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Tomazoni, Julio Caetano. "O processo erosivo e o material hidro-transportado na bacia hidrográfica do rio Pinhal no Sudoeste do Paraná." Universidade Federal do Paraná, 1998. http://repositorio.utfpr.edu.br/jspui/handle/1/936.
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Rushforth, Peter John. "The erosion and transport of sewer sediment mixtures." Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366118.
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Dun, Shuhui. "Adapting WEPP (Water Erosion Prediction Project) for forest watershed erosion modeling." Online access for everyone, 2006. http://www.dissertations.wsu.edu/Thesis/Summer2006/S%5FDun%5F073106.pdf.
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Christie, Malcolm. "The in-situ erosion of intertidal muds." Thesis, University of Plymouth, 1997. http://hdl.handle.net/10026.1/2103.
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Intertidal mudflats can experience rapid morphological changes, and are both sources and sinks of fine cohesive sediment within an estuary. Successful environmental management of these regions depends upon in-situ measurements, which help specify the interactions between the active processes and so allow the development of predictive models that the management practices require. The Profiles of Sediment Transport system (POST) has been developed in order to make high frequency measurements of velocity and suspended sediment concentration profiles in very shallow water (i.e. when depth, h < 1.0 m). Electromagnetic current meters and optical sensors were miniaturised to allow measurements within a few centimetres of the sea bed and provide fine scale resolution of vertical profiles. Two in-situ experiments, located in the Severn and Humber estuaries, examined the response of a mudflat to changing environmental factors, and in particular, studied the influence of local waves and tidal currents in very shallow water of depth (h)< 1.0 m. A value of 0.127 Nmˉ²was considered to be representative of the critical erosion shear stress (Tint) at Portishead, while at Skeffling τait was estimated to be about 0.31 Nmˉ². The effects of wave and current action were quantified and expressions were used to describe the relationships between velocity, bed shear stress and concentration. An expression relating near bed concentration to mean velocity (U ) at Skeffling was simply: Concentration (gLˉ¹) = 1.908 U + 0.193 when h< 1.0 m. R² = 0.730 The physical processes causing erosion and deposition across two mudflats have been identified, and the predictive expressions are considered to provide first order approximations for sediment concentrations and transport behaviour, for similar conditions at other North European sites. The results showed that the shallow water periods at the beginning and end of tidal coverage were extremely important in determining the surface character of the mudflat, and any erosion was most marked at these times. Small waves can be crucial to erosion because of their large contribution to the bed shear stresses in shallow water. Ignoring biological and chemical variables (both of which can control of erosion), it is proposed that for typical temperate environmental conditions, some form of mudflat erosion is likely when h< 1.0 m, and either the significant wave height (H2) is greater than 0.25 m, or the near bed velocities exceed 0.2 msˉ¹.
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Khalid, M. (Muhammad). "Erosion of organic sediments and modelling of sediment transport in peat drainage area." Master's thesis, University of Oulu, 2015. http://urn.fi/URN:NBN:fi:oulu-201502131085.
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Detailed knowledge from physical properties of sediment such as erosion and settling velocity are crucial for modelling as well as for water protection planning and management. The main purpose of this research was to determine the critical shear stress (τcr) and settling velocity of the organic sediments in different peatland drainage areas and headwaters in Finland. Further, KINEROS2 erosion model was applied to peatland forestry and peat extraction conditions to simulate runoff hydrograph and suspended solid yield from two experimental catchments. To determine mean τcr and settling velocity totally 119 undisturbed sediment samples were taken from the natural streams, ditches and brooks across Finland. The samples covered main peatland uses, peatland forestry and peat extraction sites. Furthermore, to determine the effect of peat soil properties on sediment erosion and settling, peat soil samples were collected from 9 peat extraction areas. These samples were used to prepare sediments in laboratory setting. Cohesive strength meter (CSM) was applied to measure the τcr and settling velocity in laboratory and in-situ conditions. Results were compared against physical properties of sediment or peat soils and further compared against different peatland uses.
The critical shear stress over all samples ranged from 0.0057 to 0.428 N m⁻² (mean value 0.116 ± 0.07 N m⁻²). τcr in peatland forestry ditches ranged from 0.0057 to 0.428 N m⁻² (mean value 0.07 ± 0.1 N m⁻²), and in peat extraction sites from 0.006 to 0.421 N m⁻² (mean value 0.12 ± 0.06 N m⁻²). Similarly, τcr of artificially prepared samples from peat extraction area ranged from 0.012 to 0.112 N m⁻² (mean value of 0.059 ± 0.028 N m⁻²). At Koivupuro peatland forestry site, measurements were done in laboratory as well as in-situ. Results gave slightly different values; in-situ τcr ranged from 0.005 to 0.305 N m⁻² with the mean value of 0.03 ± 0.075 N m⁻², and the laboratory results ranged from 0.008 to 0.310 N m⁻² with the mean value of 0.125 ± 0.06 N m⁻². Degree of humification (DOH) and dry bulk density were found to be positively related to critical shear stress.
The settling velocity results for Koivupuro catchment ranged from 0.0004 to 0.131 m h⁻¹ (mean value 0.016 ± 0.034 m h⁻¹) and 0.0004 to 0.456 m h⁻¹ (mean value 0.144 ± 0.134 m h⁻¹) for other organic peat samples. Degree of humification (DOH) and settling velocity showed no correlation while dry density of settled sediment was found inversely proportional to settling velocity. This study showed that CSM can be used to determine τcr and settling velocity from organic sediment samples. Results can be applied in modelling purposes, and in dimensioning of water protection methods such as settling basins.
Eleven rainfall-runoff events from two different catchments were selected for the study to simulate runoff hydrographs and associated sediment yields in different conditions. When properly calibrated for each event, KINEROS2 model produced sufficient estimations of runoff hydrographs for peatland forestry and peat extraction sites but failed to produce reliable estimations of suspended sediment yields. Moreover, unrealistic parameter values sometimes had to be used in model calibration due to model inability to simulate groundwater or soil water response in ditch flow. Thus the model could not be validated for varying initial conditions and rainfall events.
