Comparative analysis of the annual runoff distribution of the left-bank and right-bank tributaries of the Siverskyi Donets River Basin

2020 ◽  
Author(s):  
H. Bolbot ◽  
V. Grebin
Keyword(s):  
Comparative Analysis ◽  
River Basin ◽  
Annual Runoff ◽  
Left Bank ◽  
Annual Runoff Distribution

Estimation of the annual runoff distribution of the Siverskyi Donets River Basin in the period of current climate change

2020 ◽  
Author(s):  
Hanna Bolbot ◽  
Vasyl Grebin
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Annual Runoff ◽  
Low Flow ◽  
Left Bank ◽  
Spring Flood ◽  
Current Period ◽  
Current Climate ◽  
Annual Runoff Distribution ◽  
The Right

<p>The most urgent tasks facing hydrologists of Ukraine and the world include identifying patterns of rivers hydrological regime against the background of global warming, and assessing these changes. Changes in the annual runoff distribution under climate change impact require separate investigation of anthropogenically altered catchments, such as the Siverskyi Donets River Basin. Siverskyi Donets is the largest river in Eastern Ukraine and the main source of water supply for Kharkiv, Luhansk and Donetsk regions.</p><p>The annual runoff distribution of the Siverskyi Donets River Basin was evaluated by two periods: to the beginning of pronounced climatic changes and the current period. The research is proposed for three water year types: wet year, average year and dry year. The Siverskyi Donets Basin is a complicated water body with peculiar physico-geographical conditions, because of that annual runoff distribution is somewhat different for the left-bank tributaries, right-bank tributaries and, in fact, the Siverskyi Donets River itself.</p><p>It is found that the most runoff of the wet year for both periods is in the spring months. The current period is characterized by a much smaller runoff of spring flood (from the volume of annual runoff) than in the previous period. The annual runoff distribution is offset. Some differences can be observed between the left and right tributaries. For the left-bank tributaries, which has less anthropogenic load, climate change has led to a significant increase of winter and summer-autumn low flow periods. On the right tributaries of the Siverskyi Donets, which are flowing within the industrial part of the Donbass, the low flow period has not changed, or even decreased. Such situation is due to the decrease of mine water disposal because of the industrial production decrease in the region.</p><p>The largest part of the annual runoff in the average year falls on February and March. In the current period, the spring flood has decreased, but the summer and autumn low flow period has increased. The left-bank tributaries runoff during the winter low period is decrease. Instead, the runoff attributable to the autumn and winter low period has increased for the right-bank tributaries and the Siverskyi Donets itself.</p><p>Analyzing the runoff distribution of dry year, we can conclude that the most wet is February. At present, in dry years, spring flood practically are not allocated from the hydrograph; the baseflow months runoff significantly increased. The volume of winter runoff of the Siverskyi Donets River Basin is increased. Actually, for the Siverskyi Donets River the runoff of the summer period has increased and the runoff of the winter and autumn periods has decreased at the present stage.</p><p>The annual runoff distribution of the Siverskyi Donets River Basin in the current climate change has undergone significant changes: the spring flood has decreased and the summer-autumn low flow has increased.</p>

MODERN TRANSFORMATION OF SEASONAL RUNOFF DISTRIBUTION OF THE SIVERSKYI DONETS RIVER BASIN

2020 ◽  
pp. 48-58
Author(s):  
H.V. Bolbot ◽  
V. V. Grebin
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Mine Drainage ◽  
Annual Runoff ◽  
Donets Basin ◽  
Left Bank ◽  
Modern Period ◽  
Winter Runoff ◽  
Annual Runoff Distribution ◽  
The Right

