Multibeam bathymetry and CTD measurements in two fjord systems in southeastern Greenland

We present bathymetry and hydrological observations collected in the summer of 2014 from two fjord systems in southeastern Greenland with a multibeam sonar system. Our results provide a detailed bathymetric map of the fjord complex around the island of Skjoldungen in Skjoldungen Fjord and the outer...

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Bibliographic Details
Published in:Earth System Science Data
Main Authors: K. K. Kjeldsen, R. W. Weinrebe, J. Bendtsen, A. A. Bjørk, K. H. Kjær
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2017
Subjects:
Environmental sciences
GE1-350
Geology
QE1-996.5
Arctic
Arctic Ocean
Greenland
Skjoldungen
Timmiarmiut
Timmiarmiut Fjord
Online Access:https://doi.org/10.5194/essd-9-589-2017
https://doaj.org/article/99fec6bd556c4e9fb5ccc1366661bd3c
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Summary:We present bathymetry and hydrological observations collected in the summer of 2014 from two fjord systems in southeastern Greenland with a multibeam sonar system. Our results provide a detailed bathymetric map of the fjord complex around the island of Skjoldungen in Skjoldungen Fjord and the outer part of Timmiarmiut Fjord and show far greater depths compared to the International Bathymetric Chart of the Arctic Ocean. The hydrography collected shows different properties in the fjords with the bottom water masses below 240 m in Timmiarmiut Fjord being 1–2 °C warmer than in the two fjords around Skjoldungen, but data also illustrate the influence of sills on the exchange of deeper water masses within fjords. Moreover, evidence of subglacial discharge in Timmiarmiut Fjord, which is consistent with satellite observations of ice mélange set into motion, adds to our increasing understanding of the distribution of subglacial meltwater. Data are available through the PANGAEA website at https://doi.pangaea.de/10.1594/PANGAEA.860627 .

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