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Anderson, Robert Stewart. "Sediment transport by wind : saltation, suspension, erosion and ripples /." Thesis, Connect to this title online; UW restricted, 1986. http://hdl.handle.net/1773/6703.
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Greener, Mark. "Incorporating sediment transport competence into existing soil erosion models." Thesis, University of Leicester, 2001. http://hdl.handle.net/2381/30393.
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Competence in this thesis is defined as a limit to the maximum size of particle that can be detached and transported in rain-impacted interrill overland flow. Although there is evidence to show that there is some form of size selectivity occurring in rain-impacted interrill overland flow (i.e. competence), most modern soil erosion models do not simulate competence as a limit to erosion. Existing competence equations were not developed in the shallow rain-impacted flow that occurs in interrill areas. A new competence equation was developed in the laboratory under rain-impacted flow. The new competence equation was used to form the basis of an algorithm designed to incorporate competence in existing soil erosion models. SMODERP was chosen as a suitable model used to assess the effect of competence on rain-impacted interrill erosion. The code of SMODERP was studied and the variables required by the competence algorithm located. The competence algorithm required an input of erosion per model time step, SMODERP did not provided this and had to be modified to yield erosion per time step. The new versions of SMODERP were tested on plot scale data. The effect of competence was found to be large, reducing erosion by a factor of between 3 and 65 times. Competence had the greatest effect on erosion on lower rainfall intensity events. The competence algorithm assumed that there was no spatial or temporal change in surface texture. This assumption was investigated at the field, plot and laboratory scale. There was found to be some temporal and spatial variation in surface texture but only at the laboratory scale and to a lesser extent at the plot scale. This suggests that at smaller scales there is a spatial and temporal variation in surface texture but this variation does not occur at larger scales where other processes may dominate. This thesis has identified a limit (competence) not simulated in most soil erosion models and provided an approach to including this limit into soil erosion models. The effects of competence was shown to be large but more work is need in this area to more fully assess the effect of incorporating sediment transport competence into existing soil erosion models.
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Tattersall, Graham Richard. "Tamar estuary sediment dynamics." Thesis, Bangor University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341218.
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Whitcombe, Leslie John. "Sediment transport processes, with particular reference to Hayling Island." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294696.
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Lu, Xixi. "Soil erosion and sediment yield in the Upper Yangtze, China." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4645/.
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Soil erosion and sedimentation are key environmental problems in the Upper Yangtze because of the ongoing Three Gorges Project (TGP), the largest hydro-power project in the world. There is growing concern about the rapid increase of soil erosion over the last few decades and its consequence for potential sedimentation in the reservoir. The study aims to examine controls on the spatial and temporal distributions of sediment transfer within the Upper Yangtze and the hydrological consequences of land use changes, using varied approaches at different catchment scales. First, soil erosion and sedimentation are examined using the radionuclide Cs-137 as a tracer within a small reservoir catchment in the Three Gorges Area. The results indicates that soil erosion on sloping arable land and the rates of reservoir sedimentation have been severe during the past 40 years, mainly due to cultivation on steep slopes. Changes in reservoir sedimentation rates are mainly attributed to land use changes. The suitability of the Cs-137 techniques for investigating soil erosion and sedimentation in intensely cultivated subtropical environments is also considered. The use of the technique for erosion investigation may have limitations due to the abundance of coarse soil textures, uncertainty about fallout deposition rates and the high incidence of human disturbance, but the technique shows promising perspectives for sedimentation investigation since a few dating horizons might be identified. Second, sediment and runoff measurement data for around 30 years from over 250 hydrological stations within the Upper Yangtze have been examined within a GIS framework. The dataset has been integrated with catchment characteristics derived from a variety of environmental datasets and manipulated with Arc/Info GIS. The analysis of the sediment load data has permitted identification of the most important locations of sediment sources, the shifting pattern of source areas in relation to land use change and sub-catchments exhibiting trending sediment yields corrected for hydrological variability. The study demonstrates the importance of scale dependency of sediment yield in both the identification of temporal change and the modelling of relationships between sediment yield and environmental variables, suggesting that the treatment of the scale problem is crucial for temporal-spatial studies of sediment yield.
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Schmied, Lauren. "Cross shore sediment transport and beach profile change." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 297 p, 2006. http://proquest.umi.com/pqdweb?did=1203570311&sid=4&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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Banis, Y. Norouzi. "Data provision and parameter evaluation for erosion modelling." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242445.
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Jones, Katie Elizabeth. "Contemporary sediment delivery ratios for small catchments subject to shallow rainfall triggered earthflows in the Waipaoa catchment, North Island, New Zealand : a thesis submitted to the Victoria University of Wellington as partial fulfilment of the requirements for the degree of Master of Science with Honours in Physical Geography /." ResearchArchive@Victoria e-thesis, 2009. http://hdl.handle.net/10063/1197.
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Cambazoglu, Mustafa Kemal. "Numerical modeling of cross-shore sediment transport and sandbar migration." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31744.
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Thesis (Ph.D)--Civil and Environmental Engineering, Georgia Institute of Technology, 2010.Committee Chair: Kevin A. Haas; Committee Member: Emanuele Di Lorenzo; Committee Member: Hermann M. Fritz; Committee Member: Paul A. Work; Committee Member: Terry W. Sturm. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Chan-Braun, Clemens [Verfasser], and M. [Akademischer Betreuer] Uhlmann. "Turbulent open channel flow, sediment erosion and sediment transport / Clemens Chan-Braun ; Betreuer: M. Uhlmann." Karlsruhe : KIT Scientific Publishing, 2012. http://d-nb.info/1184492344/34.
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Rhoades, Erica L. "Quantifying bank erosion on the South River and its importance in assessing mercury contamination." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 82 p, 2008. http://proquest.umi.com/pqdweb?did=1597631421&sid=7&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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Skipworth, Peter John. "The erosion and transport of cohesive-like sediment beds in sewers." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245698.
