ON SOME MOUNTAIN STREAMS AND RIVERS MORPHODYNAMICAL PARAMETER CHARACTERISTICS USING FIELD AND NUMERICAL MODELING
|
|
- Allen George
- 6 years ago
- Views:
Transcription
1 Agricultural University of Krakow, Department of Water Engineering Wojciech Bartnik, Leszek Książek, Artur Radecki-Pawlik, Andrzej Strużyński ON SOME MOUNTAIN STREAMS AND RIVERS MORPHODYNAMICAL PARAMETER CHARACTERISTICS USING FIELD AND NUMERICAL MODELING CEM, Gdansk-Sobieszewo May 18-22, 2005
2 1. Introduction 2. Mountain streams bedload incipient motion and bedload transport outlook 3. Formation of gravel bars 4. Modelling of fluvial processes Forecasting of fluvial processes on the Skawa River within back-water reach of the Swinna Poreba water reservoir 5. Conclusions
3 1. Introduction The work present work concentrates on description of some basic parameters and features of the mountainous streams which are responsible for morphodynamical changes in a their chosen cross sections. The paper deals firstly with description of the parameters of sediment motion in stream and the critical conditions of motion basically with the incipient of the motion of sediment, next is describing some features from the mountainous gravel river bed which one can find in the field and finally the paper is showing a possibility of modeling the mentioned phenomena using the case study results from one of Polish mountain rivers.
4 2. Mountain streams bedload incipient motion and bedload transport outlook Tenczyński Stream
5 2. Mountain streams bedload incipient motion and bedload transport outlook Skawa River Fot. L. Książek., W. Bartnik
6 2. Mountain streams bedload incipient motion and bedload transport outlook natural grains measured d from 1 to 12 cmz Fot. A. Strużyński
7 2. Mountain streams bedload incipient motion and bedload transport outlook Shape of grains influences the intensity of bed formation processes
8 2. Mountain streams bedload incipient motion and bedload transport outlook - sorting and armoring - from heterogeneous to uniform bed load Fot. A. Strużyński
9 2. Mountain streams bedload incipient motion and bedload transport outlook In the flume the electronic profile-meter DISTANCE PRO I is installed. Bed roughness is calculated as standard deviation of data taken from measurements of distance from bed. homogeneous roughness ks = K (1.926 SF SF )
10 3. Formation of gravel bars
11 3. Formation of gravel bars Bank erosion Fot. W Bartnik
12 3. Formation of gravel bars mid-channel bar Fot. A. Radecki-Pawlik
13 3. Formation of gravel bars alternate bars Fot. A. Radecki-Pawlik
14 3. Formation of gravel bars braided bar Fot. A. Radecki-Pawlik
15 3. Formation of gravel bars Gravel bars reconaissance Amount of deposited material
16 Few examples of measurement methods for bedload characteristics/transportation
17 Mountain streams bedload incipient motion and bedload transport outlook Granulometry sieving method Fot. L. Książek
18 Mountain streams bedload incipient motion and bedload transport outlook p [% ] d [cm] Granulmetry sieving method Fot. L. Książek
19 Mountain streams bedload incipient motion and bedload transport outlook Traditional method of collecting probes of bed load allow to describe only grains laying on the bed surface. Probe is disturbanced. Sample freezing method (using nitrogen) gives more benefits. The probe is taken as layer in bed. The sieve curves are made for few separate layers (about 10cm thick) starting from bed surface up to m deep. This gives possibility to describe bed change processes which can be expected in treated river. Sample freezing method Fot. A. Michalik
20 p [%] Mountain streams bedload incipient motion and bedload transport outlook Warstwy: cm 5-10 cm cm cm cm cm cm d [m] Measurement of bed material granulometry in layers
21 Mountain streams bedload incipient motion and bedload transport outlook Radioactive tracers (Cs137) allow monitoring of bed load initiation sheer stresses in natural conditions. The grains are measured and drilled. After this the radioactive tracer is injected. Movement initiation of every categorized grain from the detector is noticed. Fot. L. Książek
22 Mountain streams bedload incipient motion and bedload transport outlook The flow conditions causing initiation of every fraction movement are exactly measured. After investigation all grains are taken back from the river. Fot. A. Michalik
23 Mountain streams bedload incipient motion and bedload transport outlook Qm k Q km q si 2/3 3/ 2 1/ 3 2 / 3 hi A s d B q s g h I f i s d i pi 1/ 3 0,25 Meyer-Peter, Müller orginal formula Zurych 1934 Meyer-Peter, Müller modified formula Flow regime of mountain rivers differs from lowland rivers so transportation of bed material can be calculated by using simplyfied formula
24 Mountain streams bedload incipient motion and bedload transport outlook Critical stresses for multifractional bed material
25 Mountain streams bedload incipient motion and bedload transport outlook Software written improve effectiveness of used methods
26 Mountain streams bedload incipient motion and bedload transport outlook q p 0 / c di q(di) p (di) 0 pa (di) dmin dmax q(di) p (di) 0 dmin natural grains measured d from 1 to 12 cm
27 Mountain streams bedload incipient motion and bedload transport outlook dm [m], c [kn/m2] dm c water depth [m] natural grains measured d from 1 to 12 cm
28 Mountain streams bedload incipient motion and bedload transport outlook p. Tenczynski st.dev ,5 1 1,5 2 2,5 depth[m] natural grains measured d from 1 to 12 cm
29
30 4. Modeling of fluvial processes Mathematical model of the physical object, for example a reach of the river is a mathematical abstraction which combines: initial conditions, influence of the exterior parameters and the reaction for that influence. Mathematical models are the simplification of real objects. In real cases the model is a compromise between cost of designing process of the model, collecting sufficient amount of parameters which characterize the object and accurance of results. Uselly the most important criterion is the purpose of simulations.
