2023
DOI: 10.5194/essd-15-607-2023
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Annual hydrographic variability in Antarctic coastal waters infused with glacial inflow

Abstract: Abstract. During the 38 months between December 2018 and January 2022, multiparameter hydrographic measurements were taken at 31 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 sit… Show more

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Cited by 4 publications
(5 citation statements)
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“…No evidence of fresher water plumes in subsurface layers was detected (Fig. 2 h and more details in Osińska et al, 2023). Hence, the GMW continuously exhibits the highest buoyancy among the water masses in the AB region, a finding that has been corroborated by prior investigations conducted in the area (Meredith et al, 2018;Monien et al, 2017;Osińska et al, 2021).…”
Section: Results Analysissupporting
confidence: 77%
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“…No evidence of fresher water plumes in subsurface layers was detected (Fig. 2 h and more details in Osińska et al, 2023). Hence, the GMW continuously exhibits the highest buoyancy among the water masses in the AB region, a finding that has been corroborated by prior investigations conducted in the area (Meredith et al, 2018;Monien et al, 2017;Osińska et al, 2021).…”
Section: Results Analysissupporting
confidence: 77%
“…The typical density anomaly of water entering through the open boundary and that of the meltwater is σ=27.4 kg/m 3 (at S=34.1 PSU and T=0.2 ˚C) and σ=0 kg/m 3 (at S=0 PSU and manuscript submitted to JGR Oceans T=0˚C), respectively. The highest recorded value of surface water temperature observed in AB in the summer was 3.54 ˚C, which was exceptionally high (Osińska et al, 2023); the corresponding density anomaly at S=32.56 PSU is σ=26.0 kg/m 3 . Therefore, the contribution of temperature to the net variability of water density in AB is minor.…”
Section: Model Setupmentioning
confidence: 86%
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“…Asimismo, se tomaron registros en Estrecho de Bransfield con el perfilador CTD. Adicionalmente, se descargaron y procesaron los datos fisicoquímicos de Bahía Almirantazgo recolectados durante enero de 2020 en las 3 profundidades disponibles en el repositorio de PANGEA (https://doi.org/10.1594/PANGAEA.947909) obtenidos por Osińska et al (2023).…”
Section: Medición De Parámetros Fisicoquímicosunclassified