scholarly journals Present-day Special Features of the Don River Basin Rivers Spring Tide

2013 ◽  
pp. 60-76
Author(s):  
Keyword(s):  
River Basin ◽  
Water Regime ◽  
Spring Tide ◽  
High Water ◽  
Annual Runoff ◽  
Water Runoff ◽  
Regime Changes ◽  
Flow Duration ◽  
High Water Period ◽  
Don River

The article is devoted to present-day specific features of the Don River basin rivers spring tide. On the basis of the recent data on the rivers’ water regime changes of maximal water flow, duration of high water period, high water runoff fractions in the annual runoff and hydrograph forms have been shown. It has been demonstrated that the spring tide character change is closely linked with the other phases of rivers’ water regime change.

Current changes in river water regime in the Don River Basin

2013 ◽  
Vol 40 (6) ◽  
pp. 573-584 ◽  
Author(s):  
R. G. Dzhamalov ◽  
N. L. Frolova ◽  
M. B. Kireeva
Keyword(s):  
River Water ◽  
River Basin ◽  
Water Regime ◽  
Don River

Mapping the current state and transformation of the water regime of rivers in the European territory of Russia

2020 ◽  
Vol 961 (7) ◽  
pp. 14-26
Author(s):  
N.L. Frolova ◽  
M.B. Kireeva ◽  
M.A. Kharlamov ◽  
T.E. Samsonov ◽  
A.L. Entin ◽  
...  
Keyword(s):  
Water Regime ◽  
Hydrological Cycle ◽  
Discharge Rate ◽  
Annual Runoff ◽  
European Russia ◽  
East European Plain ◽  
Historical Period ◽  
Water Runoff ◽  
Precipitation Regime ◽  
Runoff Depth

Water regime of rivers is an important characteristic of the surface land waters as a natural environment component and object of economic use. The reaction of the rivers’ water regime to the climatic changes, including the case of extreme hydro-meteorological events, has not been studied carefully yet. It is necessary to adapt the water part of national economy to the current trends and characteristics of rivers’ water and ice regime. The analysis and inventory of these trends are required to make appropriate decisions. The authors present the methodology and the results of mapping the current European Russia rivers’ water regime and its modern transformation. The resulting map series includes the maps of the season beginning months, the coefficient of natural flow regulation, the average runoff depth for the "historical" period, extreme monthly equal discharge rate, the ratio of average monthly discharge between seasons, the runoff depth in the "modern" period and its change compared to the "historical" one, a map of water regime transformation, as well as a number of supplementary climatic maps reflecting changes in temperature and precipitation regime. The obtained maps allowed revealing numerous spatiotemporal tendencies, including intensification of the hydrological cycle; the increase in the annual runoff depth in the middle of the East European Plain; increase of absolute unevenness of summer low-water runoff and decrease of relative unevenness; the decrease of maximum discharge; significant change of the ratio of discharge components for the most rivers of the European Russia, the most important feature of which is decreasing the share of snowmelting component.

scholarly journals The Change of the Water Regime of the Volga River in the Area of the Protected Island Bakhilovsky

2020 ◽  
Author(s):  
Keyword(s):  
Water Content ◽  
Water Regime ◽  
High Water ◽  
Ecological State ◽  
Spring Flood ◽  
Volga River ◽  
High Water Period ◽  
Average Water ◽  
Annual Water

The ecological state of the protected Islands Seredysh and Shalyga (now Bakhilovsky island) depends on the water content and flow of the Volga River. We have analyzed the long-term changes in the water flow of the Volga River for the period 1958-2017 in the alignment Zhiguli dam, located 12 km upstream from the island. According to the average annual water consumption, there are three periods that differ from each other in water content: low-water period (1958–1976), high-water period (1977–1997) and the period of average water content (1998–2017), with extremely low-water (1967, 1973, 1975, 1976, 1977, 1996) and extremely high-water (1966, 1979, 1981, 1990, 1991, 1994) years. In highwater years, during the passage of the spring flood, the island is almost completely flooded, and in low-water years, during the summer low water, the area of the island increases and changes its configuration.

scholarly journals Intra-annual surface runoff distribution of The Chatkal River in different watery years

2021 ◽  
Vol 264 ◽  
pp. 01035
Author(s):  
Sobir Kodirov ◽  
Jamoljon Djumanov
Keyword(s):  
Water Availability ◽  
Surface Runoff ◽  
High Water ◽  
Annual Runoff ◽  
Small Rivers ◽  
Water Reservoirs ◽  
High Water Period ◽  
Left Tributary ◽  
Annual Runoff Distribution

In planning water reservoirs, it’s significant to understand surface runoff behaviors, especially in medium and small rivers. The article examines water availability results during different watery years of The Chatkal River, which is the biggest left tributary of The Chirchik River. The computation of intra-annual runoff distribution for three different years of watery and for two distinguished periods of watery was carried out. It is derived that independently from the watery of year, 80% of runoff originates in high water period and 20% in the low water period.

scholarly journals The Lake Baikal Level Regime: Retrospection and Current Status

2017 ◽  
Author(s):  
Keyword(s):  
River Basin ◽  
Lake Baikal ◽  
Annual Runoff ◽  
Current Status ◽  
Lake Basin ◽  
Water Runoff ◽  
Selenga River Basin ◽  
Selenga River ◽  
Instrumental Observations ◽  
Annual Water