The annual runoff distribution of the Siverskyi Donets River Basin in the period of modern climate change was estimated. The annual runoff distribution of the Siverskyi Donets Basin was researched for two characteristic periods (from the beginning of observations to 1988 and from 1989 to 2018). The assessment was performed for three water year types: wet year, average year and dry year. The research was performed for three groups of rivers depending on their affiliation to a particular part of the Basin. During the research, the average monthly runoff of the hydrological gauges, which we selected for the study were averaged. The annual runoff distribution was leveled in the current period. The Siverskyi Donets Basin is characterized by the peculiar physico-geographical conditions, so the annual runoff distribution is somewhat different for different part of the Basin. Differences in the annual runoff distribution of the right-bank tributaries, the left-bank tributaries and the Siverskyi Donets River were revealed. For the left-bank tributaries, which are less affected by anthropogenic load, climate change has led to a significant increase in runoff of the winter and summer-autumn low period. For the right-bank tributaries of the Siverskyi Donets, flowing within the industrial part of Donbas, the share of low period runoff has not changed, or even decreased. This is due to the reduction of mine drainage, due to the reduction of industrial production in the region. Instead, the share of autumn-winter period in the annual runoff has increased for the right-bank tributaries and the Siverskyi Donets River itself. It is established that the share of spring floods from the annual volume of runoff has significantly decreased and the share of the summer-autumn period for the rivers of the Siverskyi Donets Basin in the modern period has increased. The winter runoff of the left-bank tributaries of the modern period is characterized by an increase. The right-bank tributaries of the Basin are characterized by a decrease in winter runoff. Currently, in dry years, spring flood is practically not allocated on the annual hydrograph; the share of runoff in the limited months has significantly increased. At the present stage of climate change, the annual runoff distribution of the Siverskyi Donets River Basin has undergone significant changes.

scholarly journals Intra-annual Runoff Distribution in the Pripyat River Basin

2020 ◽  
Vol 212 ◽  
pp. 01016
Author(s):  
Alexander Volchak ◽  
Sergey Parfomuk ◽  
Svetlana Sidak
Keyword(s):  
River Basin ◽  
Annual Runoff ◽  
Time Variability ◽  
Spring Flood ◽  
Present Stage ◽  
Runoff Regulation ◽  
Annual Runoff Distribution ◽  
The Relationship ◽  
Basin Area

The time variability features of the intra-annual runoff distribution in the Pripyat River basin at the present stage are considered. The study used data from 10 active gauging-stations at the basin area for the period of enabled observations. Changes in the nature of natural runoff regulation of rivers are shown. An increase in the coefficient of natural runoff regulation after the period 1970-1983 for the rivers of the Pripyat River basin was revealed. The relationship between the coefficient of uneven runoff and the share of spring flood was established.

scholarly journals GEOLOGICAL AND HYDROGEOLOGICAL STRUCTURE OF RIVER BASINS AND SOIL COMPOSITION AS AN IMPORTANT FACTOR IN THE FORMATION OF THE STREAMFLOW OF THE TERRITORY (ON THE EXAMPLE OF THE DEBED RIVER BASIN)

2018 ◽  
pp. 3-9
Author(s):  
V. G. Margaryan
Keyword(s):  
Spatial Distribution ◽  
River Basin ◽  
River Runoff ◽  
Water Regime ◽  
River Basins ◽  
Annual Runoff ◽  
Soil Composition ◽  
Annual Runoff Distribution ◽  
Hydrogeological Structure

The regularities of the spatial distribution of the river runoff of the Debed basin, the features of the water regime and the intra-annual runoff distribution caused by the geological and hydrogeological structure of the region and composition of soil were discussed and analyzed. Discussed some issues of regulation and management of river runoff associated with the feature of the geological and hydrogeological structure of the river basin and the composition of soil.

scholarly journals The Population of the Ros’ River Basin during the Pre-Mongol and Golden Horde Periods

2021 ◽  
Vol 9 (3) ◽  
pp. 478-505
Author(s):  
Oleg B. Bubenok ◽  
◽  
Alexander B. Golovko ◽  
Keyword(s):  
Comparative Analysis ◽  
River Basin ◽  
Thirteenth Century ◽  
Stages Of Change ◽  
Local Population ◽  
Left Bank ◽  
Old Russian ◽  
First Time ◽  
Archaeological Excavations ◽  
Written Sources