31 FORECASTING OF FLUVIAL PROCESSES ON THE SKAWA RIVER WITHIN BACK-WATER REACH OF THE SWINNA POREBA WATER RESERVOIR The aim of the project - to study sediment transport and related fluvial processes (armouring, agradation, erosion) within the backwater reach of the Swinna Poreba water reservoir Which means: to better understand the impact of dams on the river environment and river habitat and to develop numerical methods that can predict their long term effects on the river morphology with regards to water reservoir operation and dam safety during the passage of floods Fot. L. Książek
32 The project is important for National Water Management and local communities because: 1. There are several cities and villages within the back-water reach of the Swinna Poreba water reservoir and we are obliged to provide safety passage of floods along that area 2. It is important to predict the changes of fluvial processes in the Skawa river before and after constriction of the Swinna Poreba water reservoir. Those processes having place not only in the Skawa catchment but also in all tributaries watersheds to the Skawa (the Paleczka, the Tarnawka, the Stryszawka streams) 3. An instruction of exploitation of the water reservoir Swinna Poreba could be prepared 4. Prediction of places were erosion and depositions would take place under back-water effect is important for river and riprarian habitats, deposition of some chemical components (eg. heavy metals) and invertebrates - whole river ecology
33 Main stages of the project... Field measurements Computer simulations Fot. L. Książek, M. Robakiewicz
34 Materials and methods - description of the research catchment Location of the Swinna Poreba water reservoir VISTULA RIVER N 10 km CRACOW CRACOW VISTULA RIVER THE SKAWA RIVER SUCHA BESKIDZKA Fot. W. Bartnik
35 The Swinna Poreba water reservoir and the research reach the dam the research area
36 Autumn 2002 Spring 2004 Autumn 2004 Fot. L. Książek
37 Materials and methods - field measurements Backwater region near Zembrzyce measurements: - distance 1800 [m] 31 cross-sections - 6 cross-sections for measuring velocity (10 verticals each, 3-5 points per vertical) - 12 freezing probes of bed load from riverbed - 20 sieving probes of bed load from riverbed - 50 roughness hight measurements grains were collected for grain shape analysis
38 Field measurements
39 Field measurements Grain size distribution SF= SF m f e Grain size class [cm] Grain shape >8cm grain amount [%] Characteristic diameter No 5 flow current (bar 4 region) No 6 left bank (bar 4 region) D16 [cm] D50 [cm] D65 [cm] D85 [cm] D90 [cm] dm [cm] Spheroid flatten ellipsoid lengthened ellipsoid Disk Lengthened board Cylinder Grain size distribution, cross-section II-II, probe 2 p [%] 100 Layers: " " " diameter [cm] Fot. A. Michalik Bridge
40 Field measurements The Skawa River t-year floods 23 July July 2004 P[%] Q [m3/s] Fot. L. Książek
41 Numerical modeling CCHE2D is a state-of-the-art two-dimensional, depthaveraged, unsteady, turbulent river flow, sediment transport, and water quality evaluation model.
42 Mathematical model - Governing Equations The model solves the momentum equations Free surface elevation for the flow is calculated by the depth-integrated continuity equation: Because many open channel flows are shallow water problems, the effect of vertical motion is usually of insignificant magnitude. The depth integrated 2D equations are generally accepted for studying the open channel hydraulics with resonable accuracy. The CCHE2D model uses the Efficient Element Method (special finite element method) to discretize the 2D depth averaged shallow water flow equations. Continuity equation of bedload, bed changes - mass balance equation
43 Mathematical model - Sediment Transport SEDIMENT TRANSPORT MODELS to CCHE2D Select Transport Capacity Formula mm mm mm - Laursen, - Yang, - MPM
44 The Skawa River and Swinna Poreba reservoir bathymetry file
45 The Skawa River mesh generating
46 The Skawa River mesh generating
47 The Skawa River mesh generating
48 The Skawa River mesh generating
49 Runs SkawaD1 280 m3/s 304,56 SkawaD2 280 m3/s 306,5 SkawaD3 280 m3/s 307,80 SkawaD4 280 m3/s 309,6 SkawaD5 205 m3/s 304,56 SkawaD6 205 m3/s 306,5 SkawaD7 205 m3/s 307,80 SkawaD8 205 m3/s 309,6 SkawaD9 112 m3/s 304,56 SkawaD m3/s 306,5 SkawaD m3/s 307,80 SkawaD m3/s 309,6
50 Velocity magnitude for Q=35 m3 s-1 along the back-water curve without back-water effect
51 Velocity magnitude for Q=205 m3 s-1 along the back-water reach without back-water effect
52 Velocity magnitude for Q=205 m3 s-1 along the back-water reach with back-water effect
53 Velocity magnitude for Q=280 m3 s-1 along the back-water reach with back-water effect
54 Bed shear stress magnitude for Q=280 m3 s-1 along the back-water reach with back-water effect
55 Simulated water surface levels (WSL) along the back-water reach without back-water effect The Skawa River, reservoir water surface level ,00 Bed level Discharge Q=280 m3/s Discharge Q=360 m3/s Discharge Q=548 m3/s Discharge Q=785 m3/s 314,00 Level [m a.s.l.] 312,00 310,00 308,00 306,00 304,00 302,00 300, Distance [m]
56 Average water slopes along the research section of the Skawa River Discharge Q [m3 s-1] Calculated slope of water surface [- ] 0, , , , , ,00410
