Geophysical surveys in the vicinity of the Progress station, East Antarctica, performed during the 63rd RAE season (2017/18)

A. A. Sukhanova; S. V. Popov; A. S. Boronina; S. D. Grigorieva; M. P. Kashkevich

doi:10.31857/S2076673420010030

Geophysical surveys in the vicinity of the Progress station, East Antarctica, performed during the 63rd RAE season (2017/18)

A. A. Sukhanova, S. V. Popov, A. S. Boronina, S. D. Grigorieva, M. P. Kashkevich

https://doi.org/10.31857/S2076673420010030

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Abstract

In recent years, when organizing works of the Russian Antarctic Expedition (RAE), considerable attention is given to the safety of logistics operations carried out at Russian stations and field bases. The main factors that threaten polar explorers are extensive systems of cracks and water breakthroughs, confined to the marginal, the most dynamic part of the outlet glaciers, in the area of which the most part of stations are located. One example of the impact of these processes on transport communications in Antarctica is the breakthrough of an intraglacial reservoir in the Dolk glacier near the station Progress (Larsemann Hills, Eastern Antarctica) in the season of the 62nd RAE (2016/17). The outburst resulted in the formation of a huge hole in the glacier body and an extensive system of cracks directed towards its flanks. This took place on the part of the route connecting the Progress Station with the point of organization the sledge-tractor train marches to inner regions of the Antarctic continent. Thus, this destroyed the transport links between these points. That is why during the seasonal works of the 63rd RAE (2017/18) geophysical surveys were carried out around the hole by means of the GPR profiling for the purpose to find the best way and organize a new all-season route. The GPR soundings performed at frequencies of 900 and 150 MHz, made possible to fix numerous cracks and large volumes of melt water accumulations in the near-surface part of the ice layer. The analysis of the obtained time sections and the assessment of the depths of cracks and watered areas did show that the detected objects in the glacier body were not dangerous for advancing of the sledge-caterpillar equipment passing by the hole. These surveys allowed planning the optimal new route, after which it was rolled up and put into operation. The logistical connection between the station and the airfield has been restored. Until the end of the field season, the new all-season route was actively used for transportation.

Keywords

East Antarctica, GPR profiling, ice crevasses, outburst flood, Progress Station, transport operations,

About the Authors

A. A. Sukhanova

Saint-Petersburg State University
Russian Federation
St. Petersburg

S. V. Popov

Polar Marine Geosurvey Expedition; Saint-Petersburg State University
Russian Federation
St. Petersburg

A. S. Boronina

Saint-Petersburg State University
Russian Federation
St. Petersburg

S. D. Grigorieva

Saint-Petersburg State University
Russian Federation
St. Petersburg

M. P. Kashkevich

Saint-Petersburg State University
Russian Federation
St. Petersburg

References

1. Popov S.V., Polyakov S.P. Ground-penetrating radar sounding of the ice crevasses in the area of the Russian Stations Progress and Mirny (East Antarctica) during the field season of 2014/15. Kriosfera Zemli. Earth’s Cryosphere. 2016, XX (1): 90–98. [In Russian].

2. Vaigachev A.Z. Breakthrough of ice dump of Lagernoye lake. Informatsionnyi byulleten Sovetskoy Antarkticheskoy ekspeditsii. Information bulletin of the Soviet Antarctic expedition. 1965, 54: 58. [In Russian].

3. Popov S.V., Boronina A.S., Pryakhina G.V., Grigoreva S.D., Sukhanova A.A., Tyurin S.V. Breakthroughs of glacial and subglacial lakes at the Larsemann Hills (East Antarctica) in 2017–2018. Georisk. Georisk. 2018, XII (3): 56–67. [In Russian].

