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oceans
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547
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537
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418
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350
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300
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290
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237
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209
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DATE
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953
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702
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382
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119
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73
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68
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58
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51
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18
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Sea ice
Southern Ocean
Antarc*
919
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702
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688
aurora australis
286
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119
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90
Australian Antarctic Division
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International Polar Year
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IPY
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National Snow and Ice Data Center
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18
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