57 Simulated water surface level for Q=35 m3 s-1 for different water reservoir surface levels Cross-section XIV-XIV 1.5 km
58 Modeled water surface levels (WSL) for different discharges with back-water effect Cross-section XIV-XIV
59 Bedload transport rate along the back-water reach without back-water effect Bedload transport volume 1100 m3
60 Bed elevation changes: Q=205 m3 s-1 with backwater effect Bed elevation changes: Q=280 m3 s-1 with backwater effect
61 Measured and modeld bed elevation with back-water effect
62 Median size d50 changes along the backwater reach without back-water effect
63 Initial and final median size d50 changes along with back-water effect
64 Bed material composition for size class d>0.08 m with back-water effect
65 Grain size distribution at cross-section III-III for discharge Q=205 m3s-1 with back-water effect
66 Grain size distribution at cross-section XIVXIV for discharge Q=280 m3s-1 with back-water effect
67 Total bedload transport rate within selected cross-sections without backwater effect Total bedload transport rate within selected cross-sections with back-water effect
68 Suspended load concentration for fraction mm, discharge Q=205 m3 s-1 with and without back-water effect di [mm] pi [-] The initial composition of suspended load material
69 Modeled suspended load concentration for fraction mm, discharge Q=205 m3 s-1 with and without back-water effect
70 Armored layer formation according to CCHE2D model and ARMOUR for the same flow conditions pi 100 [%] mixed granulometry 60 initial depth [meters] armored bed di [m]
71 4. Conclusions The CCHE2D model allowed to predict in detailes morphological changes along the reach of the Skawa River which is under influence of the back-water curve of the Swinna Poreba water reservoir, Back-water curve of the water reservoir Swinna Poreba influences the initial conditions of bedload transport by reducing the value of shear stresses and because of that strong deposition takes place, The results of simulations the sediment transport quantity and armouring layer formation using the software developed at the Agricultural University of Krakow are comparable with results obtained from numerical modeling with CCHE2D,
72 ACKNOWLEDGEMENT The project FORECASTING OF FLUVIAL PROCESSES ON THE SKAWA RIVER WITHIN BACK-WATER REACH OF THE SWINNA POREBA WATER RESERVOIR is a result of research sponsored by the US State Department Agency for International Development under Agreement No. EE-G and The University of Mississippi, which was technically supported by National Center for Computational Hydroscience and Engineering (NCHE).
73 Fot. L. Książek
ON SOME MOUNTAIN STREAMS AND RIVERS MORPHODYNAMICAL PARAMETER CHARACTERISTICS USING FIELD AND NUMERICAL MODELING EXAMPLES
ON SOME MOUNTAIN STREAMS AND RIVERS MORPHODYNAMICAL PARAMETER CHARACTERISTICS USING FIELD AND NUMERICAL MODELING EXAMPLES WOJCIECH BARTNIK, LESZEK KSIĄŻEK, ARTUR RADECKI-PAWLIK, ANDRZEJ STRUŻYŃSKI Departament
More informationDetermining the Suitable Sediment extraction Locations of Existing Sand and Gravel Mines on Boshar River in Iran using HEC-RAS Modeling
ICSE6-134 Determining the Suitable Sediment extraction Locations of Existing Sand and Gravel Mines on Boshar River in Iran using HEC-RAS Modeling Mohammad GHARESIFARD 1, Ali JAHEDAN 2, Bahar MOLAZEM 3
More informationStrategies for managing sediment in dams. Iwona Conlan Consultant to IKMP, MRCS
Strategies for managing sediment in dams Iwona Conlan Consultant to IKMP, MRCS 1 Sediment trapping by dams Active storage capacity Dead storage coarse material (bed load) Fine materials (suspension) Francis
More informationEXAMPLES (SEDIMENT TRANSPORT) AUTUMN 2018
EXAMPLES (SEDIMENT TRANSPORT) AUTUMN 2018 Q1. Using Cheng s formula estimate the settling velocity of a sand particle of diameter 1 mm in: (a) air; (b) water. Q2. Find the critical Shields parameter diameter
More information3 Theoretical Basis for SAM.sed Calculations
3 Theoretical Basis for SAM.sed Calculations Purpose Sediment transport functions can be used to calculate the bed material portion of the sediment discharge rating curve. This rating curve can then be
More informationSCOPE OF PRESENTATION STREAM DYNAMICS, CHANNEL RESTORATION PLANS, & SEDIMENT TRANSPORT ANALYSES IN RELATION TO RESTORATION PLANS
DESIGN METHODS B: SEDIMENT TRANSPORT PROCESSES FOR STREAM RESTORATION DESIGN PETER KLINGEMAN OREGON STATE UNIVERSITY CIVIL ENGINEERING DEPT., CORVALLIS 2 ND ANNUAL NORTHWEST STREAM RESTORATION DESIGN SYMPOSIUM
More informationHow to predict the sedimentological impacts of reservoir operations?
ICSE 212 How to predict the sedimentological impacts of reservoir operations? E. Valette EDF CIH eric.valette@edf.fr M. Jodeau EDF R&D LNHE magali.jodeau@edf.fr Presentation of the numerical code Courlis
More informationStream Restoration and Environmental River Mechanics. Objectives. Pierre Y. Julien. 1. Peligre Dam in Haiti (deforestation)
Stream Restoration and Environmental River Mechanics Pierre Y. Julien Malaysia 2004 Objectives Brief overview of environmental river mechanics and stream restoration: 1. Typical problems in environmental
More informationDo you think sediment transport is a concern?
