Growth of landfast ice and its thermal interaction with bottom sediments in the Braganzav{\r a}gen Gulf (West Spitsbergen).

Bogorodskiy, P. V., Demidov, N. E., Filchuk, K. V., Marchenko, A. V., Morozov, E. G., Nikulina, A. L., Pnyushkov, A. V. and Ryzhov, I. V. (2020) Growth of landfast ice and its thermal interaction with bottom sediments in the Braganzav{\r a}gen Gulf (West Spitsbergen). Russian Journal of Earth Sciences, 20 (6). Art.Nr. ES6005. DOI 10.2205/2020ES000718.

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Abstract

The results of ice and hydrological studies of the shallow Bay of Braganzavågen (Van Mayen Fjord Bay, West Spitsbergen Island) in March 2016 and 2018, supplemented with model calculations using a thermodynamic model, are presented. The model uses both known methods of localizing the phase transition region-the classical (frontal) for fast ice and in an extended area (two-phase zone) for bottom sediments. For real atmospheric conditions of winter 2015-2016, the new qualitative features of the process of ice formation in the adjacent layers of sea water and bottom soil are revealed. However, due to insufficient knowledge of the heat and mass transfer properties of bottom sediments, the question of quantitative estimates of the process remains open and can be clarified in special field experiments.

Document Type: Article
Keywords: West Spitsbergen, bottom sediments, energy and mass transport, ice formation, shallow-water zone, sub-ice water layer
Refereed: Yes
Open Access Journal?: Yes
Publisher: Geophysical Center of the Russian Academy of Sciences (GC RAS)
Projects: CATS
Date Deposited: 15 Jul 2021 09:52
Last Modified: 07 Jan 2022 10:03
URI: https://oceanrep.geomar.de/id/eprint/53024

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