Anatolii Tsyplenkov

Manaaki Whenua - Landcare Research · Research Division of Soils and Landscapes

Due to specific environmental conditions, headwater catchments located on volcanic slopes and valleys are characterized by distinctive hydrology and sediment transport patterns. However, lack of sufficient monitoring causes that the governing processes and patterns in these areas are rarely well understood. In this study, spatiotemporal water disch...

PurposeThe sediment dynamics of (peri-)glacial catchments can be highly variable and complex. Understanding these dynamics and their underlying causes is not only of interest from a scientific perspective but also required to address the practical problems with which they are often associated. In order to better understand the sediment dynamics of...

Suspended sediment yields from glacierized catchments are often among the highest in the world, and their sediment dynamics can be highly variable. This study was undertaken in the 9.1 km² glacierized catchment of the Djankuat River located in the Russian part of the Northern Caucasus. The outlet of the study catchment is a hydrological gauging sta...

Quantifying and understanding catchment sediment fluxes is crucial both from a scientific and environmental management perspective. To deepen the understanding of land use impacts and climate change on sediment load, we explore factors controlling the suspended sediment load formation in the Northern Caucasus during the Anthropocene. We examine how...

This paper discusses the joint impact of catchment complexity in topography, tectonics, climate, land-use patterns, and lithology on the suspended sediment yield (SSY, t km −2 year −1) in the Caucasus region using measurements from 244 gauging stations (GS). A Partial Least Square Regression (PLSR) was used to reveal the relationships between SSY a...

The catchments of alpine rivers are one of the most sensitive regions to climate change. Deglaciation is one of the significant changes affecting erosion. Despite this, the parameters of sediment runoff in periglacial catchments are not fully understood, especially concerning sediment deposition and transport processes. For the North Caucasus regio...

Nature-based solutions (NbS) are actions to address societal problems. They are similar to soil and water bioengineering (SWB), where trees and forests are used to mitigate natural hazards. However, NbS can have unintended consequences. Forest-based NbS may involve the enhancement, rehabilitation or restoration of natural forests or planting of tr...

Despite the significant role that the Lower Don plays in Russia’s fishing industry, the region’s fisheries remain in a depressed state. It is well understood that the Tsimlyansk reservoir impacts the region’s fisheries, but the potential influence of climate change and associated reductions in snowmelt water flow remains under debate. The present s...

Сток наносов горных рек является важной характеристикой, отражающей интенсивность денудации в различных высотных поясах, а также ее изменений. Кавказский регион, включающий Большой и Малый Кавказ, характеризуется значительной территориальной контрастностью, связанной с различиями в геологи-геоморфологическом строении, сейсмотектонической активности...

Water discharge fluctuations in ungauged rivers, especially in the face of climate change and urban sprawl, can be dangerous and destructive. The water discharge dynamics of small urban rivers are highly variable and complex. Understanding these dynamics and their underlying causes is necessary for public awareness. Our work is focused on the small...

This paper provides a short overview of the large river research topics discussed during the 4th World’s Large Rivers Conference and submitted to the Geography Environment Sustainability special issue. The various aspects of hydrology, sediment transport and river morphology issues are presented based on case studies from Eurasia and Africa.

Geological exploration and mining operations have been conducted in the Vyvenka River basin on the Seinav-Galmoenan platinum deposit since 1994. The majority of the explored and prospective reserves are located in the valleys of spawning salmon tributaries, raising concerns about the environmental impact of mining activities. Despite the cessation...

Soil erosion and sediment export from hillslopes are significant problems associated with agriculture, especially in parts of the world where society is already living in extreme environments. In particular, mountainous environments remain severely understudied, with only a few runoff and sediment transport measurements available. It is necessary,...

The potential of construction of machine learning models was considered as applied to water level forecasting in mountain river reaches in Krasnodar Krai based on observation data on water levels at automated hydrological complexes of the Automated System of Flood Conditions Monitoring in Krasnodar Krai. The study objects were two mountain rivers i...

Data on the main climatic (air temperature, precipitation) and hydrologic (water runoff, suspended sediment yield) factors of extreme erosion events (EEEs) formation and development are collected and analyzed for the Crimean Mountain territory. A significant increase in air temperature is observed over the territory of Crimea. The change in the amo...

Quantifying and understanding catchment sediment yields is crucial both from a scientific and environmental management perspective. To deepen the understanding of land use impacts and climate change on sediment load, we explore mechanisms of the suspended sediment yield formation in the Northern Caucasus during the Anthropocene. We examine how sedi...

На основе использования комплекса полевых методов и расчетов по эрозионным моделям выпол-нена оценка перераспределения наносов и транспортируемого совместно с ними 137 Сs на водосборе Щекинского водохранилища (Тульская область) и определено изменение содержания 137 Сs в почвах различных типов, произошедшее за период 1986-2018 гг. Темпы смыва почв н...

Redistribution of sediments and Chernobyl-derived 137 Сs transported with them were estimated using a set of field methods and erosion model calculations for the Shchekino reservoir (Tula region) catchment, and changes in the contents of 137 Сs in soils of various types that occurred over 1986-2018 were determined. The rate of snowmelt soil erosion...

