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@article{1548696,
author = {Roman, Matěj and Nedbalová, Linda and Kohler, Tyler J and Lirio, Juan M and Coria, Silvia H and Kopáček, Jiří and Vignoni, Paula and Kopalová, Kateřina and Lecomte, Karina L and Elster, Josef and Nývlt, Daniel},
article_location = {NEW YORK},
article_number = {4},
doi = {http://dx.doi.org/10.1017/S0954102019000178},
keywords = {deglaciation; hydrology; lake origin; lake typology; landscape evolution; water chemistry},
language = {eng},
issn = {0954-1020},
journal = {Antarctic Science},
title = {Lacustrine systems of Clearwater Mesa (James Ross Island, northeastern Antarctic Peninsula): geomorphological setting and limnological characterization},
url = {https://www.cambridge.org/core/journals/antarctic-science/article/lacustrine-systems-of-clearwater-mesa-james-ross-island-northeastern-antarctic-peninsula-geomorphological-setting-and-limnological-characterization/91EEB3EBD354FD8F7D1B2AA3C0B89A84},
volume = {31},
year = {2019}
}
TY - JOUR
ID - 1548696
AU - Roman, Matěj - Nedbalová, Linda - Kohler, Tyler J - Lirio, Juan M - Coria, Silvia H - Kopáček, Jiří - Vignoni, Paula - Kopalová, Kateřina - Lecomte, Karina L - Elster, Josef - Nývlt, Daniel
PY - 2019
TI - Lacustrine systems of Clearwater Mesa (James Ross Island, northeastern Antarctic Peninsula): geomorphological setting and limnological characterization
JF - Antarctic Science
VL - 31
IS - 4
SP - 169-188
EP - 169-188
PB - CAMBRIDGE UNIV PRESS
SN - 09541020
KW - deglaciation
KW - hydrology
KW - lake origin
KW - lake typology
KW - landscape evolution
KW - water chemistry
UR - https://www.cambridge.org/core/journals/antarctic-science/article/lacustrine-systems-of-clearwater-mesa-james-ross-island-northeastern-antarctic-peninsula-geomorphological-setting-and-limnological-characterization/91EEB3EBD354FD8F7D1B2AA3C0B89A84
L2 - https://www.cambridge.org/core/journals/antarctic-science/article/lacustrine-systems-of-clearwater-mesa-james-ross-island-northeastern-antarctic-peninsula-geomorphological-setting-and-limnological-characterization/91EEB3EBD354FD8F7D1B2AA3C0B89A84
N2 - Lentic freshwater habitats are important centres of biodiversity within the infrequent ice-free oases across Antarctica. Given imminent climate changes, it is crucial to catalogue these habitats in order to provide baseline data for future monitoring and biological surveys. The lacustrine systems of Clearwater Mesa, a previously unexplored part of James Ross Island, north-eastern Antarctic Peninsula, are described here. We conducted basic geomorphological and limnological surveys over three Antarctic summers 2009–16 to characterize landscape evolution, infer the origin of lake basins and assess the variability in their water chemistry. Stable shallow lakes, formed in depressions between lava tumuli following the last deglaciation, were found to dominate the volcanic mesa, although several peripheral lakes in ice-proximal settings appear to have formed recently as a result of post-Neoglacial ice recession. We found large heterogeneity in conductivity from 10 to 7000 microS cm-1, despite the lithologically uniform substrate. This variability was shown to be related to lake type, basin type open vs closed, meltwater source and proximity to the coast. Inter-annual differences were attributed to changes in sea spray influx and snow accumulation driven by variable weather conditions. Overall, the ion composition of lakes suggested that sea spray was the dominant source of ions, followed by the weathering of bedrock.
ER -
ROMAN, Matěj, Linda NEDBALOVÁ, Tyler J KOHLER, Juan M LIRIO, Silvia H CORIA, Jiří KOPÁČEK, Paula VIGNONI, Kateřina KOPALOVÁ, Karina L LECOMTE, Josef ELSTER a Daniel NÝVLT. Lacustrine systems of Clearwater Mesa (James Ross Island, northeastern Antarctic Peninsula): geomorphological setting and limnological characterization. \textit{Antarctic Science}. NEW YORK: CAMBRIDGE UNIV PRESS, 2019, roč.~31, č.~4, s.~169-188. ISSN~0954-1020. Dostupné z: https://dx.doi.org/10.1017/S0954102019000178.
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