STREAM RESTORATION FRAMEWORK AND SEDIMENT TRANSPORT BASICS Pete Klingeman 1 What is Your Restoration Project Like? k? Do you think sediment transport is a concern? East Fork Lewis River, WA Tidal creek,
More informationB-1. Attachment B-1. Evaluation of AdH Model Simplifications in Conowingo Reservoir Sediment Transport Modeling
Attachment B-1 Evaluation of AdH Model Simplifications in Conowingo Reservoir Sediment Transport Modeling 1 October 2012 Lower Susquehanna River Watershed Assessment Evaluation of AdH Model Simplifications
More informationEvaluation of the Nida River main current below the perpendicular flood channel outlet. Andrzej Strużyński, Maciej Wyrębek
Evaluation of the Nida River main current below the perpendicular flood channel outlet Andrzej Strużyński, Maciej Wyrębek Department of Water Engineering Al. Mickiewicza 24/28 30-059 Kraków, Poland e-mail:
More information(3) Sediment Movement Classes of sediment transported
9/17/15 (3) Sediment Movement Classes of sediment transported Dissolved load Suspended load Important for scouring algae Bedload (5-10% total load) Moves along bed during floods Source of crushing for
More information(3) Sediment Movement Classes of sediment transported
(3) Sediment Movement Classes of sediment transported Dissolved load Suspended (and wash load ) Important for scouring algae Bedload (5-10% total load Moves along bed during floods Source of crushing for
More information~ W 89 CONTENTS J-1 J-1 J-6 J-7 J-9 J-10 J-10 J-10
15 W 89 J-1. J-2. J-3. J-4. J-5. J-6 J-7. J-8. CONTENTS Introduction... Stable Slope Method... Example 1... Armor Bed Method... Example 2...*.... Dominant Discharge... Bed Material Gradation... Numerical
More informationPART 2:! FLUVIAL HYDRAULICS" HYDROEUROPE
PART 2:! FLUVIAL HYDRAULICS" HYDROEUROPE 2009 1 HYDROEUROPE 2009 2 About shear stress!! Extremely complex concept, can not be measured directly!! Computation is based on very primitive hypotheses that
More informationDischarge. Discharge (Streamflow) is: Q = Velocity (L T -1 ) x Area (L 2 ) Units: L 3 T -1 e.g., m 3 s -1. Velocity. Area
Discharge Discharge (Streamflow) is: Q = Velocity (L T -1 ) x Area (L 2 ) Units: L 3 T -1 e.g., m 3 s -1 Velocity Area Where is the average velocity?? 3 Source: Brooks et al., Hydrology and the Management
More information* Chapter 9 Sediment Transport Mechanics
Chapter 9 Sediment Transport Mechanics Section I Introduction 9-1. Definition Sedimentation embodies the processes of erosion, entrainment, transportation, deposition, and compaction of sediment. These
More informationTom Ballestero University of New Hampshire. 1 May 2013
Tom Ballestero University of New Hampshire 1 May 2013 1 Hydrology 2 Basic Hydrology Low flows most common Flows that fill the stream to the banks and higher are much less common Filling the stream to the
More informationSTUDY GUIDE FOR CONTENT MASTERY. Surface Water Movement
Surface Water SECTION 9.1 Surface Water Movement In your textbook, read about surface water and the way in which it moves sediment. Complete each statement. 1. An excessive amount of water flowing downslope
More informationTechnical Memorandum No
Pajaro River Watershed Study in association with Technical Memorandum No. 1.2.10 Task: Evaluation of Four Watershed Conditions - Sediment To: PRWFPA Staff Working Group Prepared by: Gregory Morris and
More informationModelling of flow and sediment transport in rivers and freshwater deltas Peggy Zinke
1 Modelling of flow and sediment transport in rivers and freshwater deltas Peggy Zinke with contributions from Norwegian and international project partners 2 Outline 1. Introduction 2. Basic ideas of flow
More informationLAB-SCALE INVESTIGATION ONBAR FORMATION COORDINATES IN RIVER BASED ON FLOW AND SEDIMENT
LAB-SCALE INVESTIGATION ONBAR FORMATION COORDINATES IN RIVER BASED ON FLOW AND SEDIMENT Mat Salleh M. Z., Ariffin J., Mohd-Noor M. F. and Yusof N. A. U. Faculty of Civil Engineering, University Technology
More informationUpper Truckee River Restoration Lake Tahoe, California Presented by Brendan Belby Sacramento, California
Upper Truckee River Restoration Lake Tahoe, California Presented by Brendan Belby Sacramento, California Mike Rudd (Project Manager), Charley Miller & Chad Krofta Declines in Tahoe s Water Clarity The
More informationSediment Transport, Numerical Modeling and Reservoir Management some Concepts and Applications
Sediment Transport, Numerical Modeling and Reservoir Management some Concepts and Applications CEMRACS 2013 August 6 th Magali Jodeau EDF R&D LNHE magali.jodeau@edf.fr Overview of the presentation What
More informationMATHEMATICAL MODELING OF FLUVIAL SEDIMENT DELIVERY, NEKA RIVER, IRAN. S.E. Kermani H. Golmaee M.Z. Ahmadi
JOURNAL OF ENVIRONMENTAL HYDROLOGY The Electronic Journal of the International Association for Environmental Hydrology On the World Wide Web at http://www.hydroweb.com VOLUME 16 2008 MATHEMATICAL MODELING
More informationTexas A & M University and U.S. Bureau of Reclamation Hydrologic Modeling Inventory Model Description Form
Texas A & M University and U.S. Bureau of Reclamation Hydrologic Modeling Inventory Model Description Form JUNE, 1999 Name of Model: Two-Dimensional Alluvial River and Floodplain Model (MIKE21 CHD & CST)
More informationDetermining environmental flow requirements for substrate maintenance in cobble and boulder bed rivers in South Africa
Hydrology Days 2008 Determining environmental flow requirements for substrate maintenance in cobble and boulder bed rivers in South Africa James Cullis 1,2 1 Water Resources Group, Department of Civil,
More informationFluvial Processes in River Engineering
Fluvial Processes in River Engineering Howard H. Chang San Diego State University... A WILEY-INTERSCIENCE PUBLTCATION John Wiley & Sons New York Chicbester Brisbane Toronto Singapore CONTENTS PARTI FLUVIAL
More informationCan fluvial-hydraulic models accurately predict bed load transport in gravel bed streams?
