Suspended sediment load estimation in a severely eroded and data poor catchment

Bannatyne, Laura; Foster, Ian D L; Rowntree, Kate; Waal, Bennie van der

doi:10.1002/hyp.14730

Cited by 4 publications

(3 citation statements)

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“…Deployment of pumping samplers and continuously‐recording turbidity monitors not only produced high‐quality records but also allowed the inadequacies of infrequent spot sampling to be demonstrated. However, in some challenging environments, such as the Tsitsa River catchment of the Eastern Cape, South Africa, alternative approaches to the use of sophisticated monitoring equipment may be required, and Bannatyne et al (2022) demonstrate in this Special Issue how a manual, flood‐focused suspended sediment sampling programme maintained by a citizen‐technician sampling network, in conjunction with a discharge‐weighted interpolation estimator, can be used to produce robust, sustainable and precise estimates of suspended sediment loads.…”

Section: Themesmentioning

confidence: 99%

Understanding sediment in river systems—Building on a 50‐year contribution

Webb

Foster

McNamara

2023

Hydrological Processes

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Walling wrote his first papers about suspended sediment in Devon river catchments as a young hydrologist more than 50 years ago in the early 1970s. In those days, some very senior scientists told him he was wasting his time, because soil erosion in Britain was not a problem, and British rivers were not muddy! A half a century, and more than 500 publications (the majority of which are devoted to fine sediment in river catchments) later, Des is regarded as one of the world's leading hydrologists who have focused on erosion and sediment yields and catchment sediment budgets. His prolific, distinguished and frequently highly-cited research contributions have been recognized by important awards including the IAHS/UNESCO/ WMO International Hydrology Prize, the American Geophysical Union Hydrologic Sciences Award, the Norman Hudson Memorial Award of the World Association of Soil and Water Conservation, the Chien Ning International Prize of the World Association for Sedimentation and Erosion Research and the Victoria Medal of the Royal Geographical Society. Des has advocated eloquently and powerfully that sediment studies have an important role within the discipline of hydrology, not only because of the implications for environmental protection and sustainable development, but also because fine sediment represents a key pathway for material transport at all scales ranging from the individual farmer's field to the global earth system. In order to underpin his work, Des established an intensive programme of field investigations through a network of long-term measuring sites in the local Exe basin, which operated for over 30 years. He also developed complementary high quality laboratory facilities in the Geography Department at the University of Exeter for studying sediment properties, including one of the best-equipped gamma spectrometry laboratories in the world. However, he was also keen to extend the canvas on which he worked beyond the local to the national and the international. Such activity has seen him conducting soil loss studies across several areas of Britain and investigating the delivery of sediment through larger river systems including the River Severn and the Yorkshire Ouse. He has also carried out much work overseas in North, East and Southern Africa,

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Section: Themesmentioning

confidence: 99%

Understanding sediment in river systems—Building on a 50‐year contribution

Webb

Foster

McNamara

2023

Hydrological Processes

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“…Sedimentation in a watershed is influenced by several factors including the amount and intensity of rainfall, erosion that occurs, soil type, topography, rock formations, sediment types, and river channel characteristics (Gunawan et al, 2019). The effect of climate change, especially rainfall, causes erosion and sedimentation in a watershed, which is a very important assessment in relation to sediment loads and sediment yields (Bannatyne et al, 2022;Theron et al, 2021). High amounts of erosion also contribute to high sediment loads (Gwapedza et al, 2021), and also have negative effects on land and livelihoods, aquatic ecosystems, water availability, and power generation infrastructure (Bannatyne et al, 2022;Vercruysse et al, 2017).…”

Section: Sediment Loadmentioning

confidence: 99%

“…The effect of climate change, especially rainfall, causes erosion and sedimentation in a watershed, which is a very important assessment in relation to sediment loads and sediment yields (Bannatyne et al, 2022;Theron et al, 2021). High amounts of erosion also contribute to high sediment loads (Gwapedza et al, 2021), and also have negative effects on land and livelihoods, aquatic ecosystems, water availability, and power generation infrastructure (Bannatyne et al, 2022;Vercruysse et al, 2017). The contributions of climate change and human activities have a very significant effect on increasing erosion, surface runoff, and sediment in a watershed from year to year (Chen et al, 2022;Golosov and Tsyplenkov, 2021).…”

Section: Sediment Loadmentioning

confidence: 99%

Evaluation of Wanggu Watershed Carrying Capacity on Water System Indicators in Southeast Sulawesi, Indonesia

2023

indones. j. env. man. sus.

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The water system or hydrological indicators determine the good and bad of a watershed’s carrying capacity. The hydrological indicators include discharge fluctuations, annual flow coefficient, sediment load, flood frequency, and water use index. The purpose of this study was to evaluate the carrying capacity of the Wanggu watershed based on hydrological indicators. The method used is the score and weight method for all hydrological indicator data in accordance with the watershed evaluation guidelines for hydrological indicators. The research data is sourced from primary data and secondary data. Primary data comes from direct observation, while secondary data comes from agencies related to this research. Data analysis using Microsoft Excel in monthly and annual data analysis by producing tables and figures. The results of this study indicate that fluctuations in discharge or the regime coefficient of the Wanggu River Basin are 96.45 which are classified as high, as well as erosion and surface runoff, namely sediment load conditions of 19.73 which are also included in the high category. While the value of the annual flow coefficient is 0.32, the average frequency of flooding every year occurs once in two years and the water use index is 0.69. The three parameters are categorized as being in the middle class. From the accumulated weights and scores of all water system indicator parameters, a value of 111.25 is included in the bad class category. So the Wanggu watershed has a poor carrying capacity value from the water management indicator.

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