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Remote Sensing Of Flow Velocity Channel Bathymetry And River Discharge
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Book Synopsis Remote Sensing of Flow Velocity, Channel Bathymetry, and River Discharge by : Carl J Legleiter
Download or read book Remote Sensing of Flow Velocity, Channel Bathymetry, and River Discharge written by Carl J Legleiter and published by . This book was released on 2020-09-23 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: River discharge is a fundamental hydrologic quantity that summarizes how a watershed transforms the input of precipitation into output as channelized streamflow. Accurate discharge measurements are critical for a range of applications including water supply, navigation, recreation, management of in-stream habitat, and the prediction and monitoring of floods and droughts. However, the traditional stream gage networks that provide such data are sparse and declining. Remote sensing represents an appealing alternative for obtaining streamflow information. Potential advantages include greater efficiency, expanded coverage, increased measurement frequency, lower cost and reduced risk to field personnel. In addition, remote sensing provides opportunities to examine long river segments with continuous coverage and high spatial resolution. To realize these benefits, research must focus on the remote measurement of flow velocity, channel geometry and their product: river discharge. This Special Issue fostered the development of novel methods for retrieving discharge and its components, and thus stimulated progress toward an operational capacity for streamflow monitoring. The papers herein address all aspects of the remote measurement of streamflow-estimation of flow velocity, bathymetry (water depth), and discharge-from various types of remotely sensed data acquired from a range of platforms: manned and unmanned aircraft, satellites, and ground-based non-contact sensors.
Book Synopsis Remote Sensing of Water Surface Variability Near River Mouths by : Ruth A. Branch
Download or read book Remote Sensing of Water Surface Variability Near River Mouths written by Ruth A. Branch and published by . This book was released on 2020 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers discharge approximately 106m3/s of freshwater to the oceans yet less than 60% of this discharge is measured at the river mouth. The standard method of measuring river discharge is to use in-situ current meters that are expensive to deploy and not easily used at remote locations. Remote sensing of river discharge could address the problem of global coverage and is becoming an active area of research due to the recent and upcoming improvements of the resolution of satellite altimeters, including the Surface Water and Ocean Topography (SWOT) altimeter. Remote measurements of river discharge have been made from altimeter type water surface elevation data before but only far upstream where the flow is uniform. In order to accurately quantify the amount of freshwater being discharged into the ocean the discharge measurement must be made at the river mouth where the flow is not uniform and the relationship between water surface elevation and discharge is not well understood. This dissertation uses airborne Lidar data, numerical model output, and new analytical expressions to characterize the relationships between river discharge, water surface elevation, tides, and bathymetry at and near the river mouth. It is found that the slope of the water surface elevation at the mouth of the Columbia River changes sign over the tidal period and that wave amplification increases with river flow velocity. Numerical model output of an idealized river discharge describes the shape of the water surface elevation near the river mouth under both low and high discharge conditions. During high discharge conditions an offshore ridge develops on the water surface whose location and height are related to river discharge. Equations are derived to calculate the location and height of the ridge and relate these signatures to the river discharge. These relationships are then used to predict whether the upcoming SWOT altimeter will be able to detect the ridge for flow from the Mississippi, Connecticut, and Columbia Rivers. This research provides an understanding of how water surface elevation changes at the river mouth are related to tides, waves, and discharge and quantifies which of these signals will be observable by SWOT. Finally, remotely sensed infrared videos of the surface are used to infer the bottom drag coefficient in a river. The surface turbulent kinetic energy is extracted from the videos and an equation is derived to calculate the river bottom drag coefficient from the turbulent kinetic energy. The equation is tested with field data from six locations in the Snohomish River and the drag coefficients calculated compare well with drag coefficients calculated from in situ velocity data. In the future, the turbulent kinetic energy equation for the drag coefficient and remote sensing techniques presented here could be applied to data from unmanned aerial vehicles and used in the surf zone.
