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Volume 21
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Article

Glacier Geometry Changes in the Western Shore of Admiralty Bay, King George Island over the Last Decades

by
Mariusz Pasik
1,
Krzysztof Bakuła
1,
Sebastian Różycki
1,
Wojciech Ostrowski
1,
Maria Elżbieta Kowalska
1,
Anna Fijałkowska
1,
Marcin Rajner
1,
Sławomir Łapiński
1,*,
Ireneusz Sobota
2,
Marek Kejna
3 and
Katarzyna Osińska-Skotak
1
1
Faculty Geodesy and Cartography, Warsaw University of Technology, Pl. Politechniki 1, 00-661 Warszawa, Poland
2
Faculty of Earth Sciences and Spatial Management, Department of Hydrology and Water Management, Polar Research Center, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
3
Faculty of Earth Sciences and Spatial Management, Department of Meteorology and Climatology, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(4), 1532; https://doi.org/10.3390/s21041532
Submission received: 31 December 2020 / Revised: 3 February 2021 / Accepted: 19 February 2021 / Published: 23 February 2021
(This article belongs to the Special Issue Remote Sensors in Polar Regions Land Surface Monitoring)
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Abstract

This paper presents changes in the range and thickness of glaciers in Antarctic Specially Protected Area (ASPA) No. 128 on King George Island in the period 1956–2015. The research indicates an intensification of the glacial retreat process over the last two decades, with the rate depending on the type of glacier front. In the period 2001–2015, the average recession rate of the ice cliffs of the Ecology Glacier and the northern part of the Baranowski Glacier was estimated to be approximately 15–25 m a−1 and 10–20 m a−1, respectively. Fronts of Sphinx Glacier and the southern part of the Baranowski Glacier, characterized by a gentle descent onto land, show a significantly lower rate of retreat (up to 5–10 m a−1 1). From 2001 to 2013, the glacier thickness in these areas decreased at an average rate of 1.7–2.5 m a−1 for the Ecology Glacier and the northern part of the Baranowski Glacier and 0.8–2.5 m a−1 for the southern part of the Baranowski Glacier and Sphinx Glacier. The presented deglaciation processes are related to changes of mass balance caused by the rapid temperature increase (1.0 °C since 1948). The work also contains considerations related to the important role of the longitudinal slope of the glacier surface in the connection of the glacier thickness changes and the front recession.
Keywords: glacier recession; glacier; glacier elevation change; glacier thickness change; climate change; DEM; image matching; archival images glacier recession; glacier; glacier elevation change; glacier thickness change; climate change; DEM; image matching; archival images

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MDPI and ACS Style

Pasik, M.; Bakuła, K.; Różycki, S.; Ostrowski, W.; Kowalska, M.E.; Fijałkowska, A.; Rajner, M.; Łapiński, S.; Sobota, I.; Kejna, M.; et al. Glacier Geometry Changes in the Western Shore of Admiralty Bay, King George Island over the Last Decades. Sensors 2021, 21, 1532. https://doi.org/10.3390/s21041532

AMA Style

Pasik M, Bakuła K, Różycki S, Ostrowski W, Kowalska ME, Fijałkowska A, Rajner M, Łapiński S, Sobota I, Kejna M, et al. Glacier Geometry Changes in the Western Shore of Admiralty Bay, King George Island over the Last Decades. Sensors. 2021; 21(4):1532. https://doi.org/10.3390/s21041532

Chicago/Turabian Style

Pasik, Mariusz, Krzysztof Bakuła, Sebastian Różycki, Wojciech Ostrowski, Maria Elżbieta Kowalska, Anna Fijałkowska, Marcin Rajner, Sławomir Łapiński, Ireneusz Sobota, Marek Kejna, and et al. 2021. "Glacier Geometry Changes in the Western Shore of Admiralty Bay, King George Island over the Last Decades" Sensors 21, no. 4: 1532. https://doi.org/10.3390/s21041532

APA Style

Pasik, M., Bakuła, K., Różycki, S., Ostrowski, W., Kowalska, M. E., Fijałkowska, A., Rajner, M., Łapiński, S., Sobota, I., Kejna, M., & Osińska-Skotak, K. (2021). Glacier Geometry Changes in the Western Shore of Admiralty Bay, King George Island over the Last Decades. Sensors, 21(4), 1532. https://doi.org/10.3390/s21041532

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