Abstract
The anomalous thermohaline properties of the core of the Labrador Sea water (LSW), a product of winter convection resulted from the ocean–winter interaction, which were recorded in the Irminger Sea in 2014 and 2015, are discussed. It is found that, in the summer of 2015, the LSW filled the entire deepwater basin in the south of the sea down to a depth of 1300 m over the periphery of the Irminger gyral, and down to a depth of 1800 m, in the anticyclone eddy formed in early June of 2015. The maximum density of the LSW core here was 27.75 σθ. Such deep and intense winter convection in the Irminger Sea was last recorded 20 years ago. As a result, the temperature of the LSW dropped to values observed in the years 2002 and 2007, but its average salinity remained high. The LSW that have been formed in recent years are reported to have great amplitude and nonmonotonic variability of the properties.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. S. Pickart, F. Straneo, and G. W. K. Moore, Deep-Sea Res. 50, 23–52 (2003).
K. Vage, R. S. Pickart, V. Thierry, G. Reverdin, C.M. Lee, B. Petries, T. A. Agnews, A. Wong, and H. Ribergaard, Nat. Geosci. 2 (1), 67–72 (2009).
S. V. Gladyshev, V. S. Gladyshev, A. S. Falina, and A. A. Sarafanov, Oceanology 56 (2016) (in press).
R. A. Clarke and A. R. Coote, J. Phys. Oceanogr. 18 (3), 469–480 (1988).
I. Yashayaev, H. M. van Aken, N. P. Holliday, and M. Bersch, Geophys. Res. Lett. 34, L22605 (2007). doi 10.1029/2007GL031812
H. M. van Aken, M. F. de Jong, and I. Yashayaev, Deep-Sea Res. 58, 505–523 (2011). doi 10.1016/j.dsr.2011.02.008
J. R. N. Lazier, R. Hendry, A. Clarke, I. Yashayaev, and P. Rhines, Deep-Sea Res. 49, 1819–1835 (2002).
A. Falina, A. Sarafanov, and A. Sokov, J. Geophys. Res. 112, C01006 (2007). doi 10.1029/2005JC003348
S. Bacon, W. J. Gould, and Y. L. Jia, Geophys. Res. Lett. 30 (5), 1246 (2003). doi 10.1029/2002GL016271
L. R. Centurioni and W. J. Gould, J. Mar. Res. 62, 313–336 (2004).
M. F. de Jong, H. M. van Aken, K. Vage, and R. S. Pickart, Deep-Sea Res. 63, 36–51 (2012). doi 10.1016/j.dsr.2012.01.003
K. Vage and R. S. Pickart, J. Phys. Oceanogr. 38 (3), 541–565 (2008). doi 10.1175/2007JPO3678.1
A. Sarafanov, A. Sokov, A. Demidov, and A. Falina, Geophys. Res. Lett. 34, L23609 (2007). doi 10/1029/2007GL031074
R. S. Pickart, M. A. Spall, M. H. Ribergaard, G. W. K. Moore, and R. F. Milliff, Nature 424, 152–156 (2003).
S. K. Gulev and K. P. Belyaev, J. Clim. 25, 184–206 (2012). doi 10/1175/2011JCLI4211.1
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © S.V. Gladyshev, V.S. Gladyshev, S.K. Gulev, A.V. Sokov, 2016, published in Doklady Akademii Nauk, 2016, Vol. 469, No. 3, pp. 351–355.
Rights and permissions
About this article
Cite this article
Gladyshev, S.V., Gladyshev, V.S., Gulev, S.K. et al. Anomalously deep convection in the Irminger Sea during the winter of 2014–2015. Dokl. Earth Sc. 469, 766–770 (2016). https://doi.org/10.1134/S1028334X16070229
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1028334X16070229