Podrobnosti záznamu

Název
    Ice thickness, areal and volumetric changes of Davies Dome and Whisky Glacier (James Ross Island, Antarctic Peninsula) in 1979-2006
Autor
    Engel, Zbyněk
    Láska, Kamil
    Nývlt, Daniel
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Glaciology
Svazek/č.
    Roč. 58, č. 211
Strany
    11
Rok
    2012
Výraz tezauru
    glacier changes, ice thickness, ground penetrating radar, James Ross Island, Antarctic Peninsula
Klíčové slovo
    1979-2006
    Antarctic
    Areal
    Changes
    Davies
    Dome
    Glacier
    Ice
    Island
    James
    Peninsula
    Ross
    Thickness
    Volumetric
    Whisky
Abstrakt (anglicky)
   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?2m, respectively. Between 1979 and 2006, the area of the ice cap decreased from 6.23?0.05km2 to 4.94?0.01km2 (-20.7%), while the area of the valley glacier reduced from 2.69?0.02km2 to 2.40?0.01km2 (-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?0.02km3 to 0.24?0.01km3 (-10.6%), respectively. The mean surface elevation decreased by 8.5?2.8 and 10.1?2.8 m. The average areal (~0.048-0.011km2 a-1) and volumetric (~0.003-0.001km3 a-1) changes are higher than the majority of ot
   her estimates from Antarctic Peninsula glaciers.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014