Book Synopsis The Remote Monitoring Os Surface Velocity, Bathymetry and Discharge in Rivers and Open Channel Flows by : Erika D. Johnson
Download or read book The Remote Monitoring Os Surface Velocity, Bathymetry and Discharge in Rivers and Open Channel Flows written by Erika D. Johnson and published by . This book was released on 2015 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motivated by the ubiquitous nature of turbulent surface features that are present on the surface of naturally occurring shallow flows, this dissertation leverages information contained within these signatures to remotely monitor bathymetry, bed shear stress and volumetric discharge. A series of Large-Scale Particle Image Velocimetry (LSPIV) and Acoustic Doppler Velocimetry (ADV) experiments are conducted in a wide-open channel for a variety of different bathymetric conditions. A methodology is developed that remotely and accurately determines volumetric flow rate from free surface imagery. This methodology takes advantage of the ubiquitous nature of counter-rotating vortices in wide-open channel flows, which have been demonstrated to scale with the flow and influence the pattern of velocity on the free surface. This approach to remote volumetric discharge monitoring is more efficient and cost-effective than current direct methods of determining volumetric flow rate. It reduces hazards to USGS personnel and yields the same or better accuracy relative to current methods. A second technique is developed that permits remote and large-scale assessment of bed shear stress. This is accomplished through correlation of dissipation measurements on the free surface with dissipation measurements in the upper portion of the water column. In open channel flow the distribution of dissipation in the water column follows a semi-theoretical relation developed by Nezu & Nakagawa (1993), which includes friction velocity. Hence, by understanding the correlation between free surface and near-surface values of dissipation, full depth profiles of dissipation can be approximated and the friction velocity, and subsequently bed shear stress, can be determined. The development of this technique has important implications for the prediction of sediment transport.
Book Synopsis Streamflow Measurement by : Reginald W. Herschy
Download or read book Streamflow Measurement written by Reginald W. Herschy and published by CRC Press. This book was released on 2008-06-30 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Too little water or too much'? In either case streamflow measurement is crucial. Climate change could significant affect water resources and flood management. Streamflow measurement is necessary for efficient water management.This third edition deals with all the main current methods for measuring the flow in rivers and open channels, in accordanc
Book Synopsis River Flow 2016 by : George Constantinescu
Download or read book River Flow 2016 written by George Constantinescu and published by CRC Press. This book was released on 2016-06-22 with total page 2434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding and being able to predict fluvial processes is one of the biggest challenges for hydraulics and environmental engineers, hydrologists and other scientists interested in preserving and restoring the diverse functions of rivers. The interactions among flow, turbulence, vegetation, macroinvertebrates and other organisms, as well as the transport and retention of particulate matter, have important consequences on the ecological health of rivers. Managing rivers in an ecologically friendly way is a major component of sustainable engineering design, maintenance and restoration of ecological habitats. To address these challenges, a major focus of River Flow 2016 was to highlight the latest advances in experimental, computational and theoretical approaches that can be used to deepen our understanding and capacity to predict flow and the associated fluid-driven ecological processes, anthropogenic influences, sediment transport and morphodynamic processes. River Flow 2016 was organized under the auspices of the Committee for Fluvial Hydraulics of the International Association for Hydro-Environment Engineering and Research (IAHR). Since its first edition in 2002, the River Flow conference series has become the main international event focusing on river hydrodynamics, sediment transport, river engineering and restoration. Some of the highlights of the 8th International Conference on Fluvial Hydraulics were to focus on inter-disciplinary research involving, among others, ecological and biological aspects relevant to river flows and processes and to emphasize broader themes dealing with river sustainability. River Flow 2016 (extended abstract book 854 pages + full paper CD-ROM 2436 pages) contains the contributions presented during the regular sessions covering the main conference themes and the special sessions focusing on specific hot topics of river flow research, and will be of interest to academics interested in hydraulics, hydrology and environmental engineering.
Book Synopsis Gravel Bed Rivers by : Michael Church
Download or read book Gravel Bed Rivers written by Michael Church and published by John Wiley & Sons. This book was released on 2012-02-10 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravel-Bed Rivers: Processes, Tools, Environments presents a definitive review of current knowledge of gravel-bed rivers, derived from the 7th International Gravel-bed Rivers Workshop, the 5-yearly meeting of the world’s leading authorities in the field. Each chapter in the book has been specifically commissioned to represent areas in which recent progress has been made in the field. The topics covered also represent a coherent progression through the principal areas of the subject (hydraulics; sediment transport; river morphology; tools and methods; applications of science). Definitive review of the current knowledge of gravel-bed rivers Coverage of both fundamental and applied topics Edited by leading academics with contributions from key researchers Thoroughly edited for quality and consistency to provide coherent and logical progression through the principal areas of the subject.