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Marttila, H. (Hannu). "Managing erosion, sediment transport and water quality in drained peatland catchments." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514293306.
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Peatland drainage changes catchment conditions and increases the transport of suspended solids (SS) and nutrients. New knowledge and management methods are needed to reduce SS loading from these areas. This thesis examines sediment delivery and erosion processes in a number of peatland drainage areas and catchments in order to determine the effects of drainage on sediment and erosion dynamics and mechanics. Results from studies performed in peat mining, peatland forestry and disturbed headwater catchments in Finland are presented and potential sediment load management methods are discussed for drainage areas and headwater brooks. Particular attention is devoted to erosion of organic peat, sediment transport and methods to reduce the impacts of peatland drainage in boreal headwaters.
This thesis consists of six articles. The first and second papers focus on the erosion and sediment transport processes at peat harvesting and peatland forestry drainage networks. The results indicate that in-channel processes are important in drained peatland, since the drainage network often constitutes temporary inter-storm storage for eroding and transporting material. Sediment properties determine the bed sediment erosion sensitivity, as fluffy organic peat sediment consolidates over time. As flashiness and peak runoff control sediment entrainment and transport from drained peatland areas, water quality management should include peak runoff management.
The third, fourth and fifth papers studies use and application of peak runoff control (PRC) method to the peat harvesting and peatland forestry conditions for water protection. Results indicate that effective water quality management in drained peatland areas can be achieved using this method. Installation of the PRC structures is a useful and cost-effective way of storing storm runoff waters temporarily in the ditch system and providing a retention time for eroded sediment to settle to the ditch bed and drainage network. The main effect of the PRC is on SS and SS-bound nutrients.
The sixth paper is concentrated to test new restoration structure to be used in degraded headwater brooks. The results show that addition of woody restoration structures to the channel is effective and simple sediment management methods in headwater areas.
New information provided in this thesis on sediment erosion and transport processes in drained peatland areas can help to improve water quality control in these areas. In-channel processes are important for both peatland uses, since the drainage network often constitutes temporary inter-storm storage for eroding and transporting material. Therefore, controlling these processes is a key to effective water quality management, which can be achieved using the PRC method in drainage areas or by utilisation of natural fluvial processes in natural channels downstream.
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Nairn, Robert Bruce. "Prediction of cross-shore sediment transport and beach profile evolution." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46463.
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Figlus, Jens. "Seasonal and yearly profile changes of Delaware beaches." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 198 p, 2007. http://proquest.umi.com/pqdlink?did=1253510781&Fmt=7&clientId=79356&RQT=309&VName=PQD.
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Al-Smadi, Mohammad Ahmed. "Areal Modeling of Erosion for Environmental Nonpoint Applications (AMEENA)." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/26754.
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Erosion and sediment delivery from upland areas to waterbodies is a major problem impacting water quality in the United States and elsewhere. Measures to reduce these impacts are either targeted at reducing erosion on-site or at reducing delivery of sediment to waterbodies. AMEENA (Areal Modeling of Erosion for Environmental Nonpoint Applications) is a spatially distributed model that estimates erosion and deposition on a watershed scale by predicting erosion and transport over the landscape surface. Erosion is predicted based on the Revised Universal Soil Loss Equation (RUSLE), and sediment transport capacity is estimated as a function of upslope flow volume, local gradient, and land use. Gross erosion is routed to edge-of-stream with a routing algorithm that iteratively compares available sediment with transport capacity on a cell by cell basis from ridge cells to stream cells. The model is implemented completely within a raster GIS to facilitate use of the model as a tool to readily evaluate impact of land use practices on sediment delivery to streams.
AMEENA was validated using field data of net erosion and sediment deposition from three field studies. AMEENA predicted the spatial distribution of net erosion and deposition better than WaTEM/SEDEM which is a distributed parameter erosion model based on a similar modeling approach. AMEENA's suitability to simulate the impact of management practices such as filter strips and critical area planting was evaluated on plot (profile) scale and catchment scale simulations. Results of plot scale simulations were intuitive and the model proved more reasonable for these scenarios than did RUSLE2 and WEPP. The catchment scale study highlighted features of AMEENA that are not available in RUSLE2 and WEPP in terms of identifying erosion “hot spots” and the ability to utilize the explicit sediment flow path identification in locating best placement of off-site sediment control measures. Since AMEENA does not account for in-stream erosion processes, it is not suitable for simulating areas dominated by channel or gully erosion.Ph. D.
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Hamons, Gregory W. "Modeling sediment movement in forested watersheds using hill-slope attributes." Morgantown, W. Va. : [West Virginia University Libraries], 2007. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5409.
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Thesis (M.S.)--West Virginia University, 2007.Title from document title page. Document formatted into pages; contains viii, 122 p. : ill., maps. Includes abstract. Includes bibliographical references (p. 78-85).
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Ramos-Scharrón, Carlos E. "Measuring and predicting erosion and sediment yields on St. John, U.S. Virgin Islands." Access citation, abstract and download form; downloadable file 11.78 Mb, 2004. http://wwwlib.umi.com/dissertations/fullcit/3131697.
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Gällstedt, Frida. "Transport av förorenat sediment i Eskilstunaån." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392763.
