Moored observations of the Deep Western Boundary Current in the NW Atlantic: 2004–2014

Journal of Geophysical Research: Oceans

Volumn 122, Issue 9, 2017, Pages 7488-7505

  Toole, John M ^a   Andres, Magdalena ^a   Le Bras, Isabela A ^a   Joyce, Terrence M ^a   McCartney, Michael S ^a  

^a WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

Atlantic Meridional Overturning Circulation; Deep Western Boundary Current

Indexed keywords

CONTINENTAL SLOPE; MOORING SYSTEM; OVERTURN; TIME SERIES ANALYSIS; UPPER OCEAN; WATER MASS; WESTERN BOUNDARY CURRENT;

ATLANTIC OCEAN; ATLANTIC OCEAN (NORTH); CAPE COD; LABRADOR SEA; MASSACHUSETTS; UNITED STATES;

EID: 85029428446     PISSN: 21699275     EISSN: 21699291     Source Type: Journal    
DOI: 10.1002/2017JC012984     Document Type: Article

References (56)

1. Andres, M. (2016), On the recent destabilization of the Gulf Stream Path downstream of Cape Hatteras, Geophys. Res. Lett., 43, 9836–9842, doi:10.1002/2016GL069966.
2. Andres, M., J. M. Toole, D. Torres, W. M. Smethie Jr., T. M. Joyce, and R. G. Curry (2016), Stirring by deep cyclones and the evolution of Denmark Strait Overflow Water observed at Line W, Deep Sea Res., Part I, 109, 10–26, doi:10.1016/j.dsr.2015.12.011.
3. Andres, M., J. M. Toole, D. Torres, W. M. Smethie Jr., T. M. Joyce, and R. G. Curry (2017), Corrigendum to “Stirring by deep cyclones and the evolution of Denmark Strait Overflow Water observed at Line W” [Deep Sea Res. I 109, 10–26], Deep Sea Res., Part I, 121, 245–248, doi:10.1016/j.dsr.2017.01.005.
4. Brown, O. B., P. C. Cornillon, S. R. Emmerson, and H. Mark Carle (1986), Gulf Stream warm rings: A statistical study of their behavior, Deep Sea Res., Part A, 33, 1459–1473.
5. Bryden, H. L., W. E. Johns, and P. M. Saunders (2005), Deep Western Boundary Current east of Abaco: Mean structure and transport, J. Mar. Res., 63, 35–57.
6. Bryden, H. L., B. A. King, G. D. McCarthy, and E. L. McDonagh (2014), Impact of a 30% reduction in Atlantic Meridional overturning during 2009–2010, Ocean Sci., 10, 683–691, doi:10.5194/os-10-683-2014.
7. Clarke, R. A., R. M. Hendry, and I. Yashayev (1998), A western boundary current meter array in the North Atlantic near 42°N, WOCE Newsl., 33, 33–34.
8. Cunningham, S. A., et al. (2007), Temporal variability of the Atlantic meridional overturning circulation at 26.5°N, Science, 317, 935–938, doi:10.1126/science.1141304.
9. Davis, X. J., T. M. Joyce, and Y.-O. Kwon (2017), Prediction of silver hake distribution on the Northeast U.S. shelf based on the Gulf Stream path index, Cont. Shelf Res., 138, 51–64.
10. Evans, D. G., J. Toole, G. Forget, J. D. Zika, A. C. Naveira Garabato, A. J. George Nurser, and L. Yu (2017), Recent wind-driven changes in the Atlantic meridional overturning circulation, J. Phys. Oceanogr., 47, 633–647, doi:10.1175/JPO-D-16-0089.1.
11. Flagg, C. N., M. Dunn, D.-P. Wang, H. T. Rossby, and R. L. Benway (2006), A study of the currents of the outer shelf and upper slope from a decade of shipboard ADCP observations in the Middle Atlantic Bight, J. Geophys. Res., 111, C06003, doi:10.1029/2005JC003116.
12. Forget, G., J.-M. Campin, P. Heimbach, C. N. Hill, R. M. Ponte, and C. Wunsch (2015), ECCO version 4: An integrated framework for non-linear inverse modeling and global ocean state estimation, Geosci. Model Dev., 8, 3071–3104, doi:10.5194/gmd-8-3071-2015.
13. Forget, G., J.-M. Campin, P. Heimbach, C. N. Hill, R. M. Ponte, and C. Wunsch (2016), ECCO Version 4: Second Release, MIT Libraries, Cambridge, Mass. [Available at http://hdl.handle.net/1721.1/102062.]
14. Fratantoni, P. S., and R. S. Pickart (2003), Variability of the shelf break jet in the Middle Atlantic Bight: Internally or externally forced?, J. Geophys. Res., 108(C5), 3166, doi:10.1029/2002JC001326.
15. Fuglister, F. C., and A. D. Voorhis (1965), A new method of tracking the Gulf Stream, Limnol. Oceanogr., 10, R115–R124, doi:10.4319/lo.1965.10.suppl2.r115.
16. Hansen, B., K. M. H. Larsen, H. Hátún, and S. Østerhus (2016), A stable Faroe Bank Channel overflow 1995–2015, Ocean Sci., 12, 1205–1220, doi:10.5194/os-12-1205-2016.
