干旱区生态环境知识资源中心(Arid): Hydrological characteristics of lakes in the eastern part of the Broknes Peninsula, Larsemann Hills, East Antarctica

Arid

DOI	10.15356/2076-6734-2019-1-39-48
	Hydrological characteristics of lakes in the eastern part of the Broknes Peninsula, Larsemann Hills, East Antarctica
	Boronina, A. S.; Popov, S., V; Pryakhina, G., V
通讯作者	Boronina, AS
来源期刊	LED I SNEG-ICE AND SNOW
ISSN	2076-6734
EISSN	2412-3765
出版年	2019
卷号	59 期号:1 页码:39-48
英文摘要	Broknes Peninsula (the area of the Progress station, Larsemann Hills, Princess Elisabeth Land, East Antarctica) is characterized by the presence of well developed hydrographic network consisting of reservoirs located not only in the bedrock, but also inside the glacier thickness and on its surface. As a rule, most of them are dammed by natural snow-ice weirs, which are often destroyed during the Antarctic summer. As a result of this process, glacial water outburst may occur. In the course of the summer season of the 63-th Russian Antarctic Expedition (RAE) intensive hydrological field observations were carried out for identification and comprehensive investigation of potentially outburst prone reservoirs located in close proximity to Russian and foreign stations and field bases (area of the Progress station and the field base Law-Racovita). The works included: the organization of temporary pile and depth-stick water gauge stations, mapping positions of the shoreline of lakes (reservoirs), bathymetric surveys of them, as well as field hydro-chemical express analyses. Based on the results of the level measurement, it was found that most of the lakes of the oasis are characterized by a sharp drop in the height of the water surface level associated with the breakthroughs. In particular, the authors witnessed the breakthrough of the Discussion Lake, which occurred on January 22, 2018. This resulted in decrease of the water level by 0.95 m. Based on the data of the bathymetric surveys, the morphometric (hydrometric) characteristics of the lakes were calculated and detailed grids (regular net of rectangular matrices, in the nodes of which some effective values of the mapped values are located) were formed for the following numerical modeling of hypothetical and real breakthroughs of water bodies and construction of estimated hydrographs.
英文关键词	breakthrough flood Broknes Peninsula East Antarctica hydrological study Larsemann Hills
类型	Article
语种	Russian
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000461805000003
WOS关键词	DYNAMICS ; GLACIER
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333453
作者单位	[Boronina, A. S.; Popov, S., V; Pryakhina, G., V] St Petersburg State Univ, St Petersburg, Russia; [Popov, S., V] Polar Marine Geosurvey Expedit, St Petersburg, Russia
推荐引用方式 GB/T 7714	Boronina, A. S.,Popov, S., V,Pryakhina, G., V. Hydrological characteristics of lakes in the eastern part of the Broknes Peninsula, Larsemann Hills, East Antarctica[J],2019,59(1):39-48.
APA	Boronina, A. S.,Popov, S., V,&Pryakhina, G., V.(2019).Hydrological characteristics of lakes in the eastern part of the Broknes Peninsula, Larsemann Hills, East Antarctica.LED I SNEG-ICE AND SNOW,59(1),39-48.
MLA	Boronina, A. S.,et al."Hydrological characteristics of lakes in the eastern part of the Broknes Peninsula, Larsemann Hills, East Antarctica".LED I SNEG-ICE AND SNOW 59.1(2019):39-48.