4. Popov S.V., Pryakhin S.S., Bliakharskii D.P., Pryakhina G.V., Tyurin S.V. Vast ice depression in Dålk Glacier, East Antarctica. Led i Sneg. Ice and Snow. 2017, 57 (3): 427–432. doi: 10.15356/2076-6734-2017-3427-432

5. Antarctic Digital Database (ADD), Version 7.0, January 2016. Scientific Committee on Antarctic Research, British Antarctic Survey, Cambridge.

6. Popov S.V., Kiselev A.V. Russian airborne geophysical investigations of Mac. Robertson, Princess Elizabeth and Wilhelm II Lands, East Antarctica. Kriosfera Zemli. Earth’s Cryosphere. 2018, XXII (1): 3–13. doi: 10.21782/EC2541-9994-2018-1(3-13). [In Russian].

7. Voitkovskiy K.F. Osnovy glyatsiologii. Fundamentals of glaciology. Moscow: Nauka, 1999: 255 p. [In Russian].

8. Cumming W.A. The dielectric properties of ice and snow at 3.2 centimeters. Journ. of Applied Physics. 1952, 23 (7): 768–773. doi: 10.1063/1.1702299.

9. Robin G.D.Q. Velocity of radio waves in ice by means of a bore-hole interferometric technique. Journ. of Glaciology. 1975, 15 (73): 151–159.

10. Kovacs A., Gow A.J., Morey R.M. The in-situ dielectric constant of polar firn revisited. Cold Regions Science and Technology. 1995, 23: 245–256.

11. Tiuri M., Sihvola A., Nyfors E., Hallikaiken M. The complex dielectric constant of snow at microwave frequencies. IEEE Journ of Oceanic Engineering. 1984, 9 (5): 377–382. doi: 10.1109/JOE.1984.1145645.

12. Kotlyakov V.M., Macheret Y.Y., Sosnovsky A.V., Glazovsky A.F. Speed of radio wave propagation in dry and wet snow. Led i Sneg. Ice and Snow. 2017, 57 (1): 4556. doi: 10.15356/2076-6734-2017-1-45-56. [In Russian].

13. Winther J.G., Bruland O., Sand K., Killingtveit A., Marechal D. Snow accumulation distribution on Spitsbergen, Svalbard, in 1997. Polar Research. 1998, 17 (2): 155–164. doi: 10.1111/j.1751-8369.1998.tb00269.x.

14. Lavrentiev I.I., Kutuzov S.S., Glazovsky A.F., Macheret Y.Y., Osokin N.I., Sosnovsky A.V, Chernov R.A., Cherniakov G.A. Snow thickness on Austre Grønfjordbreen, Svalbard, from radar measurements and standard snow surveys. Led i Sneg. Ice and Snow. 2018, 58 (1): 5–20. doi: 10.15356/2076-6734-2018-1-5-20. [In Russian].

15. Macheret Y.Y. Radiozondirovanie lednikov. Radio echosounding of glaciers. Moscow: Nauchny Mir, 2006: 392 p. [In Russian].

16. Popov S.V. Determination of dielectric permittivity from diffraction traveltime curves within a dippinglayer model. Kriosfera Zemli. Earth’s Cryosphere. 2017, XXI (3): 75–79. doi: 10.21782/EC2541-9994-20173(75-79).

17. Vladov M.L., Starovoytov A.V. Vvedenie v georadiolokatsiyu. Introduction to GPR. Moscow: MSU, 2004: 153 p. [In Russian].

18. Glazovsky A.F., Macheret Y.Y. Voda v lednikah. Metody i rezultaty geofizicheskikh i distantsionnykh issledovaniy. Water in glaciers. Methods and results of geophysical and remote sensing studies. Moscow: GEOS, 2014: 528 p. [In Russian].

Supplementary files

For citation: Sukhanova A.A., Popov S.V., Boronina A.S., Grigorieva S.D., Kashkevich M.P. Geophysical surveys in the vicinity of the Progress station, East Antarctica, performed during the 63rd RAE season (2017/18). Ice and Snow. 2020;60(1):149-160. https://doi.org/10.31857/S2076673420010030

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