Can fluvial-hydraulic models accurately predict bed load transport in gravel bed streams? Scott B. Katz 1,2, Catalina Segura 1,2 1 Water Resources Graduate Program, 2 Department of Forest Engineering,
More informationNATURE OF RIVERS B-1. Channel Function... ALLUVIAL FEATURES. ... to successfully carry sediment and water from the watershed. ...dissipate energy.
1 2 Function... Sevier River... to successfully carry sediment and water from the watershed....dissipate energy. 3 ALLUVIAL FEATURES 4 CHANNEL DIMENSION The purpose of a stream is to carry water and sediment
More informationRIVERBED EROSION ESTIMATION IN THE SELECTED CROSS-SECTIONS OF THE UPPER VISTULA RIVER
INFRASTRUKTURA I EKOLOGIA TERENÓW WIEJSKICH INFRASTRUCTURE AND ECOLOGY OF RURAL AREAS Nr 2/IV/2013, POLSKA AKADEMIA NAUK, Oddział w Krakowie, s. 109 123 Komisja Technicznej Infrastruktury Wsi RIVERBED
More informationBED LOAD SEDIMENT TRANSPORT
BED LOAD SEDIMENT TRANSPORT Kamal EL KADI ABDERREZZAK EDF-R&D, Laboratoire National d Hydraulique et Environnement (LNHE) 1 17-19 September 2009 UNL, Santa Fe, Argentina OUTLINE I. Bed load II. Settling
More informationTechnical Memorandum No Sediment Model
Pajaro River Watershed Study in association with Technical Memorandum No. 1.2.9 Sediment Model Task: Development of Sediment Model To: PRWFPA Staff Working Group Prepared by: Gregory Morris and Elsie Parrilla
More information1.3.1.1 Incipient Motion Particle movement will occur when the instantaneous fluid force on a particle is just larger than the instantaneous resisting force related to the submerged particle weight and
More informationDiego Burgos. Geology 394. Advisors: Dr. Prestegaard. Phillip Goodling
Sediment Transport into an Urban Tributary Junction Diego Burgos Geology 394 Advisors: Dr. Prestegaard Phillip Goodling 1 Abstract Tributary junctions are an important component of stream morphology and
More informationTwo-Dimensional Simulation of Truckee River Hydrodynamics
Two-Dimensional Simulation of Truckee River Hydrodynamics by Stephen H. Scott PURPOSE: The purpose of this Coastal and Hydraulics Engineering Technical Note (CHETN) is to demonstrate the use of multidimensional
More informationGeomorphology. considerations
Environmental Flows Geomorphology considerations Dr Beevers, Heriot Watt University: Dr A Crosato UNESCO IHE Hydraulics Summary Water components important for ecology etc (depth, velocity, innundation
More informationAPPLICATION OF HEC-RAS MODEL FOR ESTIMATING CHANGES IN WATERCOURSE GEOMETRY DURING FLOODS
Studia Geotechnica et Mechanica, Vol. XXXIV, No. 2, 2012 DOI: 105277/sgm021206 APPLICATION OF HEC-RAS MODEL FOR ESTIMATING CHANGES IN WATERCOURSE GEOMETRY DURING FLOODS JOANNA MARKOWSKA Department of Environmental
More informationESTIMATION OF MORPHOLOGICAL IMPACT OF GROYNE LENGTHENING I. RÁTKY, ÉVA RÁTKY
ESTIMATION OF MORPHOLOGICAL IMPACT OF GROYNE LENGTHENING I. RÁTKY, ÉVA RÁTKY Abstract. Hydraulic-morphological calculations in open channel flows still cause problems for modellers, partially because of
More informationFinal Report for TWDB Contract No
Final Report for TWDB Contract No. 1004831127 Sediment Transport Modeling of Channel Scale Geomorphic Processes J.K. Haschenburger University of Texas at San Antonio July 31, 2012 1 Introduction This study
More informationWhy Stabilizing the Stream As-Is is Not Enough
Why Stabilizing the Stream As-Is is Not Enough Several examples of alternatives to the County s design approach have been suggested. A common theme of these proposals is a less comprehensive effort focusing
More informationDolores River Watershed Study
CHAPTER 4: RIVER AND FLOODPLAIN ISSUES The Dolores River falls into a category of streams in Colorado that share some unique characteristics. Like some other mountain streams in the state, it has a steep
More informationSurface Water and Stream Development
Surface Water and Stream Development Surface Water The moment a raindrop falls to earth it begins its return to the sea. Once water reaches Earth s surface it may evaporate back into the atmosphere, soak
More informationOverview of fluvial and geotechnical processes for TMDL assessment
Overview of fluvial and geotechnical processes for TMDL assessment Christian F Lenhart, Assistant Prof, MSU Research Assoc., U of M Biosystems Engineering Fluvial processes in a glaciated landscape Martin
More informationhttp://water.usgs.gov/waterwatch/ Stream Flow Measurement: Velocity-Area method Stream discharge = Q = U * A Q = volumetric flow rate in [L 3 T -1 ] U= average stream velocity [L 2 T -1 ] A = cross sectional
More informationRiver Restoration and Rehabilitation. Pierre Y. Julien
River Restoration and Rehabilitation Pierre Y. Julien Department of Civil and Environmental Engineering Colorado State University Fort Collins, Colorado River Mechanics and Sediment Transport Lima Peru
More informationSediment transport and river bed evolution
1 Chapter 1 Sediment transport and river bed evolution 1.1 What is the sediment transport? What is the river bed evolution? System of the interaction between flow and river beds Rivers transport a variety
More informationFlood Capacity of Shirakawa River at Tatsudajinnnai Area in Kumamoto Prefecture
International Journal of Economy, Energy and Environment 218; 3(5): 51-57 http://www.sciencepublishinggroup.com/j/ijeee doi: 1.11648/j.ijeee.21835.13 ISSN: 2575-513 (Print); ISSN: 2575-521 (Online) Flood
More informationLectures Hydrology & Fluvial Geomorphology. Gauley River Images. Ancients' (= Biblical) Model of Water (Hydrologic) Cycle
Lectures 11-13 13 Hydrology & Fluvial Geomorphology Gauley River Images http://www.youtube.com/watch?v=eulmuyegtz4&feature=related Ancients' (= Biblical) Model of Water (Hydrologic) Cycle Stream Water
More informationWhat? River response to base level rise. The morphodynamic system. Why? Channel-forming discharge. Flow. u = What s in a name. Flow Sediment transport
River response to base level rise and other boundary conditions Dr. Maarten Kleinhans Summer course climate change and fluvial systems Course materials of Prof. Gary Parker Flow Sediment transport What?