17. Jackett, D. R., and T. J. McDougall (1997), A neutral density variable for the world's oceans, J. Phys. Oceanogr., 27, 237–263.
18. Jackson, L. C., K. A. Peterson, C. D. Roberts, and R. A. Wood (2016), Recent slowing of Atlantic overturning circulation as a recovery from earlier strengthening, Nat. Geosci., 9, 518–522, doi:10.1038/ngeo2715.
19. Jochumsen, K., D. Quadfasel, H. Valdimarsson, and S. Jónsson (2012), Variability of the Denmark Strait overflow: Moored time series from 1996–2011, J. Geophys. Res., 117, C12003, doi:10.1029/2012JC008244.
20. Joyce, T. M. (1984), Velocity and hydrographic structure of a Gulf Stream warm-core ring, J. Phys. Oceanogr., 14(5), 936−947.
21. Joyce, T. M., and M. A. Kennelly (1985), Upper ocean velocity structure of Gulf Stream Warm Core Ring 82B, J. Geophys. Res., 90(C5), 8839−8844.
22. Joyce, T. M., C. Deser, and M. A. Spall (2000), The relation between decadal variability of subtropical mode water and the North Atlantic Oscillation, J. Clim., 13, 2250–2569.
23. Joyce, T. M., J. Dunworth-Baker, R. S. Pickart, D. Torres, and S. Waterman (2005), On the Deep Western Boundary Current south of Cape Cod, Deep Sea Res., Part II, 52, 615–625.
24. Joyce, T. M., J. M. Toole, P. Klein, and L. N. Thomas (2013), A near-inertial mode observed within a Gulf Stream warm-core ring, J. Geophys. Res. Oceans, 118, 1797–1806, doi:10.1002/jgrc.20141.
25. Kanzow, T., U. Send, W. Zenk, A. D. Chave, and M. Rhein (2006), Monitoring the integrated deep meridional flow in the tropical North Atlantic: Long-term performance of a geostrophic array, Deep Sea Res., Part I, 53, 528–546, doi:10.1016/j.dsr.2005.12.007.
26. Koehl, A. (2015), Evaluation of the GECCO2 ocean synthesis: Transports of volume, heat and freshwater in the Atlantic, Q. J. R. Meteorol. Soc., 141, 166–181, doi:10.1002/qj.2347.
27. Le Bras, I. A. (2017), Dynamics of North Atlantic Western Boundary Currents, PhD dissertation, MIT/WHOI Joint Program, 174 pp., Woods Hole Oceanographic Institution, Woods Hole, Mass.
28. Le Bras, I. A., I. Yashayaev, and J. M. Toole (2017), Tracking Labrador Sea Water property signals along the Deep Western Boundary Current, J. Geophys. Res. Oceans, 122, 5348–5366, doi:10.1002/2017JC012921.
29. Lee, T. N., W. Johns, F. Schott, and R. Zantopp (1990), Western boundary current structure and variability east of Abaco, Bahamas, at 26.5°N, J. Phys. Oceanogr., 20, 446–466.
30. Lee, T. N., W. E. Johns, R. J. Zantopp, and E. R. Fillenbaum (1996), Moored observations of western boundary current variability and thermohaline circulation at 26.5°N in the subtropical North Atlantic, J. Phys. Oceanogr., 26, 962–983.
31. McCarthy, G., E. Frajka-Williams, W. E. Johns, M. O. Baringer, C. S. Meinen, H. L. Bryden, D. Rayner, A. Duchez, C. Roberts, and S. A. Cunningham (2012), Observed interannual variability of the Atlantic meridional overturning circulation at 26.5°N, Geophys. Res. Lett., 39, L19609, doi:10.1029/2012/GL052933.
32. McCarthy, G. D., D. A. Smeed, W. E. Johns, E. Frajka-Williams, B. I. Moat, D. Rayner, M. O. Baringer, C. S. Meinen, J. Collins, and H. L. Bryden (2015), Measuring the Atlantic meridional overturning circulation at 26°N, Prog. Oceanogr., 130, 91–111, doi:10.1016/j.pocean.2014.10.006.
33. Mertens, C., M. Rhein, M. Walter, C. W. Böning, E. Behrens, D. Kieke, R. Steinfeldt, and U. Stöber (2014), Circulation and transports in the Newfoundland Basin, western subpolar North Atlantic, J. Geophys. Res. Oceans, 119, 7772–7793, doi:10.1002/2014JC010019.
34. Peña-Molino, B., T. M. Joyce, and J. M. Toole (2011), Recent changes in the Labrador Sea Water within the Deep Western Boundary Current southeast of Cape Cod, Deep Sea Res., Part I, 58, 1019–1030.
35. Peña-Molino, B., T. M. Joyce, and J. M. Toole (2012), Variability in the Deep Western Boundary Current: Local versus remote forcing, J. Geophys. Res., 117, C12022, doi:10.1029/2012JC008369.
36. Pérez-Hernández, M. D., and T. M. Joyce (2014), Two modes of Gulf Stream variability revealed in the last two decades of satellite data, J. Phys. Oceanogr., 44, 149–163, doi:10.1175/JPO-D-13-0136.1.
