATURE
178
LATITUDE
175
LONGITUDE
175
DATE
169
TIME
165
ASPECT >
158
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Southern Ocean
709
Antarctic
547
The Antarctic
325
East Antarctica
83
Arctic
81
Arctic Ocean
55
Austral
54
Weddell
51
Casey Station
49
Davis Station
42
Davis-Station
42
Indian
36
Vestfold
30
Vestfold Hills
30
Mirny
28
Molodezhnaya
26
Prydz Bay
25
McDonald Islands
22
New Zealand
22
Heard
20
Russkaya
20
Weddell Sea
20
Mertz Glacier
16
O'Brien Bay
16
Dumont d'Urville
15
Dumont-d'Urville
15
Mawson Station
15
Ross Sea
15
Kerguelen
14
Pacific
14
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Sea ice
Southern Ocean
Antarc*
692
Antarctic
547
Antarctica
508
aurora australis
211
East Antarctica
83
Arctic
81
Australian Antarctic Division
63
Arctic Ocean
55
ice core
55
Macquarie Island
35
Iceberg*
32
Ice Shelf
29
walrus*
28
ice algae
26
Ocean acidification
25
Prydz Bay
25
baleen whales
25
McDonald Islands
22
International Polar Year
21
toothed whales
21
Weddell Sea
20
IPY
18
Ice Sheet
18
Ice Shelves
18
Weddell Seals
18
Mertz Glacier
16
National Snow and Ice Data Center
15
Ross Sea
15
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