干旱区生态环境知识资源中心(Arid): Retention time of lakes in the Larsemann Hills oasis, East Antarctica

Arid

DOI	10.5194/tc-15-2667-2021
	Retention time of lakes in the Larsemann Hills oasis, East Antarctica
	Shevnina, Elena; Kourzeneva, Ekaterina; Dvornikov, Yury; Fedorova, Irina
通讯作者	Shevnina, E (corresponding author), Finnish Meteorol Inst, Helsinki, Finland.
来源期刊	CRYOSPHERE
ISSN	1994-0416
EISSN	1994-0424
出版年	2021
卷号	15 期号:6 页码:2667-2682
英文摘要	This study provides first estimates of the water transport timescale for five lakes located in the Larsemann Hills oasis (69 degrees 23' S, 76 degrees 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.
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000662226300003
WOS关键词	FRESH-WATER ; CLIMATE-CHANGE ; BALANCE ; SALINITY ; UNTERSEE ; FEATURES ; STATION ; SURFACE ; ENERGY ; MODEL
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349905
作者单位	[Shevnina, Elena; Kourzeneva, Ekaterina] Finnish Meteorol Inst, Helsinki, Finland; [Dvornikov, Yury] RUDN Univ, Agr & Technol Inst, Dept Landscape Design & Sustainable Ecosyst, Moscow, Russia; [Fedorova, Irina] St Petersburg State Univ, Dept Geoecol & Environm Management, St Petersburg, Russia
推荐引用方式 GB/T 7714	Shevnina, Elena,Kourzeneva, Ekaterina,Dvornikov, Yury,et al. Retention time of lakes in the Larsemann Hills oasis, East Antarctica[J],2021,15(6):2667-2682.
APA	Shevnina, Elena,Kourzeneva, Ekaterina,Dvornikov, Yury,&Fedorova, Irina.(2021).Retention time of lakes in the Larsemann Hills oasis, East Antarctica.CRYOSPHERE,15(6),2667-2682.
MLA	Shevnina, Elena,et al."Retention time of lakes in the Larsemann Hills oasis, East Antarctica".CRYOSPHERE 15.6(2021):2667-2682.