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Subglacial topography and thickness of ice caps on the Argentine Islands

Published online by Cambridge University Press:  29 November 2019

Jānis Karušs Open the ORCID record for Jānis Karušs [Opens in a new window] ,
Kristaps Lamsters Open the ORCID record for Kristaps Lamsters [Opens in a new window] ,
Anatolii Chernov Open the ORCID record for Anatolii Chernov [Opens in a new window] ,
Māris Krievāns Open the ORCID record for Māris Krievāns [Opens in a new window]  and
Jurijs Ješkins Open the ORCID record for Jurijs Ješkins [Opens in a new window]
Jānis Karušs*
Affiliation:
University of Latvia, Faculty of Geography and Earth Sciences, Jelgavas Street 1, Riga, LV-1004, Latvia
Kristaps Lamsters
Affiliation:
University of Latvia, Faculty of Geography and Earth Sciences, Jelgavas Street 1, Riga, LV-1004, Latvia
Anatolii Chernov
Affiliation:
Taras Shevchenko National University of Kyiv, Institute of Geology, Vasylkivska Street 90, Kiev, 03022, Ukraine State Institution National Antarctic Scientific Center, Ministry of Education and Science of Ukraine, 16 Taras Shevchenko Blvd, Kiev, 01601, Ukraine
Māris Krievāns
Affiliation:
University of Latvia, Faculty of Geography and Earth Sciences, Jelgavas Street 1, Riga, LV-1004, Latvia
Jurijs Ješkins
Affiliation:
University of Latvia, Faculty of Geography and Earth Sciences, Jelgavas Street 1, Riga, LV-1004, Latvia
*
janis.karuss@lu.lv
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Abstract

This study presents the first subglacial topography and ice thickness models of the largest ice caps of the Argentine Islands, Wilhelm Archipelago, West Antarctica. During this study, ground-penetrating radar was used to map the thickness and inner structure of the ice caps. Digital surface models of all studied islands were created from aerial images obtained with a small-sized unmanned aerial vehicle and used for the construction of subglacial topography models. Ice caps of the Argentine Islands cover ~50% of the land surface of the islands on average. The maximum thickness of only two islands (Galindez and Skua) exceeds 30 m, while the average thickness of all islands is only ~5 m. The maximum ice thickness reaches 35.3 m on Galindez Island. The ice thickness and glacier distribution are mainly governed by prevailing wind direction from the north. This has created the prominent narrow ice ridges on Uruguay and Irizar islands, which are not supported by topographic obstacles, as well as the elongated shape of other ice caps. The subglacial topography of the ice caps is undulated and mainly dependent on the geological structure and composition of magmatic rocks.

Keywords

Antarcticaground-penetrating radarpolar regionsunmanned aerial vehicleWilhelm Archipelago
Type
Physical Sciences
Information
Antarctic Science , Volume 31 , Issue 6 , December 2019 , pp. 332 - 344
Copyright
Copyright © Antarctic Science Ltd 2019 

