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Relevant bibliographies by topics / Orientation of the discharge channel

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Academic literature on the topic 'Orientation of the discharge channel'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Orientation of the discharge channel"

1

Косенков, В.М., та В.Г. Кузьменко. "Влияние ориентации канала разряда в воде на кинематику прогиба пластины". Elektronnaya Obrabotka Materialov 53, № 2 (2017): 75–82. https://doi.org/10.5281/zenodo.1053308.

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An experimental investigation of the influence of orientation of a discharge channel in water and the length of a cylindrical discharge chamber on kinematic characteristics of the maximum deflection of the plates in the moulding process into an open annular matrix. In the process of the research they used an optical method for measuring deflection of the plate during its deformation by pressure waves generated by an electric discharge in water developed by the authors. A significant effect of orientation of the discharge channel and a relative length of a cylindrical discharge chamber on defle

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Lapides, Dana Ariel, and Michael Manga. "Large wood as a confounding factor in interpreting the width of spring-fed streams." Earth Surface Dynamics 8, no. 1 (2020): 195–210. http://dx.doi.org/10.5194/esurf-8-195-2020.

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Abstract. Spring-fed streams throughout volcanic regions of the western United States exhibit larger widths than runoff-fed streams with similar discharge. Due to the distinctive damped hydrograph of spring-fed streams (as compared to large peaks visible in the hydrographs of runoff-fed streams), large wood is less mobile in spring-fed than runoff-fed stream channels, so wood is more likely to remain in place than form logjams as in runoff-fed streams. The consequent long residence time of wood in spring-fed streams allows wood to potentially have long-term impacts on channel morphology. We us

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Russell, Andrew J., Andrew R. Gregory, Andrew R. G. Large, P. Jay Fleisher, and Timothy D. Harris. "Tunnel channel formation during the November 1996 jökulhlaup, Skeiðarárjökull, Iceland." Annals of Glaciology 45 (2007): 95–103. http://dx.doi.org/10.3189/172756407782282552.

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AbstractDespite the ubiquity of tunnel channels and valleys within formerly glaciated areas, their origin remains enigmatic. Few modern analogues exist for event-related subglacial erosion. This paper presents evidence of subglacial meltwater erosion and tunnel channel formation during the November 1996 jökulhlaup, Skeiðarárjökull, Iceland. The jökulhlaup reached a peak discharge of 45 000 to 50 000 m3 s–1, with flood outbursts emanating from multiple outlets across the entire 23 km wide glacier snout. Subsequent retreat of the southeast margin of Skeiðarárjökull has revealed a tunnel channel

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Wang, Bingchuan, Dingxin Liu, and Zhijie Liu. "Effects of gas inlet orientation on discharge characteristics of coaxial dual-channel cross-field atmospheric plasma jet." Physics of Plasmas 30, no. 2 (2023): 023505. http://dx.doi.org/10.1063/5.0134123.

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In this paper, the effect of the gas inlet orientation on the discharge characteristics of the coaxial dual-channel cross-field plasma jet is investigated. A working gas helium is separately flowed into the annular space between the hollow needle tube and the quartz tube (called Q-Jet), as well as the hollow needle tube (called N-Jet). With the same discharge parameters, the results show that the radial and axial dimensions of Q-Jet plasma jet are larger than that of N-Jet. Compared with the latter, the discharge current amplitude of the former increases by about 3.8-fold, the net charge trans

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Kosenkov, V. M., and V. G. Kuz’menko. "Influence of the Orientation of a Discharge Channel in Water on the Kinematics of Plate Deflection." Surface Engineering and Applied Electrochemistry 54, no. 3 (2018): 261–66. http://dx.doi.org/10.3103/s1068375518030079.

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KUZHIR, P., G. BOSSIS, and V. BASHTOVOI. "OPTIMIZATION OF MAGNETORHEOLOGICAL FLUID VALVES." International Journal of Modern Physics B 19, no. 07n09 (2005): 1229–35. http://dx.doi.org/10.1142/s0217979205030116.