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Eskilstuna har sedan länge varit en industristad vilket har inneburit utsläpp av främst metallföroreningar men även organiska ämnen till Eskilstunaån. Provtagningar har vid upprepade tillfällen gjorts och det har visats att sedimentet i ån innehåller höga halter av förorenande ämnen. Sediment förorenat av miljögifter utgör en risk för både miljön och människors hälsa. Beroende på vilka förhållanden som råder i vattendraget skiljer sig sedimentationshastigheten åt, dels mellan olika vattendrag men den kan också variera inom recipienten vilket gör att det kan finnas särskilda områden där sediment och föroreningar ackumuleras. Det kan vara av vikt att identifiera dessa platser för att minska risken för återsuspension av sedimentet, som sedan kan transporteras vidare nedströms, samt för eventuella framtida åtgärder. I examensarbetet undersöktes föroreningsspridningen i Eskilstunaån och var ackumulationsbottnar kan förväntas ligga. En sedimenttransportmodell byggdes upp i programmet HEC-RAS med åns batymetri som utgångspunkt. Resultaten från modelleringar analyserades och tolkades med det geografiska informationssystemet ArcGIS och jämfördes med bottens hårdhet samt tidigare utförda sedimentprovtagningar. Sedimenttransportmodelleringen tyder på att området med mest ackumulation finns i Eskilstunaån där den passerar centrum och där åns botten är relativt mjuk. De högsta halterna för majoriteten av de undersökta metallföroreningarna påträffades trots detta längre nedströms där botten, sett till hela ån, inte var utmärkande mjuk men i jämförelse med närliggande platser var den däremot mjuk och relativt djup. En slutsats som kan dras ur detta är att vid lokalisering av ackumulationsbottnar bör vattendragets batymetri analyseras i kombination med bottens hårdhet och det bör göras på kortare sträckor.Eskilstuna has been an industrial town for a long time which has caused emissions of mostly metal contaminants but also organic substances in to the Eskilstuna river. Samples from the sediment shows high content of some pollutants. Contaminated sediments can cause environmental and health hazards. Therefore, it is of importance to locate accumulation areas in the riverbed to avoid resuspension of the sediment, for preventing further transport downstream, and it may be of use if remediation measures becomes necessary. In this thesis the distribution of metal contaminants in the Eskilstuna river were investigated and accumulation areas located. A sediment transport model, based on the bathymetry, was implemented in the river analysis system HEC-RAS. The results from the model were later analyzed in the geographical information system ArcGIS and compared to the riverbeds hardness and the sediment samples. The sediment transport model showed an accumulation area in the river where it flows through the city center and the riverbed is relatively soft. The highest concentrations of most pollutants were found further downstream where the riverbed has a higher relative hardness. However, if only the neighbouring areas are compared to this locations the accumulation area is soft with a relative large depth. As a conclusion, one may have to take both bathymetry and the riverbeds hardness into account when locating accumulation areas.
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Kularatne, Kottabogoda Angidigedera Samantha Rangajeewa. "Factors influencing sediment re-suspension and cross-shore suspended sediment flux in the frequency domain." University of Western Australia. School of Environmental Systems Engineering, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0005.
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[Truncated abstract] With rapidly increasing population densities along coastlines and rising global sea levels, coastal protection has become a major concern for coastal communities. Predicting sediment transport in nearshore regions, however, is one of the most challenging tasks faced by coastal researchers in designing coastal structures or beach nourishment schemes. Although nearshore sediment transport mainly occurs in the longshore direction, cross-shore sediment transport is crucial in determining the shoreline evolution and beach morphology . . . This study investigated the factors influencing sediment re-suspension and cross-shore suspended sediment flux in the frequency domain through a series of field measurements conducted at several different locations and a numerical model. Only oscillatory flow components were examined and the mean flow components were not considered. Although many different factors such as cross-shore location with respect to breaker line, significant wave height to water depth ratio (Hs/h), normalised horizontal velocity skewness (
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Khaba, Liphapang. "Modelling soil erosion and sediment transport of the Nqoe River Catchment at 'Muela." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/55289/.
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This study assesses the dynamics of soil loss rates of the Nqoe River Catchment. The assessment is made by numerical modeling of the stream water levels and flow, as well as the suspended and bed-load sediment. Literature states that accelerated soil erosion is a problem in the catchment, resulting in high rates of sedimentation of the 'Muela Reservoir. This erosion is blamed on the over-stocking of rangelands which leads to overgrazing and development of bare soil cover. As part of literature review, to better understand existing methods for estimation of soil erosion and stream sediment transport, thirteen (13) overland soil erosion equations and forty-two (42) channel erosion and sediment transport equations were coded in over eighteen thousand (18,000) lines of code. Analysis of these models informed the runoff model developed using the Gridded Surface Subsurface Hydrologic Analysis model (GSSHA). The model was calibrated and validated for the Nqoe catchment, and its capability to adequately simulate in this data-sparse geographic region was assessed. It was found that the GSSHA model is robust in its simulations of both stream hydrographs and catchment soil loss. The value of the global gridded satellite rainfall data from the NASA GES DISC proved to be useful and accurate in running the GSSHA model for the data-sparse Nqoe catchment in Lesotho. This data was particularly useful while running land management scenarios for assessment of management activities (reforestation, urbanisation, cropland fallowing and rangeland stocking density) that could best serve to reduce soil erosion in the Nqoe catchment. It was found that reforestation and crop-land fallowing could be some of the most beneficial management strategies for reduction of catchment soil loss.
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Ma, Ning. "Mathematical Modelling of Water Soil Erosion and Sediment Yield in Large Catchments." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/575.
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Srisuwan, Chatchawin. "Size-selective sediment transport and cross-shore profile evolution in the nearshore zone." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45892.
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Cross-shore bathymetric evolution in the nearshore zone often leads to threatening consequences such as beach erosion and shoreline retreat that concern the coastal community. A new, comprehensive cross-shore morphodynamic model was developed that can be used to describe and predict these phenomena. The study included both physical and numerical models that were designed to focus on the influence of sediment size characteristics on the cross-shore sediment transport process. For a profile equilibrium timescale, three types of beach profiles with different sediment mixtures were simulated in a small-scale, random-wave flume laboratory using erosive, storm, and accretive wave conditions. Dynamic relationships between the sediment grain sorting and beach profile changes were found to be evident as size-graded sediment fractions tended to relocate to different energetic zones along the cross-shore profiles. Existing phase-averaged wave and circulation models were utilized together with several new intra-wave modules for predicting important hydrodynamic parameters that were validated using the experimental data. A novel, multi-size sediment transport model was formulated to compute individual transport rates of size-graded sediment fractions while accounting for their interaction and non-linear size dependencies. The model was coupled with a new grain sorting model that resolves cross-shore grain sorting and vertical grain lamination. Compared to a traditional modeling approach, the new comprehensive model proved to offer superior modeling accuracy for both profile evolution and sediment grain size change. The use of the model is most advantageous for a condition with intensive grain sorting, a common scenario on a natural beach profile. Equilibrium beach profile is also better simulated by the model as size-graded fractions are predicted to relocate to different zones where they could withstand local hydrodynamics. Other new components that also help improve the modeling capability include the terms for wave-breaking and bed-slope effects, wave-crest sediment flux, and acceleration-induced bottom-shear stress. Besides superior profile modeling accuracy, sediment size characteristics and their spatial and temporal variations are also a useful set of information provided by the new model.
