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Sverdrup (Sv)

node

The unit in which ocean transports are stated: one sverdrup is one million cubic metres per second. It exists because the numbers involved are otherwise unreadable — the Amazon in flood is roughly a fifth of a sverdrup, while the Antarctic Circumpolar Current moves about 173. Every transport figure in this Journey is in these units, and the unit matters for judging claims: a 1 Sv-per-decade AMOC trend against a 2.8 Sv standard deviation is a small signal inside a large amount of natural variability, and saying so is not scepticism but arithmetic.

A node is not a place. Drawing it on a map would assert something about the world that no stored fact supports.

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No dated observations are stored for this object. Atlas shows what was observed and when — it does not infer a history.

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    Assembled narrative · 1

    Assembled from 10 blocks · 1 evidence · 5 related

    1. Story
    2. The unit in which ocean transports are stated: one sverdrup is one million cubic metres per second. It exists because the numbers involved are otherwise unreadable — the Amazon in flood is roughly a fifth of a sverdrup, while the Antarctic Circumpolar Current moves about 173. Every transport figure in this Journey is in these units, and the unit matters for judging claims: a 1 Sv-per-decade AMOC trend against a 2.8 Sv standard deviation is a small signal inside a large amount of natural variability, and saying so is not scepticism but arithmetic.
    3. Knowledge
    4. Sverdrup (Sv)
    5. Connections
    6. RAPID-MOCHA-WBTS Array at 26.5°N
    7. Drake Passage is measured and the ACC turns out to be larger
    8. Twenty-two years of continuous AMOC observation
    9. Evidence
    10. Daily Florida Current transport is derived from voltages induced on a submarine telecommunications cable across the Straits of Florida near 27°N, between West Palm Beach and Eight Mile Rock on Grand Bahama, measured near-continuously since 1982; the long-term mean is 32 Sv, where 1 Sv = 10⁶ m³ s⁻¹. Read via search summary; the AOML domain is blocked to this run.
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    Observed changes · 0

    No public Signals are attached to this object. Signals show what changed and when it was observed — never a direction or a rank.

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    /atlas?object=CONCEPT_SVERDRUP_UNIT&experience=CONCEPT_SVERDRUP_UNIT