ENGEL, Zbyněk, Daniel NÝVLT and Kamil LÁSKA. Ice thickness, areal and volumetric changes of Davies Dome and Whisky Glacier (James Ross Island, Antarctic Peninsula) in 1979–2006. Journal of Glaciology. 2012, vol. 58, No 211, p. 904-914. ISSN 0022-1430. Available from: https://dx.doi.org/10.3189/2012JoG11J156.
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Basic information
Original name Ice thickness, areal and volumetric changes of Davies Dome and Whisky Glacier (James Ross Island, Antarctic Peninsula) in 1979–2006
Authors ENGEL, Zbyněk (203 Czech Republic, guarantor), Daniel NÝVLT (203 Czech Republic) and Kamil LÁSKA (203 Czech Republic, belonging to the institution).
Edition Journal of Glaciology, 2012, 0022-1430.
Other information
Original language English
Type of outcome Article in a journal
Field of Study Earth magnetism, geodesy, geography
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 2.882
RIV identification code RIV/00216224:14310/12:00058649
Organization unit Faculty of Science
Doi http://dx.doi.org/10.3189/2012JoG11J156
UT WoS 000309248400009
Keywords in English Antarctica; James Ross Island; Antarctic Peninsula; ice cap; ice thickness; valley glacier; ground-penetrating radar; glacier; elevation changes;
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 10/4/2013 18:29.
Abstract
This study calculates area, volume and elevation changes of two glaciers on James Ross Island, Antarctica, during the period 1979–2006. Davies Dome is a small ice cap. Whisky Glacier is a valley glacier. Ground-penetrating radar surveys indicate ice thickness, which was used for calculations of the bed topography and volume of both glaciers. Maximum measured ice thicknesses of Davies Dome and Whisky Glacier are 83 +/- 2 and 157 +/- 2 m, respectively. Between 1979 and 2006, the area of the ice cap decreased from 6.23 +/- 0.05 km2 to 4.94 +/- 0.01 km2 (–20.7%), while the area of the valley glacier reduced from 2.69 +/- 0.02 km 2 to 2.40 +/- 0.01 km2 (–10.6%). Over the same period the volume of the ice cap and valley glacier reduced from 0.23 +/- 0.03 km3 to 0.16 +/- 0.02 km3 (–30.4%) and from 0.27 +/- 0.02 km3 to 0.24 +/- 0.01 km3 (–10.6%), respectively. The mean surface elevation decreased by 8.5 +/- 2.8 and 10.1 +/- 2.8 m. The average areal (0.048–0.011 km2 a–1) and volumetric (0.003–0.001 km3 a–1) changes are higher than the majority of other estimates from Antarctic Peninsula glaciers.
Links
GA205/09/1876, research and development projectName: Recentní deglaciace severní části ostrova Jamese Rosse, Antarktida
Investor: Czech Science Foundation, Recent deglaciation of the northern part of James Ross Island, Antarctica
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