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ANTARCTIC REGIONS
Marine Engineering
6
*ICEBREAKERS
4
ARCTIC REGIONS
4
Ice and Permafrost
4
Physical and Dynamic Oceanography
4
Snow
4
HYDROGRAPHIC SURVEYING
3
OCEAN CURRENTS
3
OCEANOGRAPHIC SHIPS
3
SALINITY
3
SEA ICE
3
TEMPERATURE
3
*RESEARCH SHIPS
2
AUSTRALIA
2
BATHYTHERMOGRAPH DATA
2
COAST GUARD
2
DATA ACQUISITION
2
DIESEL ENGINES
2
DISPLACEMENT
2
ICE
2
LOADS(FORCES)
2
OCEAN BOTTOM SAMPLING
2
OCEANOGRAPHIC DATA
2
OCEANOGRAPHY
2
POLAR REGIONS
2
ROSS SEA
2
SEA WATER
2
SHIPS
2
SUMMER
2
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Antarc*
13
Antarctic
13
Arctic
5
Antarctica
4
Ice
4
Sea ice
4
permafrost
4
Icebreaker
3
Ross Sea
2
Alaska
1
Iceberg*
1
McMurdo Sound
1
Northern Sea Route
1
Siberia
1
South Orkney Islands
1
South Shetland Islands
1
Southern Ocean
1
Victoria Land
1
Weddell Sea
1
ice covered waters
1
oden
1
wedge*
1
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