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Mansoori, Amir Reza. "Study on Flow and Sediment Transport around Series of Spur Dikes with Different Head Shape." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/192160.
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Shaw, Susan Calder. "Bedload transport of mixed-sized sediments by wind /." Thesis, Connect to this title online; UW restricted, 1994. http://hdl.handle.net/1773/6742.
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Sadiq, Aftab. "Clear-water scour around bridge abutments in compound channels." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/19308.
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Loganbill, Andrew Wood. "Post-fire Response of Little Creek Watershed: Evaluation of Change in Sediment Production and Suspended Sediment Transport." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1028.
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The Little Creek watershed was assessed to identify changes in event-based suspended sediment export and determine the factors contributing to sediment production the first year following the Lockheed Fire in 2009. The amount and volume of near-stream sediment sources were found to decrease, while an increase in hillslope sediment production was documented. High intensity, short duration rainfall (up to 87 mm/hr for 10 minute duration) initiated extensive rilling and minor channel-derived debris torrents originating from the upper south facing slopes. Rainfall simulations, hillslope erosion plots, and soil infiltration tests indicated that fire produced soil water repellency, the lack of ground cover, steep slopes, and high soil burn severity were the most influential factors contributing to hillslope erosion. Contrary to results reported in other western U.S. studies, regression analyses determined that the effect of fire significantly decreased suspended sediment concentrations with higher flows at North Fork and Upper North Fork monitoring stations. The effect of the fire did not produce increases in stormflow volumes and event sediment load, likely due to the fact near-stream sediment contribution was minimal and the majority of hillslope-derived sediment sources were not hydrologically connected. This study provides valuable information for landowners and land managers to understand how a coastal redwood dominated watershed responds to wildfire and prepare post-fire mitigation efforts following future wildfires.
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Giffin, Joy M. "Sediment production, storage, and transport processes studied in two semi-arid basins and in a recently burned region of the Mojave National Preserve." abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1438923.
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Conroy, William John. "A coupled upland-erosion, instream hydrodynamic-sediment transport model for assessing primary impacts of forest management practices on sediment yield and delivery." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Dissertations/Spring2005/w%5Fconroy%5F041505.pdf.
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Crumbley, Tyler Autry. "Modeling Soil Erosion and Sediment Transport from Fires in Forested Watersheds of the South Carolina Piedmont." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-06252007-113339/.
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Forested watersheds in the Southeastern U.S. provide high quality water vital to ecosystem integrity and downstream aquatic resources. Excessive sediment from human activities in forested watersheds is of concern to responsible land managers. Prescribed fire is a common treatment applied to Southeastern Piedmont forests and is becoming increasingly important under the threat of higher fuel loads, and higher intensity storm events from changing land uses and climate. Several studies have been conducted to evaluate the impacts of fire on sedimentation processes with conflicting conclusions. Measuring the amount of runoff and erosion from fire-induced forested watersheds is difficult due to the high variability inherent in these systems. Erosion simulation models assist in relieving the time and resources consumed measuring these effects. The process-based Water Erosion Prediction Project (GeoWEPP) is widely used in the Western U.S. to predict erosion resulting from forest fires, but has yet to be tested in Southeastern Piedmont settings. The objective of this study was to evaluate the effectiveness of the GeoWEPP model in predicting sediment amounts from low-, moderate- and high-intensity forest fires on pine stands of the Sumter National Forest in the piedmont region of South Carolina. GeoWEPP simulation results were compared to observed sediment production from two ongoing prescribed burn studies in the Enoree and Long Cane Ranger Districts. Erosion measurements were conducted using 48 silt fences placed on hillslopes within 22 x 22 m plots. The measurements were collected biennially following low- and high-intensity prescribed burnings of the forested plots. The annual observed erosion amounts averaged 0.014 and 0.022-kg/m (width) for the Enoree and Long Cane sites respectively. Modeling results from the simulations of the same sites averaged 1.94-kg/m width of fence and 0.55-kg/m (width) annually. The model largely over predicted the amounts of erosion at these low levels. However, the average observed erosion amounts and average GeoWEPP predictions of 0.01 t/ac/yr were well below the tolerable soil loss value (T-value) of 0.41 t/ac/yr during the unburned, low-, and high-intensity forest fire conditions of the treatments. Predicted erosion exceeded this value only for high-intensity fires followed by high-intensity storm events (>20-yr return periods). These results suggest that low-intensity fires may not elevate sediment loading above tolerable rates; however, higher-severity fires can cause soil erosion and sediment loading at levels of concern in water quality degradation. Land topography, fire intensity and soil surface texture type are key variables to predicting soil erosion and runoff. We conclude that this model may be a useful tool to land managers for evaluating and predicting the effects of fire on erosion following forest fires. This study is the first to evaluate the effectiveness of the GeoWEPP model in predicting runoff and sedimentation in Southeastern piedmont watersheds. From this initial testing, recommendations were made to improve the model for applications in the Southeast.
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Gran, Karen Bobbitt. "Fluvial recovery following basin-wide sediment loading at Mount Pinatubo, Philippines /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/6717.
