Antarctica and Southern Ocean Flashcards

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1
Q

Antarctic convergence

A

A curve that continuously encircles Antarctica where the northward cold waters meet the other relatively warm waters

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2
Q

Polar desert

A

Areas with less than 250mm of precipitation annually and average of <10^C.

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3
Q

Nunataks

A

Small areas of rock that emerge above ice sheets, they are often mountain peaks

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4
Q

Phytoplankton

A

Self-feeding, mostly microspocip, single-celled photosynthetic organisms that live suspended in water

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5
Q

IWC

A

International whaling commission. Established in 1946, the aim was to conserve whale stocks and regulate the whaling industry. By 1985, most whaling had ended.

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6
Q

Southern ocean whale sanctuary

A

An area of 50 million km^2 surrounding Antarctica where all types of commercial whaling is banned. Japan continues to whale for ‘scientific purposes’

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7
Q

Krill

A

Tiny crustaceans which underpin the Southern Ocean food web.

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8
Q

Adaptaion

A

Any adjustment or function of an organism that allows it to survive better in an environment

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9
Q

ASOC

A

Antarctic and Southern Ocean Coalition. NGO formed in 1978 which ushes for the creation of marine protected areas and reserves

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10
Q

ATS

A

Antarctic Treaty System. The Antarctic Treaty was signed in 1952 by 12 countries and was over time built upon to make the ATS. The main points are that Antarctica must only be used for peace and science. There are now 52 parties and it will run out in 2048

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11
Q

Mitigation

A

Any action that offsets the detrimental effects of a process

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12
Q

Ecological resilience

A

The amount of disturbance that something can withstand without being damaged

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13
Q

SCAR

A

Scientific committee on Antarctic Research. Initiates, develops and co-ordinates international scientific research in the Antarctic region and on Antarctica’s role on Earth

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