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References

Arigony-Neto, J., Skvarca, P., Marinsek, S., Braun, M., Humbert, A., Júnior, C.W.M. & Jaña, R. 2014. Monitoring glacier changes on the Antarctic Peninsula. In Kargel, J.S., Leonard, G.J., Bishop, M.P., Kääb, A. & Raup, B.H., eds. Global land ice measurements from space. Berlin: Springer, 717–741.Google Scholar
Bakhmutov, V.G. & Shpyra, V. 2011. Paleomagnetism of Late Cretaceous–Paleocene igneous rocks from western part of Antarctic Peninsula (Argentine Islands archipelago). Geological Quarterly, 55, 285–300.Google Scholar
Bakhmutov, V.G., Vaschenko, V.N., Grischenko, V.F., Korchagin, I.N., Levashov, S.P. & Pishchany, Y.M. 2006. Methods and results of glaciers strength of small Wiggins (Antarctic Peninsula) and ‘Domashnij’ (Galindez Island). Ukrainian Antarctic Journal, 4–5, 47–51.Google Scholar
Benjumae, B., Macharet, Y.Y., Navarro, F.J. & Teixidó, T. 2003. Estimation of water content in a temperate glacier from radar and seismic sounding data. Annals of Glaciology, 37, 317–324.Google Scholar
Blindow, N., Suckro, S.K., Rückamp, M., Braun, M., Schindler, M., Breuer, B., et al. 2010. Geometry and thermal regime of the King George Island ice cap, Antarctica, from GPR and GPS. Annals of Glaciology, 51, 103–109.Google Scholar
Bradford, J.H. & Harper, J.T. 2005. Wave field migration as a tool for estimating spatially continuous radar velocity and water content in glaciers. Geophysical Research Letters, 32, L08502.Google Scholar
Chernov, A.P. 2017. Informativeness of ground penetrating radar method for investigations of the glaciers on Galindez, Winter and Skua islands (the Argentine Islands, results for the period April to November 2017). Ukrainian Antarctic Journal, 16, 29–36.Google Scholar
Chernov, A.P., Karušs, J., Lamsters, K., Krievāns, M. & Otruba, Y. 2018. First results of glacier monitoring on Woozle Hill (Galindez Island, the Argentine Islands, Antarctica) for the period April 2017–August 2018. In 12th International Conference on Monitoring of Geological Processes and Ecological Condition of the Environment. Houten: European Association of Geoscientists and Engineers, 10.3997/2214-4609.201803152.Google Scholar
Cisak, J., Milinevsky, G., Danylevsky, V., Glotov, V., Chizhevsky, V., Kovalenok, S., et al. 2008. Atmospheric impact on GNSS observations, sea level change investigations and GPS-photogrammetry ice cap survey at Vernadsky Station in Antarctic Peninsula. In Capra, A. and Dietrich, R., eds. Geodetic and geophysical observations in Antarctica. Berlin: Springer, 191–209.Google Scholar
Cook, A.J., Holland, P.R., Meredith, M.P., Murray, T., Luckman, A. & Vaughan, D.G. 2016. Ocean forcing of glacier retreat in the western Antarctic Peninsula. Science, 353, 283–286.Google Scholar
Davies, B.J., Hambrey, M.J., Smellie, J.L., Carrivick, J.L. & Glasser, N.F. 2012. Antarctic Peninsula ice sheet evolution during the Cenozoic Era. Quaternary Science Reviews, 31, 30–66.Google Scholar
Elliot, D.H. 1964. The petrology of the Argentine Islands. BAS Scientific Reports, 41, 1–31.Google Scholar
Engel, Z., Nývlt, D. & Láska, K. 2012. Ice thickness, areal and volumetric changes of Davies Dome and Whisky Glacier (James Ross Island, Antarctic Peninsula) in 1979–2006. Journal of Glaciology, 58, 904–914.Google Scholar
Fleming, W.L.S. 1940. Relic glacial forms on the western seaboard of Graham Land. The Geographical Journal, 96, 93–100.Google Scholar
Fleming, W.L.S., Stephenson, A., Roberts, B.B. & Bertram, G.C.L. 1938. Notes on the scientific work of the British Graham Land Expedition, 1934–37. The Geographical Journal, 91, 508–532.Google Scholar
Fretwell, P., Pritchard, H.D., Vaughan, D.G., Bamber, J.L., Barrand, N.E., Bell, R., et al. 2013. Bedmap2: improved ice bed, surface and thickness datasets for Antarctica. The Cryosphere, 7, 375–393.Google Scholar
Hlotov, V., Kovalenok, S., Milinevskyy, G., Nakalov, E. & Fulitka, J. 2003. Monitoring of small glaciers as indicators of changes of climate in region of the Antarctic Peninsula. Ukrainian Antarctic Journal, 1, 93–99.Google Scholar
