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EARTH SCIENCE
GEOGRAPHIC REGION >
POLAR
686
OCEAN >
669
oceans
658
SOUTHERN OCEAN
636
SEA ICE
482
CONTINENT >
473
ANTARCTICA
428
CRYOSPHERE
413
AMD
334
AMD/AU
334
CEOS
334
SHIPS
295
ICE DEPTH/THICKNESS
218
biota
209
BIOLOGICAL CLASSIFICATION
202
PACK ICE
201
SEA ICE CONCENTRATION
199
ACE/CRC
195
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
686
Antarctic
524
The Antarctic
323
East Antarctica
83
Arctic
81
Arctic Ocean
55
Austral
54
Weddell
51
Casey Station
49
Davis Station
42
Davis-Station
42
Vestfold
30
Vestfold Hills
30
Indian
28
Mirny
28
Molodezhnaya
26
Prydz Bay
25
McDonald Islands
22
Heard
20
New Zealand
20
Russkaya
20
Weddell Sea
20
Mertz Glacier
16
O'Brien Bay
16
Mawson Station
15
Ross Sea
15
Kerguelen
14
Wilkes Land
14
Amery
13
Amery Ice Shelf
13
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Sea ice
Southern Ocean
Antarc*
669
Antarctic
524
Antarctica
501
aurora australis
207
East Antarctica
83
Arctic
81
Arctic Ocean
55
ice core
55
Australian Antarctic Division
51
Iceberg*
32
Macquarie Island
31
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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