Book Synopsis Geomorphic Analysis of River Systems by : Kirstie A. Fryirs
Download or read book Geomorphic Analysis of River Systems written by Kirstie A. Fryirs and published by John Wiley & Sons. This book was released on 2012-09-26 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a niche in the geomorphology teaching market, this introductory book is built around a 12 week course in fluvial geomorphology. ‘Reading the landscape’ entails making sense of what a riverscape looks like, how it works, how it has evolved over time, and how alterations to one part of a catchment may have secondary consequences elsewhere, over different timeframes. These place-based field analyses are framed within their topographic, climatic and environmental context. Issues and principles presented in the first part of this book provide foundational understandings that underpin the approach to reading the landscape that is presented in the second half of the book. In reading the landscape, detective-style investigations and interpretations are tied to theoretical and conceptual principles to generate catchment-specific analyses of river character, behaviour and evolution, including responses to human disturbance. This book has been constructed as an introductory text on river landscapes, providing a bridge and/or companion to quantitatively-framed or modelled approaches to landscape analysis that are addressed elsewhere. Key principles outlined in the book emphasise the importance of complexity, contingency and emergence in interpreting the character, behaviour and evolution of any given system. The target audience is second and third year undergraduate students in geomorphology, hydrology, earth science and environmental science, as well as river practitioners who use geomorphic understandings to guide scientific and/or management applications. The primary focus of Kirstie and Gary’s research and teaching entails the use of geomorphic principles as a tool with which to develop coherent scientific understandings of river systems, and the application of these understandings in management practice. Kirstie and Gary are co-developers of the River Styles® Framework and Short Course that is widely used in river management, decision-making and training. Additional resources for this book can be found at: www.wiley.com/go/fryirs/riversystems.
Book Synopsis Measuring Discharge with Acoustic Doppler Current Profilers from a Moving Boat by : David S. Mueller
Download or read book Measuring Discharge with Acoustic Doppler Current Profilers from a Moving Boat written by David S. Mueller and published by CreateSpace. This book was released on 2014-06-16 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mission of the U.S. Geological Survey (USGS) Water Resources Discipline is to provide the information and understanding needed for wise management of the Nation's water resources. Inherent in this mission is the responsibility of collecting data that accurately describe the physical, chemical, and biological attributes of water systems. These data are used for environmental and resource assessments by the USGS, other government agencies and scientific organizations, and the general public. Reliable and quality-assured data are essential to the credibility and impartiality of the water-resources appraisals carried out by the USGS.
Book Synopsis River Flow 2012 by : Rafael Murillo Munoz
Download or read book River Flow 2012 written by Rafael Murillo Munoz and published by CRC Press. This book was released on 2012-10-05 with total page 1364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing the most recent theoretical accomplishments, numerical developments, experimental investigations and field studies in Fluvial Hydraulics, River Flow 2012 is an excellent resource for researchers, civil and environmental engineers, and practitioners in river-related disciplines.
Download or read book River Flow 2020 written by Wim Uijttewaal and published by CRC Press. This book was released on 2020-08-27 with total page 2459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers form one of the lifelines in our society by providing essential services such as availability of fresh water, navigation, energy, ecosystem services, and flood conveyance. Because of this essential role, mankind has interfered continuously in order to benefit most and at the same time avoid adverse consequences such as flood risk and droughts. This has resulted in often highly engineered rivers with a narrow set of functions. In the last decades rivers are increasingly considered in a more holistic manner as a system with a multitude of interdependent processes. River research and engineering has therefore added to the river fundamentals also themes like ecohydraulics, consequences of climate change, and urbanisation. River Flow 2020 contains the contributions presented at the 10th conference on Fluvial Hydraulics, River Flow 2020, organised under the auspices of the Committee on Fluvial Hydraulics of the International Association for Hydro-Environment Engineering and Research (IAHR). What should have been a lively physical gathering of researchers, students and practitioners, was converted into an online event as the COVID-19 pandemic hindered international travelling and large gatherings of people. Nevertheless, the fluvial hydraulics community showed their interest and to be very much alive with a high number of participations for such event. Since its first edition in 2002, in Louvain-la-Neuve, this series of conferences has found a large and loyal audience in the river research and engineering community while being also attractive to the new researchers and young professionals. This is highlighted by the large number of contributions applying for the Coleman award for young researchers, and also by the number of applications and attendants to the Master Classes which are aimed at young researchers and students. River Flow 2020 aims to provide an updated overview of the ongoing research in this wide range of topics, and contains five major themes which are focus of research in the fluvial environment: river fundamentals, the digital river, the healthy river, extreme events and rivers under pressure. Other highlights of River Flow 2020 include the substantial number of interdisciplinary subthemes and sessions of special interest. The contributions will therefore be of interest to academics in hydraulics, hydrology and environmental engineering as well as practitioners that would like to be updated about the newest findings and hot themes in river research and engineering.