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Teran, Cobo Pablo. "Model simulations of bar evolution on a large scale laboratory beach." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 150 p, 2007. http://proquest.umi.com/pqdweb?did=1338884401&sid=15&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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McGuire, Luke A., Jason W. Kean, Dennis M. Staley, Francis K. Rengers, and Thad A. Wasklewicz. "Constraining the relative importance of raindrop- and flow-driven sediment transport mechanisms in postwildfire environments and implications for recovery time scales." AMER GEOPHYSICAL UNION, 2016. http://hdl.handle.net/10150/622763.
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Mountain watersheds recently burned by wildfire often experience greater amounts of runoff and increased rates of sediment transport relative to similar unburned areas. Given the sedimentation and debris flow threats caused by increases in erosion, more work is needed to better understand the physical mechanisms responsible for the observed increase in sediment transport in burned environments and the time scale over which a heightened geomorphic response can be expected. In this study, we quantified the relative importance of different hillslope erosion mechanisms during two postwildfire rainstorms at a drainage basin in Southern California by combining terrestrial laser scanner-derived maps of topographic change, field measurements, and numerical modeling of overland flow and sediment transport. Numerous debris flows were initiated by runoff at our study area during a long-duration storm of relatively modest intensity. Despite the presence of a well-developed rill network, numerical model results suggest that the majority of eroded hillslope sediment during this long-duration rainstorm was transported by raindrop-induced sediment transport processes, highlighting the importance of raindrop-driven processes in supplying channels with potential debris flow material. We also used the numerical model to explore relationships between postwildfire storm characteristics, vegetation cover, soil infiltration capacity, and the total volume of eroded sediment from a synthetic hillslope for different end-member erosion regimes. This study adds to our understanding of sediment transport in steep, postwildfire landscapes and shows how data from field monitoring can be combined with numerical modeling of sediment transport to isolate the processes leading to increased erosion in burned areas.
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Kreider, Tyler A. "Rare Earth Elements as a Tracer to Understand Sediment Fate and Transport in Small Streams." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32678.
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Sediment is a major source of water quality impairment in streams, rivers and lakes in
the US. However, sediment fate and transport in small streams is poorly understood. Previous
attempts to characterize sediment transport often insufficiently represented the physical and
chemical sediment properties and lacked spatial and/or temporal resolution. Therefore, there is
a need to develop better sediment tracers, for which rare earth element (REE)-labeled sediment
is examined as an alternative. The objectives of this study were to: 1) assess the adsorption of
REEs to natural soils and ensure their reliability as a tracer in a fluvial environment; and
2) evaluate the efficacy of utilizing REE-labeled sediment to quantify fate and transport in a
second-order stream during a series of storm events.
Two natural stream bank soils from Stroubles Creek in Virginia were labeled with the
REEs lanthanum and ytterbium. The REEs adsorbed equally to both soils and had minimal
desorption after several washes with stream water. This suggests that REEs form a dependable
natural sediment tracer and sufficiently label natural soils for use in a sediment tracing study.
During two storm events, two unique REE tracers were injected into Stroubles Creek.
These tracers were detected at varying discharges and sediment loads in bed and suspended
sediment samples up to 875 m downstream. REE tracers proved to be an ideal tracer for
detecting sediment fate and transport in a small stream during a series of storm events and hold
great potential for evaluating best management practices and sediment transport models.Master of Science
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Seker-Elci, Sebnem. "Modeling of Hydrodynamic Circulation and Cohesive Sediment Transport and Prediction of Shoreline Erosion in Hartwell Lake, SC/GA." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5081.
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This dissertation addresses hydrodynamics, sediment transport and shoreline erosion within the main pool of Hartwell Lake, a U.S. Army Corps of Engineers reservoir built on the Savannah River, between Anderson, South Carolina, and Hartwell, Georgia, USA. A U.S. Environmental Protection Agency (EPA) Superfund site is located on a tributary of Hartwell Lake because of high concentrations of polychlorinated biphenyls (PCBs) in the lake sediments. PCBs are hydrophobic and typically bond to fine-grained sediments, such as silts and clays. The primary goal of the study was to document, through field measurements, and model, using a 3-D numerical model of flow and sediment transport, the fate of sediments within the main pool of Hartwell Lake.
To document forty years of sedimentation within the reservoir, bathymetric survey data were collected in Hartwell Lake during the period, February 10-14, 2003. The bathymetric surveys revealed that deposition was, in places, up to two meters thickness in forty years. During the field campaign, flow velocity measurements were made primarily to provide a check on the magnitude of the velocities predicted by the numerical model used in the study. Shoreline surveys provided data for the modeling procedure for shoreline change. This in turn facilitated specification of the sediment flux into the domain via shoreline erosion.
Hartwell Lake is located near the southern terminus of the Appalachian mountain chain in the Piedmont region. Sediments contain high fractions of silt and clay. Hartwell Lake has a shoreline length of 1548 km, and erosion of lake shorelines has been a significant problem for many homeowners. As of September 2002, there were 1123 permitted riprap installations, and 393 permitted retaining walls, for a total of 1516 erosion control structures along the lakeshores (source: USACE Hartwell Office), an indication of the magnitude of the erosion problem.
To quantify the erosion rate of the shorelines, an approach that relates erosion rates to wind wave forces was developed. A simplified representation of the shape of beach profiles is employed. Historical shoreline change rates were quantified by comparing available digital aerial photos taken in different years, and the erosion prediction model was calibrated using these computed erosion rates.
Sediments derived from shoreline erosion were introduced to the model as an additional source along the model boundary, and the fate of the eroding sediments was investigated via numerical modeling.
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Thierumaran, Yoganathan. "Development of techniques to evaluate the potential for flooding, erosion, and sediment transport along the upper Walker River." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1472984.
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Carter, Samantha Cassie. "Improving our understanding of the marine barium cycle and constructing a new archive of erosion and sediment transport." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1593602009469204.
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Chenault, Carla D. "Understanding long-term beach width change in the Oceanside littoral cell, California." Diss., Digital Dissertations Database. Restricted to UC campuses, 2007. http://uclibs.org/PID/11984.
