Journal cover Journal topic
Ocean Science An interactive open-access journal of the European Geosciences Union

Journal metrics

  • IF value: 2.821 IF 2.821
  • IF 5-year<br/> value: 3.048 IF 5-year
    3.048
  • CiteScore<br/> value: 2.90 CiteScore
    2.90
  • SNIP value: 1.191 SNIP 1.191
  • SJR value: 1.885 SJR 1.885
  • IPP value: 2.589 IPP 2.589
  • h5-index value: 25 h5-index 25
https://doi.org/10.5194/os-2016-89
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
13 Dec 2016
Review status
A revision of this discussion paper was accepted for the journal Ocean Science (OS) and is expected to appear here in due course.
Properties and mass transport differences across the Falkland Plateau between 1999 and 2010
M. Dolores Pérez-Hernández1,5, Alonso Hernández-Guerra1, Isis Comas-Rodríguez1, Verónica M. Benítez-Barrios1, Eugenio Fraile-Nuez2, Josep L. Pelegrí3, and Alberto C. Naveira-Garabato4 1Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas, Spain
2Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Santa Cruz de Tenerife, Spain
3Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas, Barcelona, Spain
4University of Southampton, National Oceanography Centre, Southampton, United Kingdom
5Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, USA
Abstract. Decadal differences in the Falkland Plateau are studied from full-depth hydrographic data collected during the ALBATROSS (April 1999) and MOC2-Austral (February 2010) cruises. Differences in the upper 100 dbar are due to changes in the seasonal thermocline, as the ALBATROSS cruise took place in the austral fall while the MOC-Austral in summer. The intermediate water masses seem to be very sensible to the wind conditions existing on their formation area, showing cooling and freshening for the decade as consequence of a higher Antarctic Intermediate Water (AAIW) contribution and of a decrease of the Subantarctic Mode Water (SAMW) stratum. The deeper layers do not exhibit any significant change in the water masses properties. The Subantarctic Front (SAF) in 1999 is observed at 52.2–54.8° W with a relative mass transport of 32.6 Sv. In contrast, the SAF gets wider in 2010, stretching from 51.1° W to 57.2° W (the Falkland Islands), and weakening to 17.9 Sv. Changes in the SAF are mainly affecting the northward flow of Subantarctic Surface Water (SASW), SAMW and AAIW/ Antarctic Surface Water (AASW). The Polar Front (PF) carries 24.9 Sv in 1999 (49.8–44.4° W), while in 2010 (49.9–49.2° W) it narrows and strengthens to 37.3 Sv.

Citation: Pérez-Hernández, M. D., Hernández-Guerra, A., Comas-Rodríguez, I., Benítez-Barrios, V. M., Fraile-Nuez, E., Pelegrí, J. L., and Naveira-Garabato, A. C.: Properties and mass transport differences across the Falkland Plateau between 1999 and 2010, Ocean Sci. Discuss., https://doi.org/10.5194/os-2016-89, in review, 2016.
M. Dolores Pérez-Hernández et al.
M. Dolores Pérez-Hernández et al.

Viewed

Total article views: 260 (including HTML, PDF, and XML)

HTML PDF XML Total BibTeX EndNote
206 26 28 260 5 26

Views and downloads (calculated since 13 Dec 2016)

Cumulative views and downloads (calculated since 13 Dec 2016)

Viewed (geographical distribution)

Total article views: 260 (including HTML, PDF, and XML)

Thereof 258 with geography defined and 2 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 24 Jun 2017
Publications Copernicus
Download
Short summary
The decadal differences between the ALBATROSS (April 1999) and MOC2-Austral (February 2010) hydrographic cruises are analyzed. Changes in the intermediate water masses beneath seem to be very sensible to the wind conditions existing on their formation area. The Subantarctic Fronts is wider and weaker in 2010 than in 1999, while the Polar Front remains in the same position and strengthens.
The decadal differences between the ALBATROSS (April 1999) and MOC2-Austral (February 2010)...
Share