@article {RN99,
	title = {Transport Variability of the Irminger Sea Deep Western Boundary Current From a Mooring Array},
	journal = {Journal of Geophysical Research-Oceans},
	volume = {124},
	number = {5},
	year = {2019},
	pages = {3246-3278},
	type = {Journal Article},
	abstract = {The Deep Western Boundary Current in the subpolar North Atlantic is the lower limb of the Atlantic Meridional Overturning Circulation and a key component of the global climate system. Here, a mooring array deployed at 60{\textdegree}N in the Irminger Sea, between 2014 and 2016, provides the longest continuous record of total Deep Western Boundary Current volume transport at this latitude. The 1.8-year averaged transport of water denser than σθ = 27.8 kg/m3 was -10.8 {\textpm} 4.9 Sv (mean {\textpm} 1 std; 1 Sv = 106 m3/s). Of this total, we find -4.1 {\textpm} 1.4 Sv within the densest layer (σθ > 27.88 kg/m3) that originated from the Denmark Strait Overflow. The lighter North East Atlantic Deep Water layer (σθ = 27.8{\textendash}27.88 kg/m3) carries -6.5 {\textpm} 7.7 Sv. The variability in transport ranges between 2 and 65 days. There is a distinct shift from high to low frequency with distance from the East Greenland slope. High-frequency fluctuations (2{\textendash}8 days) close to the continental slope are likely associated with topographic Rossby waves and/or cyclonic eddies. Here, perturbations in layer thickness make a significant (20{\textendash}60\%) contribution to transport variability. In deeper water, toward the center of the Irminger Basin, transport variance at 55 days dominates. Our results suggest that there has been a 1.8 Sv increase in total transport since 2005{\textendash}2006, but this difference can be accounted for by a range of methodological and data limitation biases},
	issn = {2169-9275},
	doi = {10.1029/2018JC014730},
	author = {Hopkins, J. E. and Holliday, N. P. and Rayner, D. and Houpert, L. and Le Bras, I. and Straneo, F. and Wilson, C. and Bacon, S.}
}