37. Rhein, M., D. Kieke, and R. Steinfeldt (2015), Advection of North Atlantic deep water from the Labrador Sea to the southern hemisphere, J. Geophys. Res. Oceans, 120, 2471–2487, doi:10.1002/2014JC010605.
38. Savidge, D. K., and J. M. Bane Jr. (1999a), Cyclogenisis in the deep ocean beneath the Gulf Stream: 1. Description, J. Geophys. Res., 104(C8), 18,111–18,126.
39. Savidge, D. K., and J. M. Bane Jr. (1999b), Cyclogenisis in the deep ocean beneath the Gulf Stream: 2. Dynamics, J. Geophys. Res., 104(C8), 18,127–18,140.
40. Schott, F. A., and P. Brandt (2007), Circulation and deep water export of the subpolar North Atlantic during the 1990's, in Ocean Circulation: Mechanisms and Impacts—Past and Future Changes of Meridional Overturning, edited by A. Schmittner, J. C. H. Chiang, and S. R. Hemming, pp. 91–118, AGU, Washington, D. C., doi:10.1029/173GM08.
41. Schott, F. A., R. Zantopp, L. Stramma, M. Dengler, J. Fischer, and M. Wibaux (2004), Circulation and deep-water export at the western exit of the subpolar North Atlantic, J. Phys. Oceanogr., 34, 817–843.
42. Schott, F. A., J. Fischer, M. Dengler, and R. Zantopp (2006), Variability of the Deep Western Boundary Current east of the Grand Banks, Geophys. Res. Lett., 33, L21S07, doi:10.1029/2006GL026563.
43. Send, U., M. Lankhorst, and T. Kanzow (2011), Observation of decadal change in the Atlantic meridional overturning circulation using 10 years of continuous transport data, Geophys. Res. Lett., 38, L24606, doi:10.1029/2011GL049801.
44. Silverthorne, K. E., and J. M. Toole (2008), Seasonal kinetic energy variability of near-inertial motions, J. Phys. Oceanogr., 39, 1035–1049, doi:10.1175/2008JPO3920.1.
45. Smeed, D. A., et al. (2014), Observed decline of the Atlantic meridional overturning circulation 2004–2012, Ocean Sci., 10, 29–38, doi:10.5194/osd-10-29-2014.
46. Smith, J. N., W. M. Smethie Jr., I. Yashayev, R. Curry, and K. Azetsu-Scott (2016), Time series measurements of transient tracers and tracer-derived transport in the Deep Western Boundary Current between the Labrador Sea and the subtropical Atlantic Ocean at Line W, J. Geophys. Res. Oceans, 121, 8115–8138, doi:10.1002/2016JC011759.
47. Srokosz, M. A., and H. L. Bryden (2015), Observing the Atlantic meridional overturning circulation yields a decade of inevitable surprises, Science, 348, 1255575, doi:10.1126/science.1255575.
48. Stommel, H. M. (1957), A survey of ocean current theory, Deep Sea Res., 4, 148–184.
49. Thompson, R. (1971), Topographic Rossby Waves at a site north of the Gulf Stream, Deep Sea Res. Oceanogr. Abstr., 18, 1–19.
50. Toole, J. M., R. G. Curry, T. M. Joyce, M. McCartney, and B. Peña-Molino (2011), Transport of the North Atlantic Deep Western Boundary Current about 39°N, 70°W: 2004–2008, Deep Sea Res., Part II, 58, 1768–1780.
51. Watts, D. R. (1991), Equatorward currents in temperatures 1.8–6.0°C on the continental slope in the Mid-Atlantic Bight, in Deep Convection and Deep Water Formation in the Ocean, edited by P. C. Chu and J. C. Gascard, pp.183–196, Elsevier Science, Amsterdam; New York.
52. Willis, J. K. (2010), Can in situ floats and satellite altimeters detect long-term changes in Atlantic Ocean overturning?, Geophys. Res. Lett., 37, L06602, doi:10.1029/2010GL042372.
53. Yang, J. (2015), Local and remote wind stress forcing of the seasonal variability of the Atlantic meridional overturning circulation (AMOC) transport at 26.5°N, J. Geophys. Res. Oceans, 120, 2488–2503, doi:10.1002/2014JC010317.
54. Yashayaev, I., and J. W. Loder (2016), Recurrent replenishment of Labrador Sea Water and associated decadal-scale variability, J. Geophys. Res. Oceans, 121, 8095–8114, doi:10.1002/2016JC012046.
55. Zantopp, R., J. Fischer, M. Visbeck, and J. Karstensen (2017), From interannual to decadal—17 years of boundary current transports at the exit of the Labrador Sea, J. Geophys. Res. Oceans, 122, 1724–1748, doi:10.1002/2016JC012271.
56. Zou, S., and M. S. Lozier (2016), Breaking the linkage between Labrador Sea Water production and its advective export to the subtropical gyre, J. Phys. Oceanogr., 46, 2169–2182, doi:10.1175/JPO-D-15-0210.1.