Retention time of lakes in the Larsemann Hills oasis, East Antarctica
This study provides first estimates of the water transport timescale for five lakes located in the Larsemann Hills oasis (69∘23′ S, 76∘20′ E) in East Antarctica. We estimated lake retention time (LRT) as a ratio of lake volume to the inflow and outflow terms of a lake water balance equation. The LRT...
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Copernicus Publications
2021
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fttriple:oai:gotriple.eu:oai:doaj.org/article:6037ca08a5ea4d3c87baea93b65121fb 2023-05-15T14:03:53+02:00 Retention time of lakes in the Larsemann Hills oasis, East Antarctica E. Shevnina E. Kourzeneva Y. Dvornikov I. Fedorova 2021-06-01 https://doi.org/10.5194/tc-15-2667-2021 https://tc.copernicus.org/articles/15/2667/2021/tc-15-2667-2021.pdf https://doaj.org/article/6037ca08a5ea4d3c87baea93b65121fb en eng Copernicus Publications doi:10.5194/tc-15-2667-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/2667/2021/tc-15-2667-2021.pdf https://doaj.org/article/6037ca08a5ea4d3c87baea93b65121fb undefined The Cryosphere, Vol 15, Pp 2667-2682 (2021) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5194/tc-15-2667-2021 2023-01-22T17:53:09Z This study provides first estimates of the water transport timescale for five lakes located in the Larsemann Hills oasis (69∘23′ S, 76∘20′ E) in East Antarctica. We estimated lake retention time (LRT) as a ratio of lake volume to the inflow and outflow terms of a lake water balance equation. The LRT was evaluated for lakes of epiglacial and landlocked types, and it was assumed that these lakes are monomictic, with water exchange occurring during the warm season only. We used hydrological observations collected in four seasonal field campaigns to evaluate the LRT. For the epiglacial lakes Progress and Nella/Scandrett, the LRT was estimated at 12–13 and 4–5 years, respectively. For the landlocked lakes Stepped, Sarah Tarn and Reid, our results show a great difference in the LRT calculated from the outflow and inflow terms of the water balance equation. The LRTs for these lakes vary depending on the methods and errors inherent to them. We relied on the estimations from the outflow terms, since they are based on hydrological measurements with better quality. Lake Stepped exchanged water within 1.5 years. Sarah Tarn and Lake Reid are endorheic ponds, with water loss mainly through evaporation. Their LRTs were estimated as 21–22 and 8–9 years, respectively. To improve the LRT estimates, special hydrological observations are needed to monitor the lakes and streams during the warm season with a uniform observational programme. Article in Journal/Newspaper Antarc* Antarctica East Antarctica The Cryosphere Unknown East Antarctica Lake Reid ENVELOPE(76.379,76.379,-69.386,-69.386) Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Scandrett ENVELOPE(76.371,76.371,-69.393,-69.393) The Cryosphere 15 6 2667 2682 |
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English |
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geo envir E. Shevnina E. Kourzeneva Y. Dvornikov I. Fedorova Retention time of lakes in the Larsemann Hills oasis, East Antarctica |
topic_facet |
geo envir |
description |
This study provides first estimates of the water transport timescale for five lakes located in the Larsemann Hills oasis (69∘23′ S, 76∘20′ E) in East Antarctica. We estimated lake retention time (LRT) as a ratio of lake volume to the inflow and outflow terms of a lake water balance equation. The LRT was evaluated for lakes of epiglacial and landlocked types, and it was assumed that these lakes are monomictic, with water exchange occurring during the warm season only. We used hydrological observations collected in four seasonal field campaigns to evaluate the LRT. For the epiglacial lakes Progress and Nella/Scandrett, the LRT was estimated at 12–13 and 4–5 years, respectively. For the landlocked lakes Stepped, Sarah Tarn and Reid, our results show a great difference in the LRT calculated from the outflow and inflow terms of the water balance equation. The LRTs for these lakes vary depending on the methods and errors inherent to them. We relied on the estimations from the outflow terms, since they are based on hydrological measurements with better quality. Lake Stepped exchanged water within 1.5 years. Sarah Tarn and Lake Reid are endorheic ponds, with water loss mainly through evaporation. Their LRTs were estimated as 21–22 and 8–9 years, respectively. To improve the LRT estimates, special hydrological observations are needed to monitor the lakes and streams during the warm season with a uniform observational programme. |
format |
Article in Journal/Newspaper |
author |
E. Shevnina E. Kourzeneva Y. Dvornikov I. Fedorova |
author_facet |
E. Shevnina E. Kourzeneva Y. Dvornikov I. Fedorova |
author_sort |
E. Shevnina |
title |
Retention time of lakes in the Larsemann Hills oasis, East Antarctica |
title_short |
Retention time of lakes in the Larsemann Hills oasis, East Antarctica |
title_full |
Retention time of lakes in the Larsemann Hills oasis, East Antarctica |
title_fullStr |
Retention time of lakes in the Larsemann Hills oasis, East Antarctica |
title_full_unstemmed |
Retention time of lakes in the Larsemann Hills oasis, East Antarctica |
title_sort |
retention time of lakes in the larsemann hills oasis, east antarctica |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-2667-2021 https://tc.copernicus.org/articles/15/2667/2021/tc-15-2667-2021.pdf https://doaj.org/article/6037ca08a5ea4d3c87baea93b65121fb |
long_lat |
ENVELOPE(76.379,76.379,-69.386,-69.386) ENVELOPE(76.217,76.217,-69.400,-69.400) ENVELOPE(76.371,76.371,-69.393,-69.393) |
geographic |
East Antarctica Lake Reid Larsemann Hills Scandrett |
geographic_facet |
East Antarctica Lake Reid Larsemann Hills Scandrett |
genre |
Antarc* Antarctica East Antarctica The Cryosphere |
genre_facet |
Antarc* Antarctica East Antarctica The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 2667-2682 (2021) |
op_relation |
doi:10.5194/tc-15-2667-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/2667/2021/tc-15-2667-2021.pdf https://doaj.org/article/6037ca08a5ea4d3c87baea93b65121fb |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-15-2667-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
6 |
container_start_page |
2667 |
op_container_end_page |
2682 |
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