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Zhao, Ruoshu. "Comparison of Beach Changes Induced by Two Hurricanes along the Coast of West-Central Florida." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7388.
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The beach profiles pre-and post-the Hurricane Hermine (2016) and Irma (2017) along the Sand Key barrier island were collected to quantify longshore variations in storm induced beach changes as well as to compare the beach changes caused by hydrodynamic conditions of the two different hurricanes.
Cross-shore beach profile are examined in 4 sections including dune field, dry beach, sand bar and whole beach to calculate beach change. The volume change for each section and shoreline contour change before and post the hurricane was computed. Hydrodynamic conditions were obtained from adjacent NOAA’s tide and wave gauges.
Both hurricanes generated high offshore waves, with Hurricane Hermine generated waves mostly from southwest, and Irma generated waves dominantly from northeast. Hurricane Hermine generated a storm surge of up to 1 m. While hurricane Irma generated negative surge of -1.1 m.
Several beach profile parameters such as the foreshore slope, as well as volume changes of dune field, dry beach and sand bar induced by the two hurricanes were computed. Under both storms, the foreshore slope became steeper after the storm north of the headland, while the foreshore slope became gentler south of the headland. Storm surge plays an important role in inducing beach erosion. Hurricane Hermine with 1 m surge caused significant dune erosion in terms of dune volume loss and dune line retreat. On the other hand, hurricane Irma with negative surge only caused minor dune erosion. Sand bar moved seaward during both hurricanes, with Irma induced a much greater offshore movement than that of Hermine. In addition, the sand bar height decreased significantly during Irma. In contrast, during Hermine the sand bar height remained largely similar before and after the storm.
Large alongshore variations in beach erosion was observed during both hurricanes as influenced by background erosion rate and direction of incident waves as they approaching the curved shoreline. For both storms, the erosional hot spot at North Sand Key with the highest background erosion rate suffered the most sand loss over the entire profile. More sand was eroded from the dry beach along the broad headland than along the beaches both north and south of it. Corresponding to the higher volume of dry beach erosion, shoreline retreat was also the largest around the headland. During Hurricane Hermine, the headland sheltering of the southerly approaching waves resulted in more erosion to the south than to the north. The opposite happened during Hurricane Irma with northerly approaching wave. More erosion occurred to the north of the headland than that to the south. Systematic measurement of beach profile beach and after hurricanes can improve our understanding on beach morphodynamics on storm induced beach changes.
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Jackson, Kate Maree. "Suspended solid levels in two chemically dosed sediment retention ponds during earthworks at SH20, Auckland." The University of Waikato, 2008. http://hdl.handle.net/10289/2298.
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Earthworking activities have the potential to accelerate soil erosion through vegetation clearance and soil compaction processes. The eroded sediment can have many detrimental effects on receiving aquatic environments, and thus its discharge is controlled under the Resource Management Act, 1991. Two chemically dosed sediment retentions ponds at the SH20 extension project in Mount Roskill, Auckland were investigated, and the impact of the discharge of one of these ponds on a receiving waterbody was assessed using the Stream Ecological Valuation (SEV) method. Rainfall and suspended solid data was collected for a nine month period between November 2006 and August 2007, although sampling did not commence at one of the ponds until March 2007. Two SEV samples were undertaken within the receiving waterbody; one in November 2006 and the other in November 2007 to assess environmental changes resulting from the sediment retention pond discharge. The suspended solids results measured within the sediment retention ponds during this study were much lower than those reported by other studies on earthwork sites. This is believed to be due to the effective implementation of sediment and erosion control measures onsite. The Somerset Road pond was very effective at removing suspended solids throughout the sampling period, with the majority of suspended solid removal occurring in the forebay as it typically did not become full enough to overflow into the main pond. When the forebay was full of water, the PAC dosing system resulted in large reductions in suspended solid levels over a short horizontal distance within the forebay. A smaller amount of suspended solid reduction was achieved in the main pond, predominately through dilution, with the major function of the main pond being additional storage capacity for runoff. Discharge from the Somerset Road Pond was not continuous due to low water levels in the main pond. However, when discharge did occur, the suspended solids levels were very low compared with other studies investigating sediment retention pond discharge. The Richardson Road pond was less effective at removing suspended solids due to the flow regime within the forebay. There were two runoff channels entering the forebay, as well as a continual flow of groundwater. Only one of the runoff channels was directly dosed with PAC, and as the water level in the forebay was typically at, or just below, the level spreader at all times, there was a decreased potential for the PAC to become evenly distributed through the forebay and achieve dosing of all runoff. Furthermore, the main pond discharged continuously during the study period, resulting in reduced residence times of runoff within the pond system. Nonetheless, the discharge from the main pond was much lower than other studies, implying suspended solid reduction was being achieved. The SEV method indicated that the receiving environment was already degraded due to modifications to the riparian vegetation, increased dissolved oxygen demand, and moderate bank erosion. This was reflected in the macroinvertebrate population, with only pollution tolerant taxa being collected, thus limiting the use of macroinvertebrates as an assessment tool in this study. However, the SEV method, which assesses a wide range of ecological functions, implied that very little environmental change occurred as a result of the sediment retention pond discharge. A small increase in deposited sediment was observed on the stream bed, however indications are that deposited sediment is rapidly washed away once earthworks are completed. Thus this deposited sediment may not have a permanent impact within the receiving environment.
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Zheng, Tingting. "Mathematical modeling of soil erosion by rainfall and shallow overland flow." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/9144.