More informationPhysical modelling of sediment transport in mountain torrents upstream of open check dams
Physical modelling of sediment transport in mountain torrents upstream of open check dams Authors: Sebastian SCHWINDT Dr. Mário J. FRANCA Check dam in the region of Trent (Italy) Paper Code: EGU2015-6166
More information!"#$%&&'()*+#$%(,-./0*)%(!
8:30 Sign in Hoosic River Revival Coalition!"#$%&&'()*+#$%(,-./0*)%(! 12-#30+4/#"5-(60 9:00 Welcome and Introductions 9:15 Goals for Today s Program: A Description of the Planning Process 9:30 First Session:
More informationGeomorphology Geology 450/750 Spring Fluvial Processes Project Analysis of Redwood Creek Field Data Due Wednesday, May 26
Geomorphology Geology 450/750 Spring 2004 Fluvial Processes Project Analysis of Redwood Creek Field Data Due Wednesday, May 26 This exercise is intended to give you experience using field data you collected
More informationSediment Transport Analysis for Stream Restoration Design: The Good, the Bad, and the Ugly.
Sediment Transport Analysis for Stream Restoration Design: The Good, the Bad, and the Ugly. Brett Jordan Phd, PE HydroGeo Designs LLC. Land and Water Services Inc. THE GOOD THE BAD THE UGLY THE GOOD THE
More informationImproved physically based approaches for Channel Erosion Modeling in SWAT. Balaji Narasimhan, P. M. Allen, J. G. Arnold, and R.
Improved physically based approaches for Channel Erosion Modeling in SWAT Balaji Narasimhan, P. M. Allen, J. G. Arnold, and R. Srinivasan Outline Channel Erosion Sediment Routing In SWAT2000 and SWAT2005
More informationDebris flows + sediment transport in torrents. Debris flows and sediment. transport in steep catchments
International Workshop "Erosion, Transport Debris flows and sediment transport in steep catchments Dieter Rickenmann WSL - Swiss Federal Research Institute, Mountain Hydrology and Torrents, Birmensdorf,
More informationUpper Mississippi River Basin Environmental Management Program Workshop
Presentation to the Upper Mississippi River Basin Environmental Management Program Workshop by Michael Rodgers River Engineer US Army Corps of Engineers, St. Louis District August 17, 2007 Engineering
More informationMODELING OF LOCAL SCOUR AROUND AL-KUFA BRIDGE PIERS Saleh I. Khassaf, Saja Sadeq Shakir
ISSN 2320-9100 11 International Journal of Advance Research, IJOAR.org Volume 1, Issue 8,August 2013, Online: ISSN 2320-9100 MODELING OF LOCAL SCOUR AROUND AL-KUFA BRIDGE PIERS Saleh I. Khassaf, Saja Sadeq
More informationStream Geomorphology. Leslie A. Morrissey UVM July 25, 2012
Stream Geomorphology Leslie A. Morrissey UVM July 25, 2012 What Functions do Healthy Streams Provide? Flood mitigation Water supply Water quality Sediment storage and transport Habitat Recreation Transportation
More informationTemporal variability of partially-contaminated sediments in a strongly regulated reservoir of the upper Rhine River
Temporal variability of partially-contaminated sediments in a strongly regulated reservoir of the upper Rhine River Germain Antoine 1,2,, Thomas Pretet 1,3,, Matthieu Secher 3,, and Anne Clutier 3, 1 Laboratoire
More informationSEDIMENTATION AND ITS COUNTERMEASURE AT THE OFF-TAKE AREA OF NEW DHALESWARI RIVER
SEDIMENTATION AND ITS COUNTERMEASURE AT THE OFF-TAKE AREA OF NEW DHALESWARI RIVER Tanjir Saif AHMED* MEE15634 Supervisors: Prof. EGASHIRA Shinji** Assoc. Prof. YOROZUYA Atsuhiro*** ABSTRACT Present study
More informationIMPACT project: Dam-break waves over movable beds
EL Kadi, Paquier 1 IMPACT project: Dam-break waves over movable beds K. El Kadi Abderrezzak UR Hydrologie- Hydraulique, Cemagref Lyon, France elkadi@lyon.cemagref.fr A. Paquier UR Hydrologie- Hydraulique,
More informationFIELD TRIP INFORMATION
FIELD TRIP INFORMATION WIEPRZÓWKA AND STRYSZAWKA STUDY AREA The Polish study area proposed for CHANGES research project is situated in southern Poland in Flysch Carpathians. More specifically it covers
More informationThe River Restoration Centre therrc.co.uk. Understanding Fluvial Processes: supporting River Restoration. Dr Jenny Mant
The River Restoration Centre therrc.co.uk Understanding Fluvial Processes: supporting River Restoration Dr Jenny Mant Jenny@therrc.co.uk Understanding your catchment Hydrology Energy associated with the
More informationSYLLABUS, GEO 432/532 APPLIED GEOMORPHOLOGY
SYLLABUS, GEO 432/532 APPLIED GEOMORPHOLOGY Spring 2013 College of Earth, Ocean, and Atmospheric Sciences Oregon State University 3 credits T Th 8:00 9:20 am, Wlkn 210 Stephen Lancaster Wlkn 142, 7-9258,
More informationRiver Response. Sediment Water Wood. Confinement. Bank material. Channel morphology. Valley slope. Riparian vegetation.