The Lake Baikal history and the main problems of its regulation have been discussed. Analysis of the lake level alterations over the whole period of instrumental observations (1900–2016) has been carried out. A protracted low-water period was observed in the Baikal basin fromthe middle 90s of XX century. It was the longest for the whole period of instrumental observations. The extreme low-water situation in the lake basin in 2014–2015 has been studied. A statistically significant trend of the temperature increase and precipitations decrease has been stated. Atmospheric precipitations affect the river runoff many-year fluctuations more than other water balance elements. It was stated that the Lake Baikal level directly depends on the Selenga River water content. Minimal runoff during the low-water periods demonstrates a tendency to decrease, just like the annual runoff. It was a perpetual series of the reduced runoff that caused the minimal runoff negative trend, as a result of which the water resources inflow to the Lake Baikal was recordbreaking minimal over the previous years. The Selenga River basin runoff parameters spatial-temporal reconstruction was performed according the hydrometric posts and dendro/climatic stations data. The water runoff reconstruction statistic models show a good agreement between the Archangel fir ring amount of growth and annual water flow. The historic chronicles and moisture regimes have been chronologically compared on the basis of the obtained water regime reconstructions. The historic chronicles analysis is an indirect verification of the obtained time series related to the water flows in the Selenga River basin.

scholarly journals Peculiarities of annual internal distribution of small rivers’ runoff (on example of the Udy river)

2018 ◽  
Keyword(s):  
River Basin ◽  
Annual Runoff ◽  
Spring Water ◽  
Small Rivers ◽  
Water Runoff ◽  
Internal Distribution ◽  
Annual Volume ◽  
Definition Of ◽  
Annual Distribution ◽  
Main Material

Formulation of the problem. Water is the basis of life and, therefore, the questions regarding the definition of annual runoff distribution as a whole in Kharkiv region and in the context of individual river basins remain actual. The study of the domestic annual runoff is due to the fact that the Udy River basin belongs to the poorly watered areas, and in recent years climate change leads to a decrease in drainage during the year, including seasonal runoff changes, which may cause water supply problems in the economic sphere. The purpose of the article is to study modern features of the annual distribution of the water runoff of the Udy River basin. Presenting main material. The article deals with the peculiarities of the formation and changes in the annual flow of the river Udy basin for 35 years (1991-2015). Having analyzed the average monthly water consumption in the Udy basin, it can be noted that the annual distribution of drainage for this period is close to all rivers - typical spring flood (March), summer (August, September) and winter (December, January) months. However, the share of spring water in the Udy basin in the annual volume of drainage has decreased and the supply of rivers has changed. In connection with climatic changes, namely, the decrease in winter rainfall, there was an increase in the share of underground supply which contributed to its alignment with the share of snow intra-annual distribution. Conclusions. Having studied annual distribution of the river basin’s flow in the Udy River, it has been found that the share of spring water in the annual volume of drainage decreased from 42-36 to 36-25 %. In recent years, there has been less precipitation in winter and, therefore, snow supply is not prevailing, and there is an increase in the share of underground supply.

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 Macrophytes in the littoral of Lake Arakhley in different states of water regime

2019 ◽  
Vol 38 (3) ◽  
pp. 225-239
Author(s):  
Alexey P. Kuklin ◽  
Balzhit B. Bazarova
Keyword(s):  
Water Content ◽  
Water Level ◽  
Mixed Type ◽  
Water Regime ◽  
Aquatic Vegetation ◽  
High Water ◽  
Sand Beach ◽  
Climate Fluctuations ◽  
High Water Period

AbstractThe study of aquatic vegetation in the littoral of the dimictic water bodies of taiga is of particular interest in case of long-term observations carried out under conditions of climate fluctuations. During the low-water period, drying of the littoral with a decrease in the water level leads to the changes in phytomass of macrophytes, as well as in the composition of species and their distribution by depth. The area of littoral covered with ice in winter is also large in the low-water period; it affects the growth of perennial plants. When the water level decreases, the sand beach replaces the sand and pebble beach; it leads to the disappearance of epilithon and the predominance of rooting plants. The features of vegetation were determined for each period of water content. The low-water period is characterised mostly by grass-type vegetation; the high-water period is characterised by vegetation of mixed type.

scholarly journals Investigation of Hydrological Characteristics’ Dynamics of the Regulated High Water Runoff of the Belaya River Middle Flow

2013 ◽  
pp. 91-99
Author(s):  
Keyword(s):  
Meteorological Factors ◽  
High Water ◽  
Annual Runoff ◽  
Water Runoff ◽  
Hydrological Characteristics ◽  
Water Volumes

On the basis of observations of Yumaguzinsk and Nugush dams’ sites and Sterlitomak City site over the 2006–2011 period the dynamics of hydrological characteristics of the regulated high water runoff of the Belaya River middle flow up to the Sterlitomak site has been studied. Hydrological characteristics have been determined; their dependence on meteorological factors’ impact has been demonstrated. Per cent relations of the annual runoff and high water volumes have been revealed.

scholarly journals Changes in water regime of the River Ural basin

2019 ◽  
Vol 488 (5) ◽  
pp. 545-549
Author(s):  
Zh. T. Sivokhip ◽  
V. M. Pavleychik ◽  
A. A. Chibilev
Keyword(s):  
River Basin ◽  
River Runoff ◽  
Water Regime ◽  
Climatic Factors ◽  
High Water ◽  
Leading Role ◽  
Integral Curves ◽  
Environmentally Safe ◽  
Seasonal Runoff

Based on the analysis of the annual and seasonal variability of river runoff, the specificity of the water regime of the Ural River basin has been determined. It has been established that in recent decades a trend of redistribution of seasonal runoff has been observed, expressed in an increase in the share of runoff during the winter. Based on the analysis of difference integral curves, phases of different water content were revealed; the prevalence of common-mode runoff fluctuations indicates the leading role of climatic factors of runoff formation. An important feature of the rivers regime of the steppe regions is the intra-annual variability of the flow, which forms extreme hydrological situations (low water or high water). The results should be considered when organizing effective and environmentally safe water use in the Ural River basin.

Sign in / Sign up

Export Citation Format

Share Document