Regularities of the Distribution of Lake Areas on Thermokarst Plains with Fluvial Erosion

Victorov, A. S.; Orlov, T. V.; Trapeznikova, O. N.; Kapralova, V. N.; Arkhipova, M. V.

doi:10.1134/s1028334x20040194

Cited by 6 publications

(2 citation statements)

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“…Our previous analysis [39,40] showed that the empirical data are most consistent with the morphological pattern model for the thermokarst plains with fluvial erosion, corresponding to the asynchronous start. This can be explained by the ongoing formation of new thermokarst lakes within the emerging khasyreis.…”

supporting

confidence: 59%

Research into Cryolithozone Spatial Pattern Changes Based on the Mathematical Morphology of Landscapes

et al. 2022

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Lacustrine thermokarst is receiving great interest as a landscape-forming process. Despite this, research dealing with the quantitative analysis of the changes in the morphological patterns of thermokarst plains under ongoing climate change is lacking. This study aims to analyze changes in the morphological patterns of cryolithozone landscapes based on models provided by the mathematical morphology of landscapes. Our research involves eight key sites within lacustrine thermokarst plains and nine key sites within thermokarst plains with fluvial erosion. These sites differ in geomorphological, geocryological, and physiographical terms, and are situated in different regions such as Yamal, Taimyr, Kolyma lowland, river Lena delta, Baffin’s Land, and Alaska. Archival Corona images (date 1) and high-resolution satellite imagery from June to August 2008–2014 (date 2) were used to obtain the model’s morphometric data. According to quantitative analysis of the models, the morphological pattern of the lacustrine thermokarst plains did not undergo significant changes during the observation period, while 20% of the key sites within the thermokarst plains with fluvial erosion underwent essential changes in lake area distributions. This difference may come from the higher reactivity of the fluvial erosion process on climate change than that of the thermokarst.

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confidence: 59%

Research into Cryolithozone Spatial Pattern Changes Based on the Mathematical Morphology of Landscapes

et al. 2022

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“…The near-surface air temperatures in the northern territories are increasing faster than in the middle and tropic latitudes. Correspondingly, the warming causes prominent effects on permafrost, which appear as (i) permafrost thawing, especially near rivers and lakes; (ii) coastline erosion; (iii) inputs of highly saline waters from cryopegs into the water turnover; (iv) changes in the contours of surface watersheds and aquifers; (v) disturbed water-level phases [4,6,9,11,12,[14][15][16][17][18][19][20][21]. The environment changes, probably, will entrain changes in the water and solid flow regimes [22], recharge patterns, and water-rock interaction, and thus affect the chemistry and quality of surface waters.…”

Section: Introductionmentioning

confidence: 99%

Major-Ion Chemistry and Quality of Water in Rivers of Northern West Siberia

Иванова

Савичев

Trifonov

et al. 2021

Water

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This study reports a synthesis of years-long hydrogeochemical monitoring in northern West Siberia, performed by the Russian Meteorological Service (Rosgidromet) and several academic institutions. Natural factors and intensive human economic activity lead to the disruption of the ecosystems of the northern territories of Western Siberia. The aim of this study is to estimate the background water chemistry parameters in the rivers of northern West Siberia in the beginning of the 21st century. The mean values hydrochemical and geochemical indicators were determined with STATISTICA software, which can be used as background values in assessing the actual and allowable anthropogenic impact on water bodies. We revealed four water chemistry provinces: western Ob Gulf and Ob estuary catchments (I); eastern Ob Gulf and Taz Gulf catchments, except for the Taz River and its tributaries (II); Taz River catchments (III); Yenisei River catchments, right bank (IV). The major-ion chemistry of the sampled river waters records a combination of geological, geomorphological, and hydrological conditions in the four provinces. The features typical of the northern West Siberian Plain are especially prominent in province II, which has the lowest average total of major ions (Σmi), the highest chemical oxygen demand (potassium dichromate COD), and the highest contents of Fe and phosphates. The Σmi value is the highest in province IV. The river waters from four provinces share similarity in quite high organic contents (both potassium dichromate and permanganate COD), as well as high NH4+ and Fe. The long-term average Σmi of the waters is predicted not to change much in the coming one or two decades, though it may decrease slightly in the winter season but increase in the fall and spring time.

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Mathematical Modeling: Does Landscape Science Need to Become an Exact Science?

Linnik

2022

Curr Landscape Ecol Rep

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Regularities of the Distribution of Lake Areas on Thermokarst Plains with Fluvial Erosion

Cited by 6 publications

References 1 publication

Research into Cryolithozone Spatial Pattern Changes Based on the Mathematical Morphology of Landscapes

Research into Cryolithozone Spatial Pattern Changes Based on the Mathematical Morphology of Landscapes

Major-Ion Chemistry and Quality of Water in Rivers of Northern West Siberia

Mathematical Modeling: Does Landscape Science Need to Become an Exact Science?

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