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In this paper we analyze efficiency of a magnetorheological (MR) fluid valve consisting of a flow channel placed inside a solenoid. The scope of the optimization is to find a proper geometry and dimensions of the flow channel in order to achieve the highest possible inlet pressure ΔP(H) at a given field strength H. We analyze two types of flow channels: spiral channels with different helix angles and packed beds of spherical and cylindrical particles with different aspect ratios, both nonmagnetic and paramagnetic. For the prediction of the valve discharge characteristics in the presence of the

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Bordy, Emese M., and Orsolya Sztanó. "Badenian (middle Miocene) continental paleoenvironment in the Novohrad–Nógrád Basin (Central Paratethys): a volcano-sedimentary record from the Páris-patak Valley in Hungary." Földtani Közlöny 151, no. 2 (2021): 159. http://dx.doi.org/10.23928/foldt.kozl.2021.151.2.159.

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Two levels of volcaniclastics, comprising conglomerates, sandstones and mudstones, are interbedded with upper middle Miocene (upper Badenian) andesite pyroclastics near the Hungarian-Slovakian border in the distal region of the Central Slovakian Neogene Volcanic Field. Based on the field sedimentological investigations, the facies of the volcaniclastics (e.g., lateral and vertical grain size changes, sedimentary structures, textures, clast composition), their geometry and field relationships are documented herein with the aim of reconstructing the depositional environment. The silica-cemented

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Roushangar, Kiyoumars, Mohammad Taghi Alami, Jalal Shiri, and Mahdi Majedi Asl. "Determining discharge coefficient of labyrinth and arced labyrinth weirs using support vector machine." Hydrology Research 49, no. 3 (2017): 924–38. http://dx.doi.org/10.2166/nh.2017.214.

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Abstract A labyrinth weir is a linear weir folded in plan-view which increases the crest length and the flow rate for a given channel width and an upstream flow depth. The present study aimed at determining discharge coefficients of labyrinth and arced labyrinth weirs using support vector machine (SVM)-based models. A total of 527 laboratory test data of four types of weirs, namely, Normal and Inverted orientation Labyrinth Weirs in flume (NLW, ILW) and Arced Labyrinth Weirs with and without nappe Breakers in reservoir (ALW, ALWB), were captured from the published literature and utilized to fe

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Sintsov S.V., Vodopyanov A.V., Stepanov A.N., et al. "Peculiarities of the formation of a filamentary structure of a microwave discharge in an argon flow." Technical Physics 68, no. 1 (2023): 91. http://dx.doi.org/10.21883/tp.2023.01.55539.226-22.

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This paper presents the results of an experimental study of the spatial structure of a microwave discharge maintained in an argon flow by gyrotron radiation in a continuous mode with a frequency of 24 GHz at atmospheric pressure. In the structure of the plasma plume, stationary filamentary channels are observed, elongated along the direction of the argon flow, regardless of the orientation of the external electric field of the wave, surrounded by a diffusion halo. Measurements of the electron density, vibrational and rotational temperatures of gas molecules in plasma filaments have been carrie

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Lazaridis, Georgios Theodoros, Kyriaki Fellachidou, and Maria-Nefeli Georgaki. "Paleohydrology of the Stefanina Cave (Greece)." Bulletin of the Geological Society of Greece 57, no. 1 (2021): 52. http://dx.doi.org/10.12681/bgsg.26168.

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The development of hypergene Stefanina Cave, the hydrological conditions, and the maximum discharge of the paleo-flow are studied, based on its pattern in ground-plan, the geometry of the passage, and the peak flow velocity from the dimensions of the scallops. The village of Stefanina is located East of Thessaloniki and the cave NE of the village. A study was conducted measuring the orientation of the discontinuities of the rocks inside and outside the cave, the scallops in various sites to estimate the flow velocities, and in addition, were taken photographs for the full analysis of its cross

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Dissertations / Theses on the topic "Orientation of the discharge channel"

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Tabatabai, Mohammad Reza Majdzadeh. "Dominant channel forming discharge." Thesis, University of East Anglia, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389364.

