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ANTARCTICA
CONTINENT >
37
GEOGRAPHIC REGION >
37
OCEAN >
37
POLAR
37
SOUTHERN OCEAN
37
R/V AA >
36
R/V Aurora Australis
36
oceans
35
EARTH SCIENCE
26
ACE/CRC
23
AMD
23
AMD/AU
23
CEOS
23
SIPEX
19
SEA ICE
18
OCEAN CHEMISTRY
16
SIPEX II
15
biota
14
CRYOSPHERE
13
ICE DEPTH/THICKNESS
13
SHIPS
12
EARTH SCIENCE >
11
OCEANS >
11
INDIAN OCEAN
9
SNOW DEPTH
8
CARBON DIOXIDE
6
CORING DEVICES
6
HELICOPTER
6
OCEAN CHEMISTRY >
6
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