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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/gmd-2020-111
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2020-111
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: model experiment description paper 30 Apr 2020

Submitted as: model experiment description paper | 30 Apr 2020

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This preprint is currently under review for the journal GMD.

Introducing LAB60: A 1/60° NEMO 3.6 numerical simulation of the Labrador Sea

Clark Pennelly and Paul G. Myers Clark Pennelly and Paul G. Myers
  • 1–26 Earth Sciences Building, University of Alberta, Edmonton, Alberta, Canada, T6G 2E3

Abstract. A high-resolution coupled ocean-sea ice model is set up within the Labrador Sea. With a horizontal resolution of 1/60°, this simulation is capable of resolving the multitude of eddies which transport heat and freshwater into the interior of the Labrador Sea. The transport of these fluxes strongly governs the overall stratification, deep convection, and subsequent production of Labrador Sea Water. We implement nested domains within our regional configuration to reduce computational costs, allowing for a simulation that spans over 10 years. Three passive tracers are also included: Greenland runoff, Labrador Sea Water produced during convection, and Irminger Water which enters the Labrador Sea along Greenland. We describe the configuration setup and compare against similarly forced lower-resolution simulations to better describe how horizontal resolution impacts the Labrador Sea.

Clark Pennelly and Paul G. Myers

Interactive discussion

Status: open (until 30 Jun 2020)
Status: open (until 30 Jun 2020)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Clark Pennelly and Paul G. Myers

Model code and software

LAB60 model code and related files C. Pennelly https://doi.org/10.5281/zenodo.3762748

Video supplement

Passive Tracer: Greenland runoff C. Pennelly and P. G. Myers https://doi.org/10.7939/r3-43mg-db88

Passive Tracer: Irminger Water C. Pennelly and P. G. Myers https://doi.org/10.7939/r3-zwkr-0w35

Passive Tracer: Labrador Sea Water C. Pennelly and P. G. Myers https://doi.org/10.7939/r3-7295-ks15

Mixed Layer Depth C. Pennelly and P. G. Myers https://doi.org/10.7939/r3-m6rk-h867

Relative Vorticity C. Pennelly and P. G. Myers https://doi.org/10.7939/r3-2yts-nw62

Stratification Strength C. Pennelly and P. G. Myers https://doi.org/10.7939/r3-nen0-g831

Clark Pennelly and Paul G. Myers

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Latest update: 31 May 2020
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Short summary
A high-resolution ocean simulation was carried out within the Labrador Sea, a region where low-resolution climate simulations may misrepresent. We show that small scale eddies, and their associated transport, are better resolved at higher resolution than at lower resolution. These eddies transport important properties to the interior of the Labrador Sea, impacting the stratification and reducing the convection extent to be far more accurate when compared to what observations suggest.
A high-resolution ocean simulation was carried out within the Labrador Sea, a region where...
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