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Wharton, Geraldene. "River discharge estimated from river channel dimensions in Britain." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252678.

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Boontongkong, Yot. "Orientation of channel die-compressed ultra-high molecular weight polyethylene." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/46093.

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Brown, Matthew Lee. "Dynamics of Rigid Fibers in a Planar Converging Channel." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6894.

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The influence of turbulence on the orientation state of a dilute suspension of stiff fibers at high Reynolds number in a planar contraction is investigated. High speed imaging and LDV techniques are used to quantify fiber orientation distribution and turbulent characteristics. A nearly homogenous, isotropic grid generated turbulent flow is introduced at the contraction inlet. Flow Reynolds number and inlet turbulent characteristics are varied in order to determine their effects on orientation distribution. The orientation anisotropy is shown to be accurately modelled by a Fokker-Planck type e

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Kim, Yeonsu. "Probabilistic Estimation of River Discharge Considering Channel Characteristics Uncertainty with Particle Filters." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180482.

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Lee, Kyutae. "Evaluation of methodologies for continuous discharge monitoring in unsteady open-channel flows." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/5012.

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Ratings curves are conventional means to continuously provide estimates of discharges in rivers. Among the most-often adopted assumptions in building these curves are the steady and uniform flow conditions for the open-channel flow that in turn provide a one-to-one relationships between the variables involved in discharge estimation. The steady flow assumption is not applicable during propagation of storm-generated waves hence the question on the validity of the steady rating curves during unsteady flow is of both scientific and practical interest. Scarce experimental evidence and analytical i

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Knight, Deborah Ann. "The influence of discharge variability on river channel width : a field and laboratory study." Thesis, Keele University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265644.

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Innis, Daniel E. "Customer service, repurchase intentions, market orientation and firm performance in the channel." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1269524538.

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Heiner, Bryan J. "Parshall Flume Staff Gauge Location and Entrance Wingwall Discharge Calibration Corrections." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/480.

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The Utah Water Research Laboratory, in conjunction with the State of Utah, initiated a study to determine the accuracy of a wide variety of flow measurement devices in Utah. The project selected 70 sites with flow measurement devices throughout the state. During the assessment each device had its physical condition and flow measurement accuracy documented. Although a wide variety of flow measurement devices were tested, the majority were Parshall flumes. Many of the assessed Parshall flumes were not measuring flow to the specified ±5 percent design accuracy. Problems in flow measurement were d

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Arevalo, Liliana. "Numerical Simulations of Long Spark and Lightning Attachment." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-149171.

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The research work presented here is concerned with numerical simulations of two different electrical phenomena: Long gap electrical discharges under switching impulses and the lightning attachment process associated with positive upward leaders. The development of positive upward leaders and the progression of discharges in long gaps are attributable to two intertwined physical phenomena, namely, the leader channel and the streamer zone. The physical description and the proposed calculations of the above-mentioned phenomena are based on experimental tests conducted in long spark gaps. The meth

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Books on the topic "Orientation of the discharge channel"

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Richard, Gigi A. Channel-forming discharge on the Dolores River and Yampa River, Colorado. Colorado Division of Wildlife, 2007.

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Bent, Gardner C. Equations for estimating bankfull channel geometry and discharge for streams in Massachusetts. U.S. Geological Survey, 2013.

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Siguaw, Judy. The influence of market orientation on channel relationships: A dyadic examination. Marketing Science Institute, 1997.

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Lawlor, Sean M. Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana. U.S. Geological Survey, 2004.

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Lawlor, Sean M. Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana. U.S. Geological Survey, 2004.

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Lawlor, Sean M. Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana. U.S. Geological Survey, 2004.