Ingólfsson, Ó., Hjort, C., Berkman, P.A., Björck, S., Colhoun, E., Goodwin, I.D., et al. 1998. Antarctic glacial history since the Last Glacial Maximum: an overview of the record on land. Antarctic Science, 10, 326–344.Google Scholar
Lamsters, K., Karušs, J., Rečs, A. & Bērziņš, D. 2016. Detailed subglacial topography and drumlins at the marginal zone of Múlajökull outlet glacier, central Iceland: evidence from low frequency GPR data, Polar Science, 10, 470–475.Google Scholar
Leat, P.T., Scarrow, J.H. & Millar, I.L. 1995. On the Antarctic Peninsula batholith. Geological Magazine, 132–134, 399–412.Google Scholar
Levashov, S.P., Yakymchuk, N.A., Usenko, V.P., Korchagin, I.N., Solovyov, V.D. & Pishchany, Y.M. 2004. Determination of the Galindez Island ice cap thickness by the vertical electrical resonance sounding method. Ukrainian Antarctic Journal, 2, 38–43.Google Scholar
Ó Cofaigh, C., Davies, B.J., Livingstone, S.J., Smith, J.A., Johnson, J.S., Hocking, E.P., et al. 2014. Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum. Quaternary Science Reviews, 100, 87–110.Google Scholar
Pellikka, P. & Rees, W.G. 2010. Remote sensing of glaciers: techniques for topographic, spatial and thematic mapping of glaciers. Boca Raton, FL: CRC Press, 340 pp.Google Scholar
Rau, F., Mauz, F., De Angelis, H., Jaňa., R., Neto, J.A., Skvarca, P., et al. 2004. Variations of glacier frontal positions on the northern Antarctic Peninsula. Annals of Glaciology, 39, 525–530.Google Scholar
Rundle, A.S. 1973. Glaciology of the Marr Ice Piedmont, Anvers Island, Antarctica. Institute of Polar Studies Report No. 47. Columbus, OH: Research Foundation and the Institute of Polar Studies, The Ohio State University, 237 pp.Google Scholar
Rymill, J.R. 1938. British Graham Land expedition, 1934–37. The Geographical Journal, 91, 297–312.Google Scholar
Sadler, I. 1968. Observations on the ice caps of Galindez and Skua islands, Argentina Islands, 1960–66. BAS Bulletin, No. 17, 21–49.Google Scholar
Smith, A.M., Vaughan, D.G., Doake, C.S.M. & Johnson, A.C. 1998. Surface lowering of the ice ramp at Rother a Point, Antarctic Peninsula, in response to regional climate change. Annals of Glaciology, 27, 113–118.Google Scholar
Smith, B.M.E. 1972. Airborne radio echo sounding of glaciers in the Antarctic Peninsula. BAS Scientific Reports, 72, 1–11.Google Scholar
Steig, E.J., Schneider, D.P., Rutherford, S.D., Mann, M.E., Comiso, J.C. & Shindell, D.T. 2009. Warming of the Antarctic ice-sheet surface since the 1957 International Geophysical Year. Nature, 457, 459–462.Google Scholar
Thomas, R.H. 1963. Studies on the ice cap of Galindez Island, Argentina Islands. BAS Bulletin, No. 2, 27–43.Google Scholar
Tretyak, K., Hlotov, V., Holubinka, Y. & Marusazh, K. 2016. Complex geodetic research in Ukrainian Antarctic station ‘Academician Vernadsky’ (years 2002–2005, 2013–2014). Reports on Geodesy and Geoinformatics, 100, 149–163.Google Scholar
Turner, J., Chenoli, S.N., Marshall, G., Phillips, T. & Orr, A. 2009. Strong wind events in the Antarctic. Journal of Geophysical Research: Atmospheres, 114(D18), 10.1029/2008JD011642.Google Scholar
Turner, J., Colwell, S.R., Marshall, G.J., Lachlan-Cope, T.A., Carelton, A.M., Jones, P.D., et al. 2005. Antarctic climate change during the last 50 years. International Journal of Climatology, 25, 279–294.Google Scholar
Turner, J., Lu, H., White, L., King, J.C., Phillips, T., Hosking, J.S., et al. 2016. Absence of 21st century warming on Antarctic Peninsula consistent with natural variability. Nature, 535, 411–415.Google Scholar
Tymofeyev, V.E. 2014. Some peculiarities of the near-surface air temperature change in the Antarctic Peninsula region. Ukrainian Antarctic Journal, 13, 110–123.Google Scholar
Tymofeyev, V.E., Beznoshchehenko, B.O. & Shcheglov, O.A. 2017. On the near-surface atmospheric circulation in the region of the Antarctic Peninsula. Ukrainian Antarctic Journal, 15, 66–80.Google Scholar
Vaughan, D.G., Marshall, G.J., Connolley, W.M., Parkinson, C., Mulvaney, R., Hodgson, D.A., et al. 2003. Recent rapid regional climate warming on the Antarctic Peninsula. Climatic Change, 60, 243–274.Google Scholar