Research objectives: To determine both the ethnic structure of the population of the Ros’ river basin before the arrival of the Mongol armies in the first half of the thirteenth century and the changes to the local population after the inclusion of this region into the Golden Horde. Materials: Written sources of Old Russian, Byzantine, Western European, Persian, and Mongolian origin; results of archaeological excavations in the Ros’ river basin; toponymy data. Results and novelty of the research: For the first time ever, a comparative analysis of the evidence of written sources and archaeology about the ethnic structure of the population of Ros’ river basin was carried out not only for the pre-Mongol time, but for the Golden Horde period as well. As a result, it has been made possible to trace the stages of change among the former population of region. It has been established that for the beginning of the thirteenth century, the left bank of the Ros’ river was dominated by a Turkophone population known in written sources as the Torks or Black Hoods. The arrival of the Mongols here led to the migration of significant groups of this population to the steppes of Eastern Europe. However, some Torks continued to live in their former locations according to the data of toponyms and hydronyms. At the same time, the Golden Horde rulers began to populate the banks of the Ros’ river by the militarized immigrants from the Circassian lands and other regions of the Golden Horde. This has been proven by the results of excavations of barrows near the Yablonovka and Tagancha villages. This resettlement was the result of a pragmatic policy of the Golden Horde rulers aimed at strengthening this part of the border between the Ulus of Jochi and Rus’, running along the Ros’ rive.

DATA RECOVERY OF ANNUAL RIVER RUNOFF IN THE SYRDARYA RIVER BASIN

2021 ◽  
Vol 100 (1) ◽  
pp. 17-26
Author(s):  
T. Kazakbayeva ◽  
Keyword(s):  
River Basin ◽  
River Runoff ◽  
Annual Runoff ◽  
Data Recovery ◽  
Base Period ◽  
Quantitative Estimates ◽  
Integral Curves ◽  
Analogue Method ◽  
Runoff Rate ◽  
Variability Index

The data recovery of the annual runoff was carried out and correlation dependences were obtained, which were used to calculate the runoff rate for each of the selected rivers in the Syrdariya river basin. Differential integral curves were constructed from the runoff data using the variability index. When restoring the missing data on the annual runoff, the river-analogue method was applied. The actual series of observations are given for a longterm period. The base period was chosen from 1960 to 2015. Quantitative estimates of the effectiveness of bringing the average values to a multi-year period are also provided.

scholarly journals Features of the Spring Flood Formation in the Arpa River Basin

2021 ◽  
pp. 126-152
Author(s):  
Keyword(s):  
River Basin ◽  
Weighted Average ◽  
Close Correlation ◽  
Annual Runoff ◽  
Average Height ◽  
Spring Flood ◽  
Correlation Relationship ◽  
Catchment Areas ◽  
The Mean ◽  
Maximum Runoff

The article considers main physical and geographical factors affecting the runoff, spring flood of rivers in the Arpa River basin, and analyzes the regularities of their spacetime distribution. The authors have obtained correlation relationship between the values of the flood runoff layer, the mean module maximum runoff and weighted average height of the catchment area of the Arpa River, between the mean annual maximum runoff module for the period floods and catchment areas of rivers. These dependencies can be used for preliminary estimates of the spring flood runoff of unexplored rivers of the territory under consideration. A close correlation between the values of the annual runoff and the runoff of the spring flood in the section of the Arpa River – Dzhermuk has been also revealed. It can be used for forecasting the annual flow.

scholarly journals Análise comparativa da fragilidade ambiental da bacia do rio Piracicaba a partir da aplicação de dois modelos metodológicos: suporte para o estabelecimento e proposição de Corredores Ecológicos.

2020 ◽  
Vol 13 (6) ◽  
pp. 3060
Author(s):  
Suelen Crispim Sutil ◽  
José Augusto Costa Gonçalves ◽  
Eliane Maria Vieira
Keyword(s):  
Environmental Management ◽  
Comparative Analysis ◽  
River Basin ◽  
Forest Fragmentation ◽  
Riparian Forests ◽  
Forest Patches ◽  
Biological Corridors ◽  
Gradual Development ◽  
History Of ◽  
Piracicaba River

