@article {petit_propagation_2023,
	title = {Propagation and Transformation of Upper North Atlantic Deep Water From the Subpolar Gyre to 26.5{\textdegree}N},
	journal = {Journal of Geophysical Research: Oceans},
	volume = {128},
	number = {8},
	year = {2023},
	note = {_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1029/2023JC019726},
	pages = {e2023JC019726},
	abstract = {Because new observations have revealed that the Labrador Sea is not the primary source for waters in the lower limb of the Atlantic Meridional Overturning Circulation (AMOC) during the Overturning in the Subpolar North Atlantic Programme (OSNAP) period, it seems timely to re-examine the traditional interpretation of pathways and property variability for the AMOC lower limb from the subpolar gyre to 26.5{\textdegree}N. In order to better understand these connections, Lagrangian experiments were conducted within an eddy-rich ocean model to track upper North Atlantic Deep Water (uNADW), defined by density, between the OSNAP line and 26.5{\textdegree}N as well as within the Labrador Sea. The experiments reveal that 77\% of uNADW at 26.5{\textdegree}N is directly advected from the OSNAP West section along the boundary current and interior pathways west of the Mid-Atlantic Ridge. More precisely, the Labrador Sea is a main gateway for uNADW sourced from the Irminger Sea, while particles connecting OSNAP East to 26.5{\textdegree}N are exclusively advected from the Iceland Basin and Rockall Trough along the eastern flank of the Mid-Atlantic Ridge. Although the pathways between OSNAP West and 26.5{\textdegree}N are only associated with a net formation of 1.1 Sv into the uNADW layer, they show large density changes within the layer. Similarly, as the particles transit through the Labrador Sea, they undergo substantial freshening and cooling that contributes to further densification within the uNADW layer.},
	issn = {2169-9291},
	doi = {10.1029/2023JC019726},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1029/2023JC019726},
	author = {Petit, T. and Lozier, M. S. and R{\"u}hs, S. and Handmann, P. and Biastoch, A.}
}
@article {RN246,
	title = {Subpolar North Atlantic western boundary density anomalies and the Meridional Overturning Circulation},
	journal = {Nature Communications},
	volume = {12},
	number = {1},
	year = {2021},
	pages = {3002},
	type = {Journal Article},
	abstract = {Changes in the Atlantic Meridional Overturning Circulation, which have the potential to drive societally-important climate impacts, have traditionally been linked to the strength of deep water formation in the subpolar North Atlantic. Yet there is neither clear observational evidence nor agreement among models about how changes in deep water formation influence overturning. Here, we use data from a trans-basin mooring array (OSNAP{\textemdash}Overturning in the Subpolar North Atlantic Program) to show that winter convection during 2014{\textendash}2018 in the interior basin had minimal impact on density changes in the deep western boundary currents in the subpolar basins. Contrary to previous modeling studies, we find no discernable relationship between western boundary changes and subpolar overturning variability over the observational time scales. Our results require a reconsideration of the notion of deep western boundary changes representing overturning characteristics, with implications for constraining the source of overturning variability within and downstream of the subpolar region.},
	doi = {10.1038/s41467-021-23350-2},
	url = {https://app.dimensions.ai/details/publication/pub.1138293382 https://www.nature.com/articles/s41467-021-23350-2.pdf},
	author = {Li, F. and Lozier, M. S. and Bacon, S. and Bower, A. S. and Cunningham, S. A. and de Jong, M. F. and deYoung, B. and Fraser, N. and Fried, N. and Han, G. and Holliday, N. P. and Holte, J. and Houpert, L. and Inall, M. E. and Johns, W. E. and Jones, S. and Johnson, C. and Karstensen, J. and Le Bras, I. A. and Lherminier, P. and Lin, X. and Mercier, H. and Oltmanns, M. and Pacini, A. and Petit, T. and Pickart, R. S. and Rayner, D. and Straneo, F. and Thierry, V. and Visbeck, M. and Yashayaev, I. and Zhou, C.}
}
@article {RN71,
	title = {A sea change in our view of overturning in the subpolar North Atlantic},
	journal = {Science},
	volume = {363},
	number = {6426},
	year = {2019},
	pages = {516},
	type = {Journal Article},
	abstract = {To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The first 21-month record reveals a highly variable overturning circulation responsible for the majority of the heat and freshwater transport across the OSNAP line. In a departure from the prevailing view that changes in deep water formation in the Labrador Sea dominate MOC variability, these results suggest that the conversion of warm, salty, shallow Atlantic waters into colder, fresher, deep waters that move southward in the Irminger and Iceland basins is largely responsible for overturning and its variability in the subpolar basin.},
	doi = {10.1126/science.aau6592},
	url = {http://science.sciencemag.org/content/363/6426/516.abstract},
	author = {Lozier, M. S. and Li, F. and Bacon, S. and Bahr, F. and Bower, A. S. and Cunningham, S. A. and de Jong, M. F. and de Steur, L. and deYoung, B. and Fischer, J. and Gary, S. F. and Greenan, B. J. W. and Holliday, N. P. and Houk, A. and Houpert, L. and Inall, M. E. and Johns, W. E. and Johnson, H. L. and Johnson, C. and Karstensen, J. and Koman, G. and Le Bras, I. A. and Lin, X. and Mackay, N. and Marshall, D. P. and Mercier, H. and Oltmanns, M. and Pickart, R. S. and Ramsey, A. L. and Rayner, D. and Straneo, F. and Thierry, V. and Torres, D. J. and Williams, R. G. and Wilson, C. and Yang, J. and Yashayaev, I. and Zhao, J.}
}
