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ANTARCTICA
4
BIOLOGICAL CLASSIFICATION
4
CONTINENT >
4
CRYOSPHERE
4
EARTH SCIENCE
4
GEOGRAPHIC REGION >
4
ICE DEPTH/THICKNESS
4
ICE EXTENT
4
OCEAN >
4
POLAR
4
SEA ICE
SOUTHERN OCEAN
oceans
4
ACE/CRC
2
ACOUSTIC SOUNDERS
2
ALBEDO
2
AMD
2
AMD/AU
2
ANIMALS/INVERTEBRATES
2
ANIMALS/VERTEBRATES
2
AQUATIC ECOSYSTEMS
2
ARTHROPODS
2
AUVS >
2
Autonomous Underwater Vehicles
2
BATHYMETRY
2
BATHYMETRY/SEAFLOOR TOPOGRAPHY
2
BIOSPHERE
2
BIRDS
2
BUOYS
2
CEOS
2
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Antarc*
4
Antarctic
4
Antarctica
4
East Antarctica
4
Iceberg*
Sea ice
4
Southern Ocean
4
Adelie Land
2
Adelie penguin
2
Antarctic Peninsula
2
Aptenodytes forsteri
2
Australian Antarctic Division
2
Emperor penguins
2
Ice Sheet
2
Ice Shelf
2
Ice Shelves
2
Mertz Glacier
2
Weddell Seal
2
aurora australis
2
ice algae
2
ice pack
2
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