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Lawlor, Sean M. Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana. U.S. Geological Survey, 2004.

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Lawlor, Sean M. Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana. U.S. Geological Survey, 2004.

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9

Rodriguez, Leandro Ramon Montes. Effects of the October 1983 discharge on channel configuration in the Rillito Creek, Tucson, Arizona. University Microfilms International, 1990.

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Lawlor, Sean M. Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana. U.S. Geological Survey, 2004.

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Book chapters on the topic "Orientation of the discharge channel"

1

Lei, Kaizhuo, Ning Li, Hai Huang, Jianguo Huang, and Jiankang Qu. "The Characteristics of Underwater Plasma Discharge Channel and Its Discharge Circuit." In Advanced Electrical and Electronics Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19712-3_79.

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Sahu, Piyush Pritam, Kanhu Charan Patra, and Abinash Mohanta. "Discharge Prediction Approaches in Meandering Compound Channel." In Water Science and Technology Library. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59148-9_16.

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Ushakov, V. Ya, V. F. Vajov, and N. T. Zinoviev. "Discharge Channel as a “Working Tool” in EDT." In Electro-discharge Technology for Drilling Wells and Concrete Destruction. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04591-3_4.

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Wang, Xin, and Shouyuan Zhang. "Observation of Navigational Hydraulic Characteristics in the Downstream Entrance Area." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-7251-3_33.

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AbstractStrong transverse flows and fluctuations often occur in the downstream approach channel and entrance area during flood discharge at high dam hubs. This study takes a power station as a research sample. Flow velocities, transverse flow intensities, fluctuation characteristics and ship navigation status are analyzed and studied through field observations. The results show that during flood discharge the entrance area experiences transverse short-wave fluctuations and significant transverse currents. The oscillation of hydraulic jumps is the direct factor causing fluctuations in the downs

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Prakash, S., S. S. Sandilya, and Bhabani Shankar Das. "Discharge Prediction in Meandering Compound Channel Using XGBoost and CATBoost." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-8895-8_30.

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Das, Bhagwan, Zulfequar Ahamd, and Pramod Kumar Sharma. "Discharge Characteristics of Lateral Square Intakes in Open Channel Flow." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-8895-8_12.

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Wu, Jianjun, Jian Li, Yuanzheng Zhao, and Yu Zhang. "Integrated Numerical Simulation of PPTs." In Numerical Simulation of Pulsed Plasma Thruster. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-7958-1_8.

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AbstractUnsteady and strong transient behavior are important characteristics of the pulsed plasma thruster (PPT) pulse discharge process. During the discharge process, rapidly heating the propellant surface leads to the ablation and ionization of the wall material. The plasmoid is rapidly formed in the acceleration channel and then accelerated and ejected under the Lorentz force.

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Chen, Z., and S. W. Van Sciver. "Channel Heat Transfer in He I - Steady State Orientation Dependence." In Advances in Cryogenic Engineering. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2213-9_49.

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Kumar, Sumit, and Bhabani Shankar Das. "Discharge Method to Estimate the Flow in Asymmetric Compound Open Channel." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9151-6_20.

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Wang, Gang, Shi Ding Wu, Q. W. Jiang, et al. "Orientation Evolution during Equal Angular Channel Extrusion of Copper Single Crystal." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-975-x.815.

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Conference papers on the topic "Orientation of the discharge channel"

1

Zieh, R. E., and G. Vecchi. "Lightning Discharge on a Branched Channel." In 14th International Zurich Symposium and Technical Exposition on Electromagnetic Compatibility. IEEE, 2001. https://doi.org/10.23919/emc.2001.10792060.

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Liao, H., Y. Liu, L. Li, Y. Zhao, T. Wang, and F. Lin. "Development characteristics of plasma channel for rock breaking by pulsed discharge." In 2024 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2024. http://dx.doi.org/10.1109/icops58192.2024.10627605.