River Response River Response Sediment Water Wood Confinement Valley slope Channel morphology Bank material Flow obstructions Riparian vegetation climate catchment vegetation hydrological regime channel
More informationSIMULATION AND PREDICTION OF RIVER MORPHOLOGIC CHANGES USING GSTARS 2.0
SIMULATION AND PREDICTION OF RIVER MORPHOLOGIC CHANGES USING GSTARS 2.0 Chih Ted Yang Manager, Sedimentation and River Hydraulics Group, Technical Service Center, U. S. Bureau of Reclamation, Mail Code
More informationAPPENDIX B Hydraulic Considerations for Pipeline Crossings of Stream Channels
APPENDIX B Hydraulic Considerations for Pipeline Crossings of Stream Channels B-1 B-2 APPENDIX B HYDRAULIC CONSIDERATIONS FOR PIPELINE CROSSINGS OF STREAM CHANNELS Pipeline crossings of perennial, intermittent,
More informationResearch Topic Updated on Oct. 9, 2014
Research Topic Updated on Oct. 9, 204 Mixed Cohesive/Non-cohesive Sediments Sedimentation in Estuary: Flocculation Deposition Erosion Transport Consolidation *: It has been recognized that when the fraction
More informationField Methods to Determine/ Verify Bankfull Elevation, XS Area & Discharge
Module # 6 Field Methods to Determine/ Verify Bankfull Elevation, XS Area & Discharge Iowa s River Restoration Toolbox Level 1 / Base Training Overview of Basic Field Data Collection Site Map Cross Sections
More informationPhysical modeling to guide river restoration projects: An Overview
Physical modeling to guide river restoration projects: An Overview Scott Dusterhoff¹, Leonard Sklar², William Dietrich³, Frank Ligon¹, Yantao Cui¹, and Peter Downs¹ ¹Stillwater Sciences, 2855 Telegraph
More informationChannel Pattern. Channel Pattern, Meanders, and Confluences. Description of Channel Pattern. Bridge (2003)
Channel Pattern Channel Pattern, Meanders, and Confluences Outline Description of channel pattern Alternate bars Channel pattern continua and evolution Controls of channel pattern Description of Channel
More informationRiver Nith restoration, cbec UK Ltd, October 2013 APPENDIX A
APPENDIX A FLUVIAL AUDIT METHOD STATEMENT Fluvial Audit Methodology INTRODUCTION The procedure used to characterize the geomorphic and sedimentary regimes of the River Till is an adaptation of the Fluvial
More informationStream Entrainment, Erosion, Transportation & Deposition
Lecture 12 Zone 2 of the Fluvial System, Continued Stream Entrainment, Erosion, Transportation & Deposition Erosion in a Fluvial Landscape Corrosion Chemical Erosion Corrasion Mechanical Weathering Cavitation
More informationCalculation of Stream Discharge Required to Move Bed Material
Calculation of Stream Discharge Required to Move Bed Material Objective: Students will map two sections of a stream and calculate the depth, velocity, and discharge of flows required to move the stream
More informationStep 5: Channel Bed and Planform Changes
Step 5: Channel Bed and Planform Changes When disturbed, streams go through a series of adjustments to regain equilibrium with the flow and sediment supply of their watersheds. These adjustments often
More informationModule 2. The Science of Surface and Ground Water. Version 2 CE IIT, Kharagpur
Module The Science of Surface and Ground Water Lesson Sediment Dynamics in Alluvial Rivers and Channels Instructional Objectives On completion of this lesson, the student shall be able to learn the following:.
More informationSediment Transport in Open Channels
35 Sediment Transport in Open Channels D. A. Lyn Purdue University 35.1 Introduction 35.2 The Characteristics of Sediment Density, Size, and Shape Size Distribution Fall (or Settling) Velocity Angle of
More informationSediment and Water Quality in HEC-RAS. Mark Jensen
Sediment and Water Quality in HEC-RAS Mark Jensen The HEC-RAS Modeling System 1D River Hydraulics Graphical User Interface Steady & Unsteady Flow Bridges, Culverts, Dams, weirs, gates, etc Data storage/management
More informationIntroduction to BASEMENT Basic Simulation Environment for Computation of Environmental Flow and Natural Hazard Simulation
Introduction to BASEMENT Basic Simulation Environment for Computation of Environmental Flow and Natural Hazard Simulation Numerical Hydraulics Autumn semester 2016 Prof. Dr. Markus Holzner Author: Pascal
More informationHEC-RAS Reservoir Transport Simulation of Three Reservoirs in the Lower Susquehanna River Basin. Mike Langland and Ed Koerkle
HEC-RAS Reservoir Transport Simulation of Three Reservoirs in the Lower Susquehanna River Basin Mike Langland and Ed Koerkle Topics Background / Project Objectives Data Selection - Sediment and Geometric
More informationEstimating Scour. CIVE 510 October 21 st, 2008
Estimating Scour CIVE 510 October 21 st, 2008 1 Causes of Scour 2 Site Stability 3 Mass Failure Downward movement of large and intact masses of soil and rock Occurs when weight on slope exceeds the shear
More informationA Preliminary Study of Field Scour Morphology Downstream of Block Ramps Located at River Bends
Utah State University DigitalCommons@USU International Symposium on Hydraulic Structures May 17th, 8:00 AM A Preliminary Study of Field Scour Morphology Downstream of Block Ramps Located at River Bends
More informationStop 1: Marmot Dam Stop 1: Marmot Dam
Stop 1: Marmot Dam Stop 1: Marmot Dam Following the removal of Marmot Dam in 2007, the fate of the reservoir sediments has been monitored through a series of surveys and sediment transport measurements.
