What question did this study set out to answer?

To assess the intensification and depth of winter convection in the Labrador Sea between 2012 and 2016 along with its atmospheric preconditioning mechanisms.

December 8, 2016Geophysical Research Letters

Further intensification of deep convection in the Labrador Sea in 2016

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Authors

IYIgor YashayaevFisheries and Oceans Canada JLJohn W. LoderFisheries and Oceans Canada

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Implication

Oceanographic monitoring reveals deepening winter convection reaching 2100 meters in the Labrador Sea, suggesting major multiyear preconditioning driven by the North Atlantic Oscillation.

Key Points

To assess the intensification and depth of winter convection in the Labrador Sea between 2012 and 2016 along with its atmospheric preconditioning mechanisms.
Analyzed continuous hydrographic data from autonomous profiling Argo floats collected year-round from 2002 to 2016.
Integrated float profiles with annual shipboard oceanographic surveys to place recent convection events in a long-term context dating back to 1938.
Monitored seasonal-to-decadal changes in Labrador Sea Water density, convection depth, and repeated positive phases of the North Atlantic Oscillation.
Winter convection deepened progressively starting in 2012, with maximum individual profile depths exceeding 1800 m after 2014 and reaching 2100 m in 2016.
The 2012–2016 Labrador Sea Water class reached its highest density since the mid-1990s, emerging as one of the deepest and most persistent water classes documented since 1938.

Cite This Study

Yashayaev et al. (2016) studied this question.

synapsesocial.com/papers/69e29352e52bf159f3b73738 https://doi.org/10.1002/2016gl071668

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Implication

Oceanographic monitoring reveals deepening winter convection reaching 2100 meters in the Labrador Sea, suggesting major multiyear preconditioning driven by the North Atlantic Oscillation.

Further intensification of deep convection in the Labrador Sea in 2016

Discussion

Member takes

Implication

Key Points

Cite This Study

Further intensification of deep convection in the Labrador Sea in 2016

Discussion

Member takes

Implication

Key Points

Cite This Study

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