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Zieh, Riccardo E., Giuseppe Vecchi, Michele Sala, and Flavio Canavero. "Return-Stroke Radiation by a Branched Channel: A Transmission-Line Discharge Model." In 13th International Zurich Symposium and Technical Exhibition on Electromagnetic Compatibility. IEEE, 1999. https://doi.org/10.23919/emc.1999.10791555.

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Ye, Lin, Cun-liang Liu, Hui-ren Zhu, Jian-xia Luo, and Ying-ni Zhai. "Investigations on the Influence of Rib Orientation Angle on Film Cooling Performance of Cylindrical Holes." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63968.

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This paper presents an experimental and numerical investigation on the film cooling with different coolant feeding channel structures. Two ribbed cross-flow channels with rib-orientation of 135° and 45° respectively and the plenum coolant channel have been studied and compared to find out the effect of rib orientation on the film cooling performances of cylindrical holes. The film cooling effectiveness and heat transfer coefficient were measured by the transient heat transfer measurement technique with narrow-band thermochromic liquid crystal. Numerical simulations with realizable k-ε turbulen

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Pascotto, Matteo, Alessandro Armellini, Luca Casarsa, and Sebastian Spring. "Numerical Aero-Thermal Analysis of a Rib-Roughened Trailing Edge Cooling Channel at Different Rotation Numbers and Channel Orientations." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25479.

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The present work considers the aero-thermal characterization of a rib-roughened cooling channel for the trailing edge of gas turbine blades, and is based on previous findings from a smooth channel configuration. The passage is characterized by a trapezoidal cross section with high aspect-ratio, radial inlet flow, and coolant discharge at both model tip and trailing side, where seven elongated pedestals are installed. In this study, heat transfer augmentation is achieved by placing inclined squared ribs on the channel central portion. RANS simulations with a SST turbulence model were performed

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Zherlitsyn, Andrey, Vitaly Alexeenko, Evgeniy Kumpyak, and Sergey Kondratiev. "Investigation of the Effect of the Discharge Channel Orientation on the Destruction Efficiency of Electronic Printed Circuit Boards." In 2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE). IEEE, 2020. http://dx.doi.org/10.1109/efre47760.2020.9242195.

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Noh, Sang W., Jae S. Yoo, and Kune Y. Suh. "Visualization of Boiling in Inclined Rectangular Narrow Long Channels." In ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2006. http://dx.doi.org/10.1115/icnmm2006-96059.

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During the Three-Mile Island Unit 2 (TMI-2) accident, the lower part of the reactor pressure vessel had been overheated and then rather rapidly cooled down, as it was later found out in a vessel investigation project. These findings triggered a great deal of investigations to determine the critical heat flux (CHF) in narrow channels. Experiments were conducted to determine the CHF on a long downward heated rectangular narrow channel by changing the orientation of a copper crevice (5×105 mm2) type heater assembly. The test heater was placed in a demineralized, saturated water pool at atmospheri

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Ye, Lin, Cun-liang Liu, Hai-yong Liu, Hui-ren Zhu, and Jian-xia Luo. "Investigations on the Influence of Rib Orientation Angle on Film Cooling Performance of Compound Holes." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75794.

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To investigate the effects of the inclined ribs on internal flow structure in film hole and the film cooling performance on outer surface, experimental and numerical studies are conducted on the effects of rib orientation angle on film cooling of compound cylindrical holes. Three coolant channel cases, including two ribbed cross-flow channels (135° and 45° angled ribs) and the plenum case, are studied under three blowing ratios (0.5, 1.0 and 2.0). 2D contours of film cooling effectiveness as well as heat transfer coefficient were measured by transient liquid crystal measurement technique (TLC)

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Pascotto, Matteo, Alessandro Armellini, Luca Casarsa, Pietro Giannattasio, and Claudio Mucignat. "Effects of Rotation and Channel Orientation on the Flow Field Inside a Trailing Edge Internal Cooling Channel." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68050.

