Assessment of the representation of Antarctic Bottom Water properties in the ECCO2 reanalysis

Azaneu, M.; Kerr, R.; Mata, M. M.

doi:https://doi.org/10.5194/os-10-923-2014

Articles | Volume 10, issue 6

https://doi.org/10.5194/os-10-923-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/os-10-923-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 6

Research article

|

21 Nov 2014

Research article |

| 21 Nov 2014

Assessment of the representation of Antarctic Bottom Water properties in the ECCO2 reanalysis

M. Azaneu, R. Kerr, and M. M. Mata

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Final revised paper (published on 21 Nov 2014)
Supplement to the final revised paper
Preprint (discussion started on 28 Mar 2014)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C163: 'Review of os-2014-12 "Assessment of the ECCO2 reanalysis on the representation of Antarctic Bottom Water properties" by Azaneu et al.', Anonymous Referee #1, 02 Apr 2014
- AC C609: 'Response Letter to reviewer #1', Marina Azaneu, 21 Jul 2014
RC C298: 'Reviewer 2: keep everything about the polynya for another paper', Anonymous Referee #2, 02 May 2014
- AC C610: 'Response Letter to reviewer #2', Marina Azaneu, 21 Jul 2014

Short 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.