Assessment of the representation of Antarctic Bottom Water properties in the ECCO2 reanalysis
Summary: We analyzed the ability of the ECCO2 reanalysis to represent the hydrographic properties and variability of Antarctic Bottom Water in the Southern Ocean. After 2004, the opening of an oceanic polynya in the Weddell Sea sector and consequent intense dense water production leads to an unrealistic scenario. Even before 2004, bottom waters are warmer and less dense than expected, while the absolute volume transport and velocity estimates are underrepresented.
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation
Summary: Regional sea surface height (SSH) changes due to an abrupt weakening of the Atlantic meridional overturning circulation (AMOC) are simulated with a high- and low-resolution model. A rapid decrease of the AMOC in the high-resolution version induces shorter return times of several specific regional and coastal extremes in North Atlantic SSH than in the low-resolution version. This effect is caused by a change in main eddy pathways associated with a change in separation latitude of the Gulf Stream.
S.-E. Brunnabend, H. A. Dijkstra, M. A. Kliphuis, B. van Werkhoven, H. E. Bal, F. Seinstra, J. Maassen, and M. van Meersbergen Ocean Sci., 10, 881-891, 2014 AbstractFinal Revised Paper (PDF, 6819 KB)Discussion Paper (OSD)
07 Nov 2014
Effects of bottom topography on dynamics of river discharges in tidal regions: case study of twin plumes in Taiwan Strait
Variability of water mass properties in the Strait of Sicily in summer period of 1998–2013
A. Bonanno, F. Placenti, G. Basilone, R. Mifsud, S. Genovese, B. Patti, M. Di Bitetto, S. Aronica, M. Barra, G. Giacalone, R. Ferreri, I. Fontana, G. Buscaino, G. Tranchida, E. Quinci, and S. Mazzola Ocean Sci., 10, 759-770, 2014 AbstractFinal Revised Paper (PDF, 5222 KB)Discussion Paper (OSD)
02 Oct 2014
Characterisation and quantification of regional diurnal SST cycles from SEVIRI
Heat loss from the Atlantic water layer in the northern Kara Sea: causes and consequences
I. A. Dmitrenko, S. A. Kirillov, N. Serra, N. V. Koldunov, V. V. Ivanov, U. Schauer, I. V. Polyakov, D. Barber, M. Janout, V. S. Lien, M. Makhotin, and Y. Aksenov Ocean Sci., 10, 719-730, 2014 AbstractFinal Revised Paper (PDF, 6593 KB)Discussion Paper (OSD)
15 Aug 2014
Weighing the ocean with bottom-pressure sensors: robustness of the ocean mass annual cycle estimate