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The flow field inside a trailing edge (TE) cooling channel for gas turbine blades has been numerically investigated with reference to the effects of channel rotation and orientation. The channel consists of a single passage with high aspect ratio cross-section. The flow entering from the hub is discharged through both the channel tip and inter-pedestal passages at the TE. A commercial 3D RANS solver including a κ–ω SST turbulence model has been used to simulate the isothermal steady airflow at 20000 Reynolds number in the case of static channel and for two rotation numbers (Ro = 0.23, 0.46) at

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Li, Bingran, Cunliang Liu, Lin Ye, Huiren Zhu, and Fan Zhang. "Experimental and Numerical Study on the Effects of the Relative Position of Film Hole and Orientation Ribs on the Film Cooling With Ribbed Cross-Flow Coolant Channel." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14389.

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Abstract To investigate the application of ribbed cross-flow coolant channels with film hole effusion and the effects of the internal cooling configuration on film cooling, experimental and numerical studies are conducted on the effect of the relative position of the film holes and different orientation ribs on the film cooling performance. Three cases of the relative position of the film holes and different orientation ribs (post-rib, centered, and pre-rib) in two ribbed cross-flow channels (135° and 45° orientation ribs) are investigated. The film cooling performances are measured under thre

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Reports on the topic "Orientation of the discharge channel"

1

Niederhaus, John Henry, Roy E. Jorgenson, Larry K. Warne, and Kenneth C. Chen. Radiation-MHD simulations for the development of a spark discharge channel. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1365528.

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Lichvar, Robert, David Cate, Corinna Photos, Lindsey Dixon, Bruce Allen, and Joel Byersdorfer. Vegetation and Channel Morphology Responses to Ordinary High Water Discharge Events in Arid West Stream Channels. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada508422.

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Ielpi, A., R. H. Rainbird, and W. J. Davis. Record of Precambrian orogenic unroofing preserved in fluvial strata of western Nunavut. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332496.

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Fluvial sandstone in the Kilohigok and Elu basins of western Nunavut record deposition related to the amalgamation and tenure of the Nuna supercontinent. The ca. 1.9 Ga Burnside River Formation was sourced by erosional unroofing of the nearly coeval Thelon Orogen, about 250 km away, in a regime of crustal flexure. This proximally sourced sandstone contains abundant clustered channel forms that point to high-magnitude discharge and sediment yield in weakly mobile channels. By comparison, the ca. 1.6 Ga Ellice Formation was sourced by the erosional unroofing of the ca. 1.8 Ga Trans-Hudson Orogen

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Brauer, Edward, Stephen Sanborn, Thomas Pokrefke, William McAnally, and Christopher Wallen. Mississippi River AdH model modification and evaluation, Thebes, Illinois, to Birds Point, Missouri, Reach. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48758.

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A calibrated hydrodynamic and sediment transport model of the Upper Mississippi River, from Thebes, Illinois, to Birds Point, Missouri, was created to investigate hydraulics and sediment transport in the river channel and across the Dogtooth Island Peninsula (DIP) as the result of the Len Small levee breach. A hydrodynamic model was developed for the reach and calibrated to stage and breach outflow discharge data for the floods of 2011, 2015–2016, and 2017. The hydrodynamic model was used to investigate breach outflow discharges and shear stress distribution over the DIP. Soil and geologic map

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Bell, Gary, David Abraham, Nathan Clifton, and Lamkin Kenneth. Wabash and Ohio River confluence hydraulic and sediment transport model investigation : a report for US Army Corps of Engineers, Louisville District. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43441.

