| KAVAN, Jan, Daniel NÝVLT, Kamil LÁSKA, Zbyněk ENGEL a Michaela KŇAŽKOVÁ. High Latitude Dust Deposition in Snow on the Glaciers of James Ross Island, Antarctica. Earth Surface Processes and Landforms. Hoboken: Wiley, 2020, roč. 45, č. 7, s. 1569-1578. ISSN 0197-9337. Dostupné z: https://dx.doi.org/10.1002/esp.4831. |
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@article{1625676,
author = {Kavan, Jan and Nývlt, Daniel and Láska, Kamil and Engel, Zbyněk and Kňažková, Michaela},
article_location = {Hoboken},
article_number = {7},
doi = {http://dx.doi.org/10.1002/esp.4831},
keywords = {glaciers; high-latitude dust deposition; snow pit; James Ross Island; Antarctic Peninsula; long-range transport},
language = {eng},
issn = {0197-9337},
journal = {Earth Surface Processes and Landforms},
title = {High Latitude Dust Deposition in Snow on the Glaciers of James Ross Island, Antarctica},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/esp.4831},
volume = {45},
year = {2020}
}
TY - JOUR
ID - 1625676
AU - Kavan, Jan - Nývlt, Daniel - Láska, Kamil - Engel, Zbyněk - Kňažková, Michaela
PY - 2020
TI - High Latitude Dust Deposition in Snow on the Glaciers of James Ross Island, Antarctica
JF - Earth Surface Processes and Landforms
VL - 45
IS - 7
SP - 1569-1578
EP - 1569-1578
PB - Wiley
SN - 01979337
KW - glaciers
KW - high-latitude dust deposition
KW - snow pit
KW - James Ross Island
KW - Antarctic Peninsula
KW - long-range transport
UR - https://onlinelibrary.wiley.com/doi/abs/10.1002/esp.4831
L2 - https://onlinelibrary.wiley.com/doi/abs/10.1002/esp.4831
N2 - High-latitude dust (HLD) depositions on four glaciers of James Ross Island (the Ulu Peninsula) were analysed. The deposition rate on the selected glaciers varies from 11.8 to 64.0 g m(-2), which is one order of magnitude higher compared to the glaciers in Antarctica or elsewhere in the world. A strong negative relationship between the sediment amount and altitude of a sampling site was found. This is most likely caused by the higher availability of aeolian material in the atmospheric boundary layer. General southerly and south-westerly wind directions over the Ulu Peninsula - with exceptions based on local terrain configuration - help to explain the significantly lower level of sediment deposition on San Jose Glacier and the high level on Triangular Glacier. X-ray fluorescence (XRF) spectrophotometry was used to estimate the relative proportions of the main and trace (lithophile) elements in the sediment samples. Both the sediment amount and the XRF results are analysed in a depth profile at each locality and compared among the glaciers, suggesting long-range transport of fine mineral material from outside James Ross Island. The distribution of aeolian sediment among the glaciers corresponds well with the prevailing wind direction on the Ulu Peninsula.
ER -
KAVAN, Jan, Daniel NÝVLT, Kamil LÁSKA, Zbyněk ENGEL a Michaela KŇAŽKOVÁ. High Latitude Dust Deposition in Snow on the Glaciers of James Ross Island, Antarctica. \textit{Earth Surface Processes and Landforms}. Hoboken: Wiley, 2020, roč.~45, č.~7, s.~1569-1578. ISSN~0197-9337. Dostupné z: https://dx.doi.org/10.1002/esp.4831.
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