Geomorphic diversity in the braided-wandering Belá River, Slovak Carpathians, as a response to flood variability and environmental changes

Kidová, Anna; Lehotský, Milan; Rusnák, Miloš

doi:10.1016/j.geomorph.2016.01.002

Cited by 42 publications

(44 citation statements)

References 37 publications

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“…The post-flood period serial geomorphic analysis (POPSEGA, Kidová et al, 2016) approach has been used as the methodological template. The analysis of daily average discharges (data provided by the Slovak Hydrometeorological Institute (SHMÚ) from the Bardejov gauging station located immediately upstream from the study reach) and the analysis of culmination discharges (which were defined as the 3 rd level of flood alert declared by the SHMÚ), allowed us to identify two different flood periods.…”

Section: Methodsmentioning

confidence: 99%

Channel migration inferred from aerial photographs, its timing and environmental consequences as responses to floods: A case study of the meandering Topľa River, Slovak Carpathians

Rusnák

Lehotský

Kidová

2016

Moravian Geographical Reports

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The bank erosion area, rate of bank retreat and overall geomorphological and financial effects of channel migration due to recent flood events (over the time span 1987-2009) (1987-2002) to 1.6 m/year (2002-2009). The most eroded land cover category in the riparian zone is floodplain forest, followed by arable land, grasslands and pastures and shrubs. From an economic point of view, the eroded floodplain with arable land and grassland (€ 29,924.02 in total) is a negative consequence of channel migration.

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Section: Methodsmentioning

confidence: 99%

Channel migration inferred from aerial photographs, its timing and environmental consequences as responses to floods: A case study of the meandering Topľa River, Slovak Carpathians

Rusnák

Lehotský

Kidová

2016

Moravian Geographical Reports

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“…The methodology consists of and represents the identification of flood periods as well as data processing (e.g. (Kidová et al 2016)) and is based on different steps. First of all, it is a discrimination of bankattached and mid channel gravel bar areas as potential sediment sources and stores in GIS.…”

Section: Parametrization Of In-channel Sediment Connectivitymentioning

confidence: 99%

A Toolbox for Sediment Budget Research in Small Catchments

Chalov

Golosov

Tsyplenkov

et al. 2017

Geogr. environ. sustain.

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ABStrACt. 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-of-the-art in the sediment budget research for small catchments. We identified nine independent approaches in the sediment transport assessment and applied them in 11 catchments across Eurasia in the framework of an FP -7 Marie Curie -International Research Staff Exchange Scheme in 2012-2016. These methods were classified as: i) Field-based methods (In-situ monitoring of sediment transport;-Soil morphological methods and dating techniques; Sediment source fingerprinting; Sediment-water discharge relationships), ii) GIS and remote sensing approaches (Riverbed monitoring based on remote sensing/historical maps; parametrization of the channel sediment connectivity; Sediment transport remote sensing modeling), and iii) Numerical approaches (Soil erosion modeling and gully erosion (stochastic and empirical models); channel hydrodynamic modeling). We present the background theory and application examples of all selected methods. Linking fieldbased methods and datasets with numerical approaches, process measurements as well as monitoring can provide enhanced insights into sediment transfer and related water quality impacts. Adopting such integrated and multi-scale approaches in a sediment budget framework might contribute to improved understanding of hydrological and geomorphological responses. EnvironmEnt 44KEy worDS: sediment budget, suspended sediment, erosion processes, erosion modeling CitAtion:

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“…Conversely, the lower values of IIC indicate the progressive degradation of the braided pattern as a result of a decrease in sediment delivery from the floodplain and upstream. Aerial photos taken in 1957 and 2008 clearly show a decrease in the intensity of mass movements in the mountain part of the catchment and thus in sediment supply to the headwater reaches of the river between these dates (Kidová et al, ). Single‐thread reaches (RR1 and RR2) and channelized reach (RR8) also exhibit low indices.…”

Section: Discussionmentioning

confidence: 99%

“…The interpretation of B 1 must consider whether the increase in the braidplain area (channel widening, Figure e) is conditioned by channel bed aggradation or lateral erosion. Thus, in a degrading braidplain such as the Belá (Kidová et al, ), an increase or decrease in braidplain area ( B 1 values) is related only to lateral accretion or bank erosion. Note that the sources of sediments can be indicated on the basis of the values of both indices ( B 1 and B 2).…”

Section: Methodsmentioning

confidence: 99%

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Multitemporal assessment of coarse sediment connectivity along a braided‐wandering river

et al. 2018

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The article presents the postflood period coarse sediment connectivity (CSC) assessment approach on the basis of the holistic ideas of the interpretation of the long‐term CSC in river channels. Seven sets of remote sensing data (1949–2009) were used as the basic information sources to study the CSC along the braided‐wandering Belá River by using the patch‐graph approach for assessing the structural connectivity. The bar areas (patches), with 200 m direct links between them, and the attribute of a deflection angle of a link to the flow direction were parameters used to estimate the integral index of connectivity (IIC) and bar area and bar link importance indices. The higher values of the IIC fit with a well‐developed bar system. Conversely, the values of the IIC decrease because of the progressive degradation of the braided pattern. The potential functional CSC was inferred from the variability of the values obtained by the balance indices representing the balance of the channel–floodplain connectivity (B1) and the bar–bar connectivity (B2). Eight types of the potential functional CSC based on the balance indices and the deduction of processes that conditioned the channel–floodplain and in‐channel CSC linkages were identified. In order to assess the development of the braidplain pattern in terms of the structural connectivity during the study time span, the linear trendline analysis of IIC associated with flood periods was applied. On the basis of the coefficient of determination, all reaches exhibit a decreasing trend in IIC values but different response to flood periods.

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Geomorphic diversity in the braided-wandering Belá River, Slovak Carpathians, as a response to flood variability and environmental changes

Cited by 42 publications

References 37 publications

Channel migration inferred from aerial photographs, its timing and environmental consequences as responses to floods: A case study of the meandering Topľa River, Slovak Carpathians

Channel migration inferred from aerial photographs, its timing and environmental consequences as responses to floods: A case study of the meandering Topľa River, Slovak Carpathians

A Toolbox for Sediment Budget Research in Small Catchments

Multitemporal assessment of coarse sediment connectivity along a braided‐wandering river

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