Labrador Sea
node · earth
The basin between Labrador and Greenland where winter storms strip so much heat from the surface that the water column overturns to depths of one to two kilometres, forming Labrador Sea Water. For most of the twentieth century this was assumed to be the engine room of the Atlantic overturning. The OSNAP array, deployed across the subpolar North Atlantic in 2014, measured it directly and found otherwise: over the first 21 months, overturning across OSNAP West — the Labrador section — averaged 2.1 ± 0.3 Sv, while across OSNAP East, from Greenland to Scotland, it averaged 15.6 ± 0.8 Sv. Deep convection here is real and dramatic; it is simply not where most of the overturning happens.
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Timeline
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Connections · 1
- North Atlantic — Grand Banks approachesconnected_to
Assembled narrative · 1
Assembled from 26 blocks · 1 evidence · 67 related
- Story
- The basin between Labrador and Greenland where winter storms strip so much heat from the surface that the water column overturns to depths of one to two kilometres, forming Labrador Sea Water. For most of the twentieth century this was assumed to be the engine room of the Atlantic overturning. The OSNAP array, deployed across the subpolar North Atlantic in 2014, measured it directly and found otherwise: over the first 21 months, overturning across OSNAP West — the Labrador section — averaged 2.1 ± 0.3 Sv, while across OSNAP East, from Greenland to Scotland, it averaged 15.6 ± 0.8 Sv. Deep convection here is real and dramatic; it is simply not where most of the overturning happens.
- Knowledge
- North Atlantic — Grand Banks approaches
- Labrador Sea
- Connections
- North Atlantic Deep Water (NADW)
- North Atlantic — Grand Banks approaches
- Overturning in the Subpolar North Atlantic Program (OSNAP)
- OSNAP is deployed across the subpolar North Atlantic
- OSNAP moves the engine room out of the Labrador Sea
- RMS Titanic
- North Atlantic iceberg drift
- Titanic wreck site
- International Ice Patrol
- Baltic's ice warning handed to Ismay and pocketed
- Mesaba reports heavy pack ice and bergs directly ahead
- Iceberg sighted and struck
- Titanic founders
- International Ice Patrol established
- Gulf Stream
- Southern Ocean
- Labrador Sea
- The RAPID array begins continuous AMOC measurement at 26.5°N
- Evidence
- Over the first 21 months of the OSNAP array (August 2014 – April 2016) overturning averaged 15.6 ± 0.8 Sv across OSNAP East and 2.1 ± 0.3 Sv across OSNAP West, contradicting the prevailing view that Labrador Sea convection dominates subpolar overturning variability. Read via search summaries and press releases; the article itself was not fetched.
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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