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Avulsions of the Wabash River in 2008 through 2011 at its confluence with the Ohio River resulted in significant shoaling in the Ohio River. This caused a re-alignment of the navigation channel and the need for frequent dredging. A two-dimensional numerical hydrodynamic model, Adaptive Hydraulics (AdH), was developed to simulate base (existing) conditions and then altered to simulate multiple alternative scenarios to address these sediment issues. The study was conducted in two phases, Phase 1 in 2013 – 2015 and Phase 2 in 2018 – 2020. Field data were collected and consisted of multi-beam bath

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Lauth, Timothy, David Biedenharn, Travis Dahl, et al. Technical assessment of the Old, Mississippi, Atchafalaya, and Red (OMAR) Rivers : geomorphic assessment. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45143.

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This report documents the geomorphic assessment component of the Old River, Mississippi River, Atchafalaya River, and Red River System Technical Assessment. The overall objectives of the geomorphic assessment are to utilize all available data to document the historic trends in hydrology, sedimentation, and channel geometry for the rivers in the vicinity of the Old River Control Complex and to summarize the changes observed at locations where repetitive datasets exist and at key reaches that are determined during the study. The geomorphic assessment tasks include data compilation, geometric dat

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Jansson, Anna, Arun Heer, Suzana Rice, et al. South Shore of Long Island, New York Regional Sediment Management Investigation : an overview of challenges and opportunities. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43920.

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The US Army Corps of Engineers (USACE) is conducting the “South Shore of Long Island, New York Regional Sediment Management Investigation” to further understand sediment dynamics and to develop a comprehensive regional sediment management plan for the south shore of Long Island, New York. Regional sediment management is a systems approach using best management practices for more efficient and effective use of sediments in coastal, estuarine, and inland environments. This investigation seeks to characterize sediment movement on the south shore of Long Island as a holistic system across the enti

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Cooper, Christopher, Jacob McDonald, Eric Starkey, and Wendy Wright. Wadeable stream habitat monitoring at Ocmulgee Mounds National Historical Park: 2017 baseline report. National Park Service, 2019. https://doi.org/10.36967/2268263.

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The Southeast Coast Network (SECN) stream habitat monitoring protocol collects data to give park resource managers insight into the status of and trends in stream and near-channel habitat conditions (McDonald et al. 2018a). Wadeable stream assessments are currently implemented at the five SECN inland parks with wadeable streams. These parks include Horseshoe Bend National Military Park (HOBE), Kennesaw Mountain National Battlefield (KEMO), Ocmulgee Mounds National Historical Park (OCMU), Chattahoochee River National Recreation Area (CHAT), and Congaree National Park (CONG). Streams chosen for

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Douglas, Thomas, Matthew Sturm, Joel Blum, et al. A pulse of mercury and major ions in snowmelt runoff from a small Arctic Alaska watershed. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41203.

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Atmospheric mercury (Hg) is deposited to Polar Regions during springtime atmospheric mercury depletion events (AMDEs) that require halogens and snow or ice surfaces. The fate of this Hg during and following snowmelt is largely unknown. We measured Hg, major ions, and stable water isotopes from the snowpack through the entire spring melt runoff period for two years. Our small (2.5 ha) watershed is near Barrow (now Utqiaġvik), Alaska. We measured discharge, made 10 000 snow depths, and collected over 100 samples of snow and meltwater for chemical analysis in 2008 and 2009 from the watershed snow

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Huang, Tao, and Venkatesh Merwade. Developing Customized NRCS Unit Hydrographs (Finley UHs) for Ungauged Watersheds in Indiana. Purdue University, 2023. http://dx.doi.org/10.5703/1288284317644.

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The Natural Resources Conservation Service (NRCS, formerly the Soil Conservation Service, SCS) unit hydrograph (UH) is one of the most commonly used synthetic UH methods for hydrologic modeling and engineering design all over the world. However, previous studies have shown that the application of the NRCS UH method for some ungauged watersheds in the state of Indiana produced unrealistic flood predictions for both the peak discharge and the time to peak. The objective of this work is to customize the NRCS UH by analyzing the role of its two key parameters, namely, the peak rate factor (PRF) an

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