04 Oct 2022
04 Oct 2022
Status: this preprint is currently under review for the journal ESSD.

Annual hydrographic variability in Antarctic coastal waters infused with glacial inflow

Maria Osińska1, Kornelia Anna Wójcik-Długoborska2, and Robert Józef Bialik2 Maria Osińska et al.
  • 1Institute of Oceanography, University of Gdańsk, Piłsudskiego 46, 81-378 Gdynia, Poland
  • 2Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland

Abstract. During the thirty-eight months between December 2018 and January 2022, multiparameter hydrographic measurements were taken at thirty-one sites within Admiralty Bay, King George Island, Antarctica. These records consisted of water column measurements (down to 100 m) of temperature, conductivity, turbidity, and pH as well as the dissolved oxygen, dissolved organic matter, chlorophyll A and phycoerythrin contents. The sites were chosen due to their variable distances from glacial fronts and open ocean waters. Fifteen sites were localized within smaller glacial coves, with waters highly impacted by glacial infusions; seven sites were located in the open waters of the main body of Admiralty Bay; and nine were located in intermediate conditions of the Ezcurra Inlet. The final dataset consists of measurements carried out over 142 separate days, with an average 3.74 measurements per month. However, data were not collected regularly throughout the year and were collected less frequently during winter, though data were gathered for all but two winter months. On average, each site was investigated 98.2 times. Due to calibration issues, absolute values of optically measured properties occasionally show impossible negative values, but the relative distributions of these values remain valid. Variabilities in the measured properties each season and throughout the whole duration of the project reveal regular oscillations as well as possible long-term trends.

Maria Osińska et al.

Status: open (until 29 Nov 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2022-320', L. Fiorani, 01 Nov 2022 reply
    • AC1: 'Reply on RC1', Robert Bialik, 02 Nov 2022 reply
  • RC2: 'Comment on essd-2022-320', Mattias Cape, 04 Nov 2022 reply
    • AC2: 'Reply on RC2', Robert Bialik, 13 Nov 2022 reply
  • RC3: 'Comment on essd-2022-320', Anonymous Referee #3, 27 Nov 2022 reply
    • AC3: 'Reply on RC3', Robert Bialik, 28 Nov 2022 reply

Maria Osińska et al.

Data sets

Water conductivity, salinity, temperature, turbidity, pH, fluorescent dissolved organic matter (fDOM), optical dissolved oxygen (ODO), chlorophyll a and phycoerythrin measurements in Admiralty Bay, King George Island, from Dec 2018 to Jan 2022 Osińska, Maria; Wójcik-Długoborska, Kornelia Anna; Bialik, Robert Józef

Maria Osińska et al.


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Short summary
In glacial bay in Antarctica for 38 months water properties were investigated in 31 different spots. We measured: temperature, conductivity, turbidity, and pH as well as the dissolved oxygen, dissolved organic matter, chlorophyll A and phycoerythrin contents, up to 100 m depth. These investigations were done 142 times, in all seasons of the year, which makes this a unique dataset of information about changes in polar water properties from season to season and in the long-term.