On the Flow of Modified Warm Deep Water toward the Filchner Ronne Ice Shelf, Weddell Sea, Antarctica

Enhanced basal melt rates have been observed at many ice shelves around Antarctica in the last decade, which has mostly been attributed to an increased transport of warm mid-depth water onto the continental shelf and ultimately into the ice shelf cavities. This thesis investigates the seasonal flow...

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Bibliographic Details
Main Author: Ryan, Svenja
Other Authors: Kanzow, Torsten, Rhein, Monika
Format: Doctoral or Postdoctoral Thesis
Language:English
Published: Universität Bremen 2018
Subjects:
Antarctica
Weddell Sea
Filchner Ronne Ice Shelf
Modified Warm Deep Water
Warm inflow
500
500 Science
ddc:500
Filchner Trough
Filchner-Ronne-Schelfeis
Ronne Ice Shelf
Weddell
Antarc*
Antarktis*
Filchner-Ronne Ice Shelf
Ice Shelf
Ice Shelves
Schelfeis*
Online Access:https://media.suub.uni-bremen.de/handle/elib/1513
https://nbn-resolving.org/urn:nbn:de:gbv:46-00106826-14
Description
Summary:Enhanced basal melt rates have been observed at many ice shelves around Antarctica in the last decade, which has mostly been attributed to an increased transport of warm mid-depth water onto the continental shelf and ultimately into the ice shelf cavities. This thesis investigates the seasonal flow of warm water toward the Filchner Ronne Ice Shelf (FRIS), which is by volume the largest ice shelf in Antarctica. While today the large continental shelf in front of FRIS is covered with cold and dense water, model studies have suggested the potential for an increased flow of Modified Warm Deep Water (MWDW) toward and into the FRIS cavity, via the Filchner Trough. Moored time series, ship-based CTD data and numerical modelling are used to study the seasonal hydrography and controlling processes on the southern Weddell Sea continental shelf.

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