Past ‘peak water’ in the North Caucasus: deglaciation drives a reduction in glacial runoff impacting summer river runoff and peak discharges

Rets, Ekaterina; Durmanov, Ivan; Kireeva, Maria; Смирнов, А.М.; Popovnin, Victor

doi:10.1007/s10584-020-02931-y

Cited by 17 publications

(17 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To a significant extent, calculated SSL trends correspond to water discharge trends (Rets et al , 2020) and suspended sediment load changes (Gusarov et al , 2021) calculated previously for the Greater Caucasus (Table 6 ). Therefore, we performed a correlation analysis using a nonparametric Spearman correlation coefficient to compare our findings with previous studies.…”

Section: Trendsupporting

confidence: 65%

“…Different statistical procedures can be used to detect a trend ofSSL . In this study, we applied a parametric approach used in Rets et al (2020) to compare SSL trends with their findings on water discharge (Q , m 3 •s -1 ) trends. Since this method is not presented clearly in the source paper, we explain it below.…”

Section: Trend Analysismentioning

confidence: 99%

“…We also applied a Pettitt (1979) test for single-point detection, another widely used technique (Zhang et al , 2008;Gao et al , 2011;Rets et al , 2020). This rank-based nonparametric technique can be more robust as it is distribution-free and insensitive to outliers and data skewness.…”

Section: Cumulative Sum Chartsmentioning

confidence: 99%

“…In contrast, the August runoff of non-glacierized catchments has increased by 1.5-11.5% per decade. With the growth of interest in environmental change over the Caucasus Mountains (Tielidze and Wheate, 2018;Toropov et al , 2019;Rets et al , 2020), it is crucial to consider the extent to which sediment flux is changing, as an important index of the functioning of the earth system mainly in response to landuse and climate changes (Walling and Fang, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Trend comparison from various studies. Suspended sediment load ], this study), suspended sediment discharge fromGusarov et al (2021) (SSD [kg*s -1 ]), and water discharge characteristics [m 3 *s -1 ] fromRets et al (2020): change in mean monthly discharges in June, July, August (Q june , Q july , Q aug ), and change in annual peak discharge (Q max ).SourceThis study(Gusarov et al, 2021) (Rets et al, 2020) (Rets et al, 2020) (Rets et al, 2020) (Rets…”

mentioning

confidence: 99%

See 4 more Smart Citations

How does the suspended sediment yield change in the North Caucasus during the Anthropocene?

Tsyplenkov

Golosov

Belyakova

2021

Preprint

View full text Add to dashboard Cite

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 sediment flux of various river basins with different land-use/landcover and glacier cover changes during the 1925-2018 period. Our analysis is based on observed mean annual suspended sediment discharges (SSD, kg·s−1) and annual fluxes (SSL, t·yr−1) from 33 Roshydromet gauging stations (Russia). SSL series have been analyzed to detect statistically significant changes during the 1925-2018 period. The occurrence of abrupt change points in SSD was investigated using cumulative sum (CUSUM) charts. We found that SSL has decreased by −1.81% per year on average at most gauges. However, the decline was not linear. Several transition years are expected in the region: increasing trends from the 1950s and decreasing trends from 1988-1994. Correlation analyses showed that variation in SSL trend values is mainly explained by gauging station altitude, differences in land use (i.e., the fraction of cropland), and catchment area. Nonetheless, more accurate quantifications of SSL trend values and more refined characterizations of the catchments regarding (historical) land use, soil types/lithology, weather conditions, and topography may reveal other tendencies.

show abstract

Section: Trendsupporting

confidence: 65%

Section: Trend Analysismentioning

confidence: 99%

Section: Cumulative Sum Chartsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

How does the suspended sediment yield change in the North Caucasus during the Anthropocene?

Tsyplenkov

Golosov

Belyakova

2021

Preprint

View full text Add to dashboard Cite

show abstract

How did the suspended sediment load change in the North Caucasus during the Anthropocene?

Tsyplenkov

Golosov

Belyakova

2021

Hydrological Processes

View full text Add to dashboard Cite

Quantifying and understanding catchment sediment fluxes is crucial both from a scientific and environmental management perspective. To deepen the understanding of landuse 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 sediment flux of various river basins with different land-use/landcover and glacier cover changes during the 1925-2018 period. Our analysis is based on observed mean annual suspended sediment discharges (SSD, kg s À1 ) and annual fluxes (SSL, t year À1 ) from 33 gauging stations of The Federal Service for Hydrometeorology and Environmental Monitoring (Russia). SSL series have been analysed to detect statistically significant changes during the 1925-2018 period. The occurrence of abrupt change points in SSD was investigated using cumulative sum (CUSUM) charts. We found that SSL has decreased by À1.17% per year on average at most gauges. However, the decline was not linear. Several transition years are expected in the region increasing trends from the 1950s and decreasing trends from 1988 to 1994. Correlation analyses showed that variation in SSL trend values is mainly explained by gauging station altitude, differences in landuse (i.e. the fraction of cropland), and catchment area. Nonetheless, more accurate quantifications of SSL trend values and more refined characterizations of the catchments regarding (historical) landuse, soil types/lithology, weather conditions, and topography may reveal other tendencies.

show abstract

Rivers

Goudie

2023

Landscapes of the Anthropocene With Google Earth

View full text Add to dashboard Cite

Past ‘peak water’ in the North Caucasus: deglaciation drives a reduction in glacial runoff impacting summer river runoff and peak discharges

Cited by 17 publications

References 41 publications

How does the suspended sediment yield change in the North Caucasus during the Anthropocene?

How does the suspended sediment yield change in the North Caucasus during the Anthropocene?

How did the suspended sediment load change in the North Caucasus during the Anthropocene?

Rivers

Contact Info

Product

Resources

About