A avaliação da fragilidade ambiental das bacias hidrográficas vem se tornando cada vez mais importante no cenário ambiental, devido ao desenvolvimento gradativo da sociedade e a expansão tecnológica e econômica ao longo dos anos. Uma estratégia adotada para amenizar a degradação e restabelecer o equilíbrio, é a formação de corredores ecológicos (CEs), que auxilia na ligação entre remanescentes naturais. A bacia do rio Piracicaba passa por um longo histórico de degradação e de fragmentação florestal, principalmente próximo às cidades devido ao desmatamento de matas ciliares. Em vista disso, este trabalho analisou e comparou a aplicação de dois diferentes modelos de fragilidade ambiental, aplicada a esta bacia e, a partir de seus produtos identificou a melhor metodologia base para a proposição de corredores ecológicos na região. Com os resultados obtidos, foi possível inferir que, além de grande parte da bacia apresentar grau de fragilidade entre fraco e médio, as áreas mais vulneráveis são aquelas mais próximas à cabeceira da bacia. O estabelecimento dos corredores ecológicos abrangeu, prioritariamente, as áreas de maior fragilidade entre a conexão dos fragmentos de vegetação e as Áreas de Preservação Permanentes (APPs), assim, verificou-se que é necessário o reflorestamento de cerca de 342,24 km² das APPs da bacia para que seja possível a conexão entre as remanescentes e 2,0 km²  de áreas de ligação. Comparative analysis of the environmental fragility of the Piracicaba river basin using two methodological models: support for the application and proposition of Biological Corridors A B S T R A C TThe assessment of a river basin’s environmental fragility has become even more important on the environmental scenery due to society’s gradual development and technological and economic expansion over the years. An adopted strategy to ease the degradation and restore the ecological balance is the establishment of biological corridors that can assist the connection between natural forest patches. The Piracicaba river basin has been going through a long history of degradation and forest fragmentation, especially near the cities because of the deforestation of riparian forests. Therefore, this paper analyzed and compared the application of two adapted environmental fragility models in this river basin and identified from their products the best base methodology for the proposition of ecological corridors. From the results, it was possible to infer that, in addition to a big part of the basin present poor and average fragility level, the most vulnerable areas are the ones close to the source of the main rivers. The biological corridors establishment covered, primarily, the most vulnerable areas between the fragments of remaining forests and the Permanent Preservation Areas (PPAs) and, from this, it was possible to verify that the reforestation of around 132,14 mi² of PPAs is necessary for the connection of patches of remaining forests and 0,77 mi² of connections areas.Keywords: environmental vulnerability, geoprocessing, environmental management.

scholarly journals Development of a Regional Regression Model for Estimating Annual Runoff in the Hailar River Basin of China

2010 ◽  
Vol 02 (11) ◽  
pp. 934-943 ◽  
Author(s):  
Limin Duan ◽  
Tingxi Liu ◽  
Xixi Wang ◽  
Yanyun Luo ◽  
Long Wu
Keyword(s):  
Regression Model ◽  
River Basin ◽  
Annual Runoff ◽  
Regional Regression

scholarly journals An evaluation of the effect of future climate on runoff in the Dongjiang River basin, South China

2015 ◽  
Vol 368 ◽  
pp. 257-262
Author(s):  
K. Lin ◽  
W. Zhai ◽  
S. Huang ◽  
Z. Liu
Keyword(s):  
Climate Change ◽  
River Basin ◽  
South China ◽  
Annual Runoff ◽  
Future Climate ◽  
Weather Data ◽  
Future Climate Change ◽  
Dongjiang River ◽  
The Future ◽  
The Impact

Abstract. The impact of future climate change on the runoff for the Dongjiang River basin, South China, has been investigated with the Soil and Water Assessment Tool (SWAT). First, the SWAT model was applied in the three sub-basins of the Dongjiang River basin, and calibrated for the period of 1970–1975, and validated for the period of 1976–1985. Then the hydrological response under climate change and land use scenario in the next 40 years (2011–2050) was studied. The future weather data was generated by using the weather generators of SWAT, based on the trend of the observed data series (1966–2005). The results showed that under the future climate change and LUCC scenario, the annual runoff of the three sub-basins all decreased. Its impacts on annual runoff were –6.87%, –6.54%, and –18.16% for the Shuntian, Lantang, and Yuecheng sub-basins respectively, compared with the baseline period 1966–2005. The results of this study could be a reference for regional water resources management since Dongjiang River provides crucial water supplies to Guangdong Province and the District of Hong Kong in China.

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