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New analytical and numerical solutions are developed to both the kinematic approximation to the St Venant equations and the Hairsine-Rose (HR) soil erosion model in order to gain a better physical understanding of soil erosion and sediment transport in shallow overland flow. The HR model is unique amongst physically based erosion models in that it is the only one that: considers the entire distribution of the soil s sediment size classes, considers the development of a layer of deposited non-cohesive sediment having different characteristics to the original underlying cohesive soil and considers separately the erosion processes of rainfall detachment, runoff entrainment and gravitational deposition. The method of characteristics and the method of lines were used to develop both the analytical and numerical solutions respectively. These solutions were obtained for boundary and initial conditions typical of those used in laboratory flume experiments along with physically realistic constant and time dependent excess rainfall rates. Depending on the boundary and initial conditions, interesting new solutions of the kinematic wave equation containing expansion waves, travelling shocks as well as solutions which split into an upslope and downslope drying profiles were found. Numerical solutions of the HR model were applied to the experimental flume data of Polyakov and Nearing (2003) obtained under flow conditions which periodically cycled between net erosion and net deposition conditions. While excellent agreement was found with suspended sediment data, the analysis suggested that an additional transport mechanisms, traditionally not included in soil erosion models, was occurring. While the inclusion of bed-load transport improved the ii overall model prediction, it was still not sufficient. Subsequent asymptotic analysis then showed that the interaction of the flow with an evolving bed morphology was in fact far more important than bed load transport. A very interesting finding from this work showed that the traditional criterion of validating sediment transport model based solely on suspended sediment data was not sufficient as reliable predictions could be obtained even when important transport mechanisms were neglected. Experimental plots of sediment discharge or suspended sediment concentration against water discharge in overland flow have been shown to contain significant hysteresis between the falling and rising limbs of the discharge hydrograph. In the final Chapter, the numerical solution developed for the complete system of soil erosion and kinematic flow was used to show that it was possible for the HR model to simulate three of the four hysteresis loops identified in the literature. Counter clock-wise loops, clock-wise loops and figure 8 loops could all be produced as a result of starting with different initial conditions, being mi(x; 0) = 0, mi(x; 0) = pimt and mi(x; 0) = 0:5pimt respectively. This is the first time that these types of hysteresis loops have been produced by any erosion model. The generation of these hysteresis loops are physically explainable in terms of sediment availability and is consistent with data obtained on the field scale.
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Barchyn, Thomas Edward, and University of Lethbridge Faculty of Arts and Science. "Field-based aeolian sediment transport threshold measurement : sensors, calculation methods, and standards as a strategy for improving inter-study comparison." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, 2010, 2010. http://hdl.handle.net/10133/2616.
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Aeolian sediment transport threshold is commonly defined as the minimum wind speed (or shear stress) necessary for wind-driven sediment transport. Threshold is a core parameter in most models of aeolian transport. Recent advances in methodology for field-based measurement of threshold show promise for improving parameterizations; however, investigators have varied in choice of method and sensor. The impacts of modifying measurement system configuration are unknown. To address this, two field tests were performed: (i) comparison of four piezoelectric sediment transport sensors, and (ii) comparison of four calculation methods. Data from both comparisons suggest that threshold measurements are non-negligibly modified by measurement system configuration and are incomparable. A poor understanding of natural sediment transport dynamics suggests that development of calibration methods could be difficult. Development of technical standards was explored to improve commensurability of measurements. Standards could assist future researchers with data syntheses and integration.xi, 108 leaves : ill. ; 29 cm
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Zhu, Zhaoxu. "Storm Induced Beach Profile Changes along the Coast of Treasure Island, West-Central Florida, U.S.A." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6608.
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Storms play a significant role in beach morphodynamics. Storm-induced beach-profile changes and their longshore variations are investigated in this study. The impacts of four summer tropical storms and two series of winter storms over the last 10 years along the coast of Treasure Island were documented. Tropical storms Alberto in 2006, Fay in 2008, Debby in 2012, Hermine in 2016 and winter storms in winter seasons of 2014 and 2015 are discussed in this study. In general, the Treasure Island beach experienced more erosion generated by tropical storms with greater intensity, but shorter duration, as compared to winter storms due to lower waves, weaker wind and smaller storm surge. Winter storms typically do not generate high storm surge and generally do not cause erosion at the dune and back beach unless the pre-storm beach is very narrow. Based on pre- and post-storm beach-profile surveys along the coast of Treasure Island, the northern end of the barrier island, located directly downdrift of the John’s Pass tidal inlet, experienced erosion along the entire profile during the storms. Along the middle part of Treasure Island, dry beach suffered erosion during both the tropical storms and winter seasons while the nearshore zone suffered erosion during the tropical storms and experienced deposition during the winter seasons. Sunset Beach at the southern end experienced severe erosion during tropical storm Debby, but not during other storms. Winter seasons caused relatively small changes to the morphology of Sunset Beach. Deposition happened in the nearshore zone along Sunset Beach during winter storms. Survey line R143 at the very south end of Treasure Island suffered erosion in tropical storm Alberto, Debby and Hermine. Beach profile changes induced by Tropical storm Fay was different as compared to other tropical storms. Considerably less beach erosion occurred due to the large distance of the storm path from the study area.
Overall, Sunshine Beach, bounded by John’s Pass inlet at northern end of Treasure Island, was influenced both by wave conditions and the tidal flows. Sediment transport was to the north along the coast of Sunshine Beach when wind direction was from south, e.g. during tropical storm Fay. However the northward sediment transport was blocked by the John’s Pass jetty. Therefore, deposition occurred at Sunshine Beach during tropical storm Fay. When wind direction was from north (e.g. during tropical storms Alberto and during the winter seasons), southward sediment transport was generated. Erosion occurs during the northerly approaching storms. The morphodynamics of the middle section of Treasure Island are influenced by the sand supply at the attachment point of John’s Pass ebb delta. Sunset Beach experienced various levels of erosion during the tropical storms not only because of the high wave, strong wind and high water level generated by storms, but also due to the higher waves associated with an offshore dredged pit.
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Hobson, Paul Myron. "Rheologic and flume erosion characteristics of georgia sediments from bridge foundations." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26660.
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Thesis (M. S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2009.Committee Chair: Sturm, Terry; Committee Member: Burns, Susan; Committee Member: Webster, Donald. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Hong, Seonggu. "Comparison of 1-D and 2-D modeling approaches for simulating runoff and sediment transport in overload areas." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-08272007-163824/.
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