English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  Variability and remote controls of the warm-water halo and Taylor cap at Maud rise

Gülk, B., Roquet, F., Naveira Garabato, A. C., Narayanan, A., Rousset, C., Madec, G. (2023): Variability and remote controls of the warm-water halo and Taylor cap at Maud rise, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2594

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019295 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019295_2
Genre: Conference Paper

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Gülk, Birte1, Author
Roquet, Fabien1, Author
Naveira Garabato, Alberto C.1, Author
Narayanan, Aditya1, Author
Rousset, Clément1, Author
Madec, Gurvan1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

Content

show
hide
Free keywords: -
 Abstract: The region of Maud Rise, a seamount in the Weddell Sea, is known for the occurrence of irregular polynya openings during the winter months. Hydrographic observations have shown the presence of a warmer water mass below the mixed layer along the seamount’s flanks, commonly termed the warm-water Halo, surrounding a colder region above the rise, the Taylor Cap. A combination of observational data sets, an eddy-permitting reanalysis product and a regional high-resolution configuration allows to investigate the properties of these features and shows a strong interannual variability. A warming of deep waters is observed in the Taylor Cap during the years preceding the opening of the Polynya in 2016 and 2017, starting in 2011. By analyzing regional simulations, we are able to demonstrate that most of the observed variability in the warm-water Halo is forced remotely by advection of Weddell Gyre deep waters in the region surrounding Maud Rise. Deep water anomalies found in the Halo are retroflected along the inner flank of the Halo and from there transported into the Taylor Cap by eddies within the next six months. In addition to the preconditioning of the ocean preceding the Polynya opening, we investigate the role of thermobaricity in the region of Maud Rise in the period before the Polynya opening by implementing the eddy-diffusivity mass-flux parameterization in 1D simulations and the regional configuration.

Details

show
hide
Language(s): eng - English
 Dates: 2023
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-2594
 Degree: -

Event

show
hide
Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

Legal Case

show

Project information

show

Source 1

show
hide
Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -