Hydrological and Hydrochemical Characteristics of Lakes in the Lena River Delta (Northeast-Siberia, Russia)

Chetverova, Antonina; Skorospekhova, Tatyana; Morgenstern, Anne; Alekseeva, Natalia; Spiridonov, Igor G.; Fedorova, Irina

doi:10.2312/polarforschung.87.2.111

Cited by 4 publications

(5 citation statements)

References 1 publication

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“…The previous hydrochemical study in the Lena Delta revealed differences in the content of the main ions and some trace elements in the water of lakes that are characterized by different origin, flooding regimes and geological basement of the catchment area [3]. However, our work did not reveal any similar difference in the content of the majority of metals analyzed in the lake sediments.…”

Section: Discussioncontrasting

confidence: 72%

“…Sampling procedure Samples were taken from 10 small lakes (their areas do not exceed 0.05 km 2 ) in August 2019 (Table 1). The hydrochemical features of the lakes of the Lena Delta can be found in a work by Chetverova et al [3]. The surface sediment (0-10 cm) was collected using the Van Veen grab.…”

Section: Study Areamentioning

confidence: 99%

“…Note. 1 -According to [12,13]; 2 -According to [3]; 3 -% of dispersed organic matter in the sediments according to [9] Characteristics Lake 1 Lake 2 Molo Lake Fish Lake North Lake Shallow Lake Banya 2 Lake Banya 3 Lake Banya Lake Flood Lake Latitude (°) Longitude (°) metal ions. The exceptions are metals associated with insoluble residue (aluminosilicate compounds).…”

Section: характеристики изученных озер дельты р леныmentioning

confidence: 99%

“…There are numerous lakes within the territory. Their hydrological and hydrochemical features are predominantly affected by surface fluxes from the catchment areas, the groundwater of the active layer, and the flooding regime of the river Lena [1][2][3]. [16] Рис.…”

Section: Introductionmentioning

confidence: 99%

“…1. Территория исследования [16] Furthemore, the ongoing thermokarst processes can also influence them by releasing chemical elements from the permafrost deposits present under the lake bottom [3,4]. The lake sediments constitute the terminal accumulation matrix of chemical substances in the aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 99%

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Fractions of trace metals in the sediments of permafrost-affected lakes in Northern Siberia, Lena delta

Guzeva

Elizarova

Lapenkov

et al. 2022

Problemy Arktiki i Antarktiki

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Summary The aim of the study is to estimate the role of sediment components in the accumulation of microelements in lakes of the permafrost-affected area (the Lena Delta, northern Siberia). A fractional analysis of several trace elements (V, Cr, Co, Ni, Cu, Zn, Sn, and Pb) was conducted. Samples were collected from 10 lakes during the summer period of the “LENA 2019” expedition. The content of the chemical elements in the sediments was measured with the ICP-MS instrument. The results of the work show a relatively homogeneous distribution of the acid-soluble forms of the metals in sediments from different lakes. The content of trace elements in all the lakes studied is determined by natural (lithogenic) sources. Stable minerals inherited from the rocks play a crucial role in the sediment formation. Most of the elements are predominantly fixed in stable mineral and organometallic fractions. However, for V, Co, and Cr a high level of geochemical mobility was identified in some of the lakes. The metals of soluble complexes are capable of migrating from the sediments to the water due to physical and chemical changes in the aquatic environment. Furthermore, the organic substances and the Fe/Mn hydroxides of the sediments have a low potential ability to bind the metals into stable compounds.

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Section: Discussioncontrasting

confidence: 72%

Section: Study Areamentioning

confidence: 99%

Section: характеристики изученных озер дельты р леныmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fractions of trace metals in the sediments of permafrost-affected lakes in Northern Siberia, Lena delta

Guzeva

Elizarova

Lapenkov

et al. 2022

Problemy Arktiki i Antarktiki

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Passive Seismology: Lightweight and Rapid Detection of Arctic Subsea and Sub‐Aquatic Permafrost

Angelopoulos,

Ryberg,

Rasmussen

et al. 2024

JGR Earth Surface

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Low sea levels during the last Ice Age exposed millions of square kilometers of Arctic shelves which have been subsequently submerged, creating subsea permafrost. In onshore settings, permafrost can also exist beneath water bodies such as coastal lagoons, rivers, and thermokarst lakes. We explored passive seismology as a method for mapping unfrozen sediment thickness above subsea and sub‐aquatic permafrost. We present passive seismic data collected with the Mobile Ocean Bottom Seismic Instrument (MOBSI) from the Beaufort Sea near Tuktoyaktuk in Canada, Ivashkina Lagoon on the Bykovsky Peninsula, as well as a lake and river in the Lena Delta, Siberia, Russia. We use borehole data and frost probe measurements to identify permafrost‐related H/V measurement peaks and calibrate shear wave velocities for frequency‐to‐depth conversion. We employ the shortest path and maximum signal amplitude to connect peaks and generate geological profiles. The MOBSI detected the ice‐bonded permafrost table beneath the Beaufort Sea, as well as beneath a Siberian lake and lagoon. At Tuktoyaktuk, an ocean bottom seismometer revealed a 5% scatter about the peak frequency for three‐minute time windows and over 8 hr of recording time. With peak frequencies ranging from 4.9 ± 0.2 Hz to 27.6 ± 1.4 Hz, the depth to subsea permafrost ranged from 1.4 ± 0.1 m bsl at the shoreline to 14.0 ± 0.4 m bsl 240 m offshore. Given an accurate shear wave velocity, our findings highlight that MOBSI deployment times as short as 3 min are adequate for detecting Arctic subsea and sub‐aquatic permafrost.

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Drivers of winter ice formation on Arctic water bodies in the Lena Delta, Siberia

Lütjen,

Overduin,

Juhls

et al. 2024

Arctic, Antarctic, and Alpine Research

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Hydrological and Hydrochemical Characteristics of Lakes in the Lena River Delta (Northeast-Siberia, Russia)

Cited by 4 publications

References 1 publication

Fractions of trace metals in the sediments of permafrost-affected lakes in Northern Siberia, Lena delta

Fractions of trace metals in the sediments of permafrost-affected lakes in Northern Siberia, Lena delta

Passive Seismology: Lightweight and Rapid Detection of Arctic Subsea and Sub‐Aquatic Permafrost

Drivers of winter ice formation on Arctic water bodies in the Lena Delta, Siberia

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