Vast areas of Europe were contaminated by the fallout of 137Cs and other radionuclides, as a result of the Chernobyl accident in 1986. The post-fallout redistribution of Chernobyl-derived 137Cs was associated with erosion and sediment transport processes within the fluvial system. Bottom sediments from lakes and reservoirs can provide a valuable so...

The overall increase in precipitation and the frequency of extreme rainfall is confirmed by several meteorological observations both on the Black Sea coast of the Caucasus. In this context, research on the drivers of an extreme meteorological event becoming a severe flood and an extreme geomorphological (erosion) event becomes especially important....

The subtropical zone of the Black Sea coast of the Caucasus is a region with a high frequency of flash floods, which led to significant river channel transformation and the removal of a huge amount of sediment. The hydrometeorological causes of the formation are investigated and the geomorphological consequences of the powerful flash flood on the T...

The restructuring of the lower reach of the Koiavgan Creek channel (the right bank tributary of the Djankuat River) occurred on 1 July 2015 after continuous rainfall with a total precipitation amount of 227 mm. This led to the breakthrough of the Djankuat Glacier lateral moraine. The lower reach of the creek channel was initially formed at the junc...

This study presents a dataset on long-term multidisciplinary glaciological, hydrological, and meteorological observations and isotope sampling in a sparsely monitored alpine zone of the North Caucasus in the Djankuat research basin. The Djankuat glacier, which is the largest in the basin, was chosen as representative of the central North Caucasus d...

Processes linked to climate change and intensified anthropogenic pressure influence the environment, the hydrology and by extent the denudation processes in the Caucasus mountain belt. Quantitative assessments of sediment fluxes and their temporal evolution in this mountain region are required for various environmental and engineering purposes, inc...

Channel bank erosion was monitored using erosion pin arrays in a small mountain stream located in the Tsanyk River basin near the Caucasian Black sea coast. The study area is characterized by high precipitation, low mountainous topography, and flysch bedrock. Erosion pins arrays were installed at six key sections each with different bank lithology...

Suspended sediment yield (SSY) from the Djankuat catchment, situated in the Central Caucasus (Russia), were monitored intensively during 2017 melt season (from June to September). The Djankuat stream is draining a small (9.1 km2) basin hosting glacierized areas of about 33.8%. Water discharge (Q, m3·s−1) and suspended sediment concentration (SSC, g...

Тhis study aims to evaluate features of the formation and sources of the basin component of the sediment yield during flash floods. Measuring campaigns were conducted in the weakly disturbed section of the Tsanyk River basin, located in the Greater Sochi area in the foothill-lowland zone of the Caucasus Black Sea coast. We used a set of field and c...

The study presents a dataset on long-term complex glaciological, hydrological, meteorological observations and isotopes sampling in an extremely underreported alpine zone of the North Caucasus. The Djankuat research basin is of 9.1km², situated on elevations between 2500–4000m, by 30% covered with glaciers. The biggest in the basin – the Djankuat g...

Sediment monitoring and assessment remain one of the most challenging tasks in fluvial geomorphology and water quality studies. As a response to various environmental and human disturbance effects, the main sources and pathways of the sediments transported within catchments, especially most pristine small one, may change. The paper discusses state-...

Abstract: a comparative assessment of small river basin component of suspended sediment yield generated due to extreme runoff events is the main topic of paper. Two small river basins located in wet (Black Sea coast of Western Caucasus, Russia) and dry (Sicily island, Italy) subtropics in the low mountains were selected. Both river basins are chara...

The article provides a brief information about legislative prerequisites that leaded to huge amount of projects aimed on flood area assessment. Based on Moscow’s water bodies typification a goal setting of related water resources justification and high level assessment is provided. The water body location and size, the level of human impact on chan...

The article summarizes the experience of studying hazardous channel processes for optimizing protection precautions for economic infrastructure objects located along the Avacha river banks. The results of the researches, aimed at the long-term planning of the safe operation of bridges and pipelines crossings and settlements in the Yelizovsky Distri...

Исследуются сезонные особенности формирования стока наносов малой реки Сухая Ели- зовская, протекающей на склонах действующих вулканов Авачинский и Корякский (Камчат- ский край). На основе обобщения полевых наблюдений и эрозионного моделирования MUSLE приводятся сведения о внутрисуточных (с интервалом 5–10 минут) и сезонных колебаниях сто- ка воды...

Paper is devoted to the study of seasonal features of sediment run-off formation of the Sukhaya Elizovskaya small river, flowing on the active volcanoes Avachinsky and Koryaksky slopes (the Kamchatka region). Informations about diurnal (at 5–10 minutes interval) and seasonal fluctuations of water and sediments run-off in different geologic-geomorph...

Sediment transport is determined by diurnal, within year and long-term regime of water flow fluctuations. Diurnal oscillations reflecting variations in the melt rate of snow and ice in the basin are superimposed by the numerous short-lived discharge fluctuations of irregular periodicity and magnitude. Due to the increase of water flow at the daily...