Transformation of estimated characteristics of the annual and maximal runoff in the major tributaries of Lake Baikal

Sinyukovich, V. N.; Chernyshov, M.S.

doi:10.1134/s0097807817030174

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…Whereas on the second day, the spatial trend from upstream to downstream was not observed, which could be due to the rainfall on the second day of 21.55 mm. This is due to the influence between rainfall and the condition of dissolved solids, in this case including sediment (Sinyukovich, 2001). Based on observations in this study, the majority of microplastic forms on the first and second days were fragmented with a range of 6220-10580 particles/kg.…”

Section: Microplastic Abundant In Each Segment Of River Sedimentmentioning

confidence: 71%

“…The value of the dissolved solids parameter is in the range of 93.3 mg/L to 397 mg/L, which still meets the quality standards of classes 1 to 4. There is a difference in the value of dissolved solids on the first and second days which can be caused by rainfall on the second day of 21.55 mm, where there is a correlation between river water discharge caused by rainfall and the concentration of dissolved solids in water bodies (Sinyukovich, 2001). Turbidity parameters at all seven sampling points ranged from 44.7 NTU to 279 NTU, with the third point having the highest value.…”

Section: River Water Field Parameters and Land Use Around The River Bodymentioning

confidence: 89%

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Spatial Dynamics of Microplastic Pollution in Water and Sediments of the Ciliwung River along with Conditions of Water Quality Field Parameters and Population Density

Mahendra¹,

Pratama²,

Moersidik³

et al. 2023

J. Ecol. Eng.

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Microplastics are emerging contaminants that degrade from textile plastic products, petroleum, and cosmetic equipment with sizes less than 5 mm. There are more than 70,000 settlements located along the Ciliwung River in DKI Jakarta that use the river water as a source of clean water. The most common type of waste found in the Ciliwung River to date is plastic waste, which can cause flooding and other disasters. The Ciliwung River can currently be found with microplastic pollution which has an impact on exposure to living things in the river, such as in case studies in the Ciliwung River estuary area. The problem is the exposure to 75% of blue panchax fish (Aplocheilus sp.) as many as 1.97 particles per fish with sizes of 300 to 500 μm. This research will focus on analyzing the dynamics of microplastic quantity in water and sediment of the Ciliwung River along with the correlation between field parameters and population density around the banks of the Ciliwung River. When viewed from the seven points that represent the Ciliwung River downstream to upstream in DKI Jakarta Province, the number of microplastics is in the range of 320-741 particles/L. For the dominating form, it can be analyzed that the majority of microplastic forms are fragments (97%), followed by fibers (2.9%) and pellets (0.1%). While in the sediment, the number of microplastics in the Ciliwung River sediment is in the range of 6560-10630 particles/kg. The population density factor has the highest correlation to the number of microplastics with a value of r = 0.702. This is associated between population density and high microplastic emission loads.

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Section: Microplastic Abundant In Each Segment Of River Sedimentmentioning

confidence: 71%

Section: River Water Field Parameters and Land Use Around The River Bodymentioning

confidence: 89%

Spatial Dynamics of Microplastic Pollution in Water and Sediments of the Ciliwung River along with Conditions of Water Quality Field Parameters and Population Density

Mahendra¹,

Pratama²,

Moersidik³

et al. 2023

J. Ecol. Eng.

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“…Both a decrease in precipitation and permafrost thawing are considered as reasons for maximum runoff reduction (Törnqvist et al 2014). Since 1971, a weak (~ 0.2% per year) tendency towards a decrease in the maximum runoff of rainfall oods is also characteristic of the Upper Angara and Barguzin rivers (Sinyukovich and Chernyshov 2017). Projections of the Selenga river ow change vary greatly and show both growth and decrease for different scenarios (Törnqvist et al 2014;Pietroń et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Climate Change Impact On Flood Runoff Over Lake Baikal Catchment

Grigorev¹,

Kharlamov²,

Semenova³

et al. 2021

Preprint

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Water level and distribution of dissolved and suspended matter of Lake Baikal are strongly affected by river inflow during rain-driven floods. This study analyses river flow changes at 44 streamflow gauges and related precipitation, evaporation, potential evaporation and soil moisture obtained from ERA5-Land dataset. Based on Sen-Slope trend estimator, Mann–Kendall non-parametric test, and using dominant analyses we estimated influence of meteorological parameters on river flow during 1979-2019. Using ridge-regression we found significant relationships between precipitation elasticity of river flow and catchments features. Half of the gauges in eastern part of Selenga river basin showed a significant decreasing trend of average and maximum river flow (up to -2.9%/year). No changes in central volume date of flood flow have been found. A reduction in rainfall amounts explains more than 60% of runoff decline. Decrease in evaporation is observed where precipitation decrease is 0.8%/y or more. Catchments where the precipitation trends are not as substantial are associated with increasing evaporation as a result of the increase of potential evaporation. Negative trends of precipitation are accompanied by negative trends of soil moisture. Finally, the study reveals sensitivity of the catchments with steep slopes in humid area to precipitation change.

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“…The water regime of the river Selenga is characterized by low spring flood, rainfall floods in summer, and moderate inflow by autumn-winter. The changes in water inflow into Lake Baikal and runoff fluctuations in the Selenga river basin were studied in References [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Climatic Warming and Wildfires on Recent Vegetation Changes in the Lake Baikal Basin

Safronov

2020

Climate

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The vegetation changes in the area of the Russian part of the Lake Baikal water basin for the period 2010–2018 were investigated using MCD12C1 land cover. The decline in swamp systems area began in 2012 and continued until 2015, after which it partially recovered during the heavy rain season in 2018. During the period of 2010–2018, the area covered by forests did not exceed 20.3% of the Baikal basin of the total portion of the Baikal basin under study. Deforestation began in 2013 and continued until 2017. Over 2013–2018, the forest level decreased by 12.1% compared to the forest state in 2013. The analysis of summer rainfalls and aridity indexes was performed by using CRU TS and GPCC climatic datasets. It is shown that the interannual variations of precipitation and aridity changes are determined by the variability of the global circulation of moist air masses. The MCD64A1 (burned area) and MCD14ML (active fires) MODIS products were used for investigation of the influence of wildfires on vegetation changes. The spatial hotspot distributions and burned areas in general correspond to aridity zones, but they cannot explain the 20-fold increase in the number of wildfires. Most of the hotspot locations are away from settlements, roads, and loggings, in difficult-to-access mountainous areas, as well as in the low-inhabited areas of Siberia. We assume that the nature of such ignitions includes dry thunderstorms, pyrocumulus lightning, or remote impact.

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Transformation of estimated characteristics of the annual and maximal runoff in the major tributaries of Lake Baikal

Cited by 11 publications

References 5 publications

Spatial Dynamics of Microplastic Pollution in Water and Sediments of the Ciliwung River along with Conditions of Water Quality Field Parameters and Population Density

Spatial Dynamics of Microplastic Pollution in Water and Sediments of the Ciliwung River along with Conditions of Water Quality Field Parameters and Population Density

Climate Change Impact On Flood Runoff Over Lake Baikal Catchment

Effects of Climatic Warming and Wildfires on Recent Vegetation Changes in the Lake Baikal Basin

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