More informationStreams. Water. Hydrologic Cycle. Geol 104: Streams
Streams Why study streams? Running water is the most important geologic agent in erosion, transportation and deposition of sediments. Water The unique physical and chemical properties of water make it
More informationWater quality needs: Flow, velocity. Fish biologists need: Critical depth or velocity. Hydrology gives flows m 3 /s or day
Environmental Water Allocation Hydraulics Dr L Beevers Heriot Watt University, it UK l.beevers@hw.ac.uk Overview Why hydraulics in EWA? Different types of flows Theory Case studies Review Why do we need
More informationPirai river (Bolivia)
Pirai river (Bolivia) Confluent of the Amazon river which average discharge is only 6 m3/s, but with peak discharge over 5000 m3/s, a challenge for river basin management and for flood control HYDROEUROPE
More informationSummary of Hydraulic and Sediment-transport. Analysis of Residual Sediment: Alternatives for the San Clemente Dam Removal/Retrofit Project,
Appendix N SUMMARY OF HYDRAULIC AND SEDIMENT-TRANSPORT ANALYSIS OF RESIDUAL SEDIMENT: ALTERNATIVES FOR THE SAN CLEMENTE DAM REMOVAL/RETROFIT PROJECT, CALIFORNIA the San Clemente Dam Removal/Retrofit Project,
More informationAssignment 1. Measuring River Characteristics- Vernon Creek. Applied Fluvial Geomorphology Field Techniques EESc 435
Assignment 1 Measuring River Characteristics- Vernon Creek Applied Fluvial Geomorphology Field Techniques EESc 435 Amanda Jardine 30100093 Jaime McDonald 14177083 Erica Massey 50870088 April 28, 2012 Introduction
More informationTowards the prediction of free-forming meander formation using 3D computational fluid dynamics
Wasserbaukolloquium 2006: Strömungssimulation im Wasserbau 31 Dresdner Wasserbauliche Mitteilungen Heft 32 Towards the prediction of free-forming meander formation using 3D computational fluid dynamics
More informationEvaluation of the Nida River Main Current Below the Perpendicular Flood Channel Outlet
PUBLS. INST. GEOPHYS. POL. ACAD. SC., E-10 (406), 2008 Evaluation of the Nida River Main Current Below the Perpendicular Flood Channel Outlet Andrzej STRUŻYŃSKI and Maciej WYRĘBEK Department of Water Engineering
More informationBishopville Prong Study
Bathymetric and Sediment Assessment in the Bishopville Prong of St. Martin River Darlene V. Wells, Richard A. Ortt, Jr., and Stephen Van Ryswick Funded by MCBP 2011-2012 Implementation Grant Objectives
More informationDevelopment and testing of improved physically based streambank erosion and sediment routing routines in SWAT
Development and testing of improved physically based streambank erosion and sediment routing routines in SWAT Balaji Narasimhan, P. M. Allen, Stephanie Capello, and Dave Coffman, J.G. Arnold, and R. Srinivasan
More informationStreams. Stream Water Flow
CHAPTER 14 OUTLINE Streams: Transport to the Oceans Does not contain complete lecture notes. To be used to help organize lecture notes and home/test studies. Streams Streams are the major geological agents
More informationUpper Drac River restoration project
Upper Drac River restoration project Restoration of a braided river bed incised in clay substratum through sediment reloading and bed widening SHF Conference, Nantes, 6 & 7 october 2014 Small scale morphological
More informationInternational Journal of Scientific & Engineering Research, Volume 6, Issue 3, March ISSN
International Journal of Scientific & Engineering Research, Volume 6, Issue 3, March-2015 1338 Modeling of Sediment Transport Upstream of Al- Shamia Barrage Prof. Dr. Saleh I. Khassaf, Mohammed jaber Abbas
More informationThe investigation of sediment processes in rivers by means of the Acoustic Doppler Profiler
368 Evolving Water Resources Systems: Understanding, Predicting and Managing Water Society Interactions Proceedings of ICWRS014, Bologna, Italy, June 014 (IAHS Publ. 364, 014). The investigation of sediment
More informationWATERCOURSE HARNESSING BANK EROSION AND CONSOLIDATION
GUVERNUL MINISTERUL POSDRU MUNCII, FAMILIEI ŞI WATERCOURSE HARNESSING BANK EROSION AND CONSOLIDATION PhD. student: ALUPOAE Daniel Gheorghe Asachi Technical University of Iasi, Faculty of Civil Engineering
More informationA STUDY OF LOCAL SCOUR AT BRIDGE PIERS OF EL-MINIA
A STUDY OF LOCAL SCOUR AT BRIDGE PIERS OF EL-MINIA Dr. Gamal A. Sallam 1 and Dr. Medhat Aziz 2 ABSTRACT Bridges are critical structures that require a substantial investment to construct and serve an important
More informationLaboratory Investigation of Submerged Vane Shapes Effect on River Banks Protection
Australian Journal of Basic and Applied Sciences, 5(12): 1402-1407, 2011 ISSN 1991-8178 Laboratory Investigation of Submerged Vane Shapes Effect on River Banks Protection Touraj Samimi Behbahan Department
More information