Book Synopsis Advances in Hydro-Meteorological Monitoring by : Tommaso Moramarco
Download or read book Advances in Hydro-Meteorological Monitoring written by Tommaso Moramarco and published by MDPI. This book was released on 2018-10-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Advances in Hydro-Meteorological Monitoring" that was published in Water
Book Synopsis Fluvial Remote Sensing for Science and Management by : Patrice Carbonneau
Download or read book Fluvial Remote Sensing for Science and Management written by Patrice Carbonneau and published by John Wiley & Sons. This book was released on 2012-08-15 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of progress in the general area of fluvial remote sensing with a specific focus on its potential contribution to river management. The book highlights a range of challenging issues by considering a range of spatial and temporal scales with perspectives from a variety of disciplines. The book starts with an overview of the technical progress leading to new management applications for a range of field contexts and spatial scales. Topics include colour imagery, multi-spectral and hyper-spectral imagery, video, photogrammetry and LiDAR. The book then discusses management applications such as targeted, network scale, planning, land-use change modelling at catchment scales, characterisation of channel reaches (riparian vegetation, geomorphic features) in both spatial and temporal dimensions, fish habitat assessment, flow measurement, monitoring river restoration and maintenance and, the appraisal of human perceptions of riverscapes. Key Features: • A specific focus on management applications in a period of increasing demands on managers to characterize river features and their evolution at different spatial scales • An integration across all scales of imagery with a clear discussion of both ground based and airborne images • Includes a wide-range of environmental problems • Coverage of cutting-edge technology • Contributions from leading researchers in the field
Book Synopsis Remote Sensing of Geomorphology by :
Download or read book Remote Sensing of Geomorphology written by and published by Elsevier. This book was released on 2020-04-16 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing of Geomorphology, Volume 23, discusses the new range of remote-sensing techniques (lidar, structure from motion photogrammetry, advanced satellite platforms) that has led to a dramatic increase in terrain information, and as such provided new opportunities for a better understanding of surface morphology and related Earth surface processes. As several papers have been published (including paper reviews and special issues) on this topic, this book summarizes the major advances in remote sensing techniques for the analysis of Earth surface morphology and processes, also highlighting future challenges. Useful for MSc and PhD students, this book is also ideal for any scientists that want to have a single volume guideline to help them develop new ideas. In addition, technicians and private and public sectors working on remote sensing will find the information useful to their initiatives. Provides a useful guideline for MSc and PhD students, scientists, technicians, and land planners on the use of remote sensing in geomorphology Includes applications on specific case studies that highlight issues and benefits of one technique compared to others Presents future trends in remote sensing and geomorphology
Book Synopsis Hydrological Aspects of Climate Change by : Ashish Pandey
Download or read book Hydrological Aspects of Climate Change written by Ashish Pandey and published by Springer Nature. This book was released on 2021-04-17 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume arises from the work of Roorkee Water Conclave 2020 and focuses on the hydrological aspects of climate change, hydrological extremes, and adaptation for water resources management. The research papers in this book are centred on themes such as climate change and water security, water resources management, and adaptation to climate change. This volume contains chapters on historical purview of the developments in water management, policy issues, latest development in sustainable water management including their practical applications, real time adverse impact on climate, and more. This volume will be useful to students, researchers as well as practitioners.
Book Synopsis River Discharge to the Coastal Ocean by : John D. Milliman
Download or read book River Discharge to the Coastal Ocean written by John D. Milliman and published by Cambridge University Press. This book was released on 2013-03-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers provide the primary link between land and sea. Utilizing the world's largest database, this book presents a detailed analysis and synthesis of the processes affecting fluvial discharge of water, sediment and dissolved solids. The ways in which climatic variation, episodic events, and anthropogenic activities - past, present and future - affect the quantity and quality of river discharge are discussed in the final two chapters. The book contains 26 tables and more than 165 figures - many in full color - including global and regional maps. The book's extensive appendix presents the 1534-river database as a series of 44 tables and 132 maps that provide quantitative data regarding the discharge of water, sediment and dissolved solids. The complete database is also presented within a GIS-based package available online at www.cambridge.org/milliman. River Discharge to the Coastal Ocean provides an invaluable resource for researchers, professionals and graduate students in hydrology, oceanography, geology, geomorphology and environmental policy.
Book Synopsis Remote Sensing and Water Resources by : A. Cazenave
Download or read book Remote Sensing and Water Resources written by A. Cazenave and published by Springer. This book was released on 2016-05-04 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of overview articles showing how space-based observations, combined with hydrological modeling, have considerably improved our knowledge of the continental water cycle and its sensitivity to climate change. Two main issues are highlighted: (1) the use in combination of space observations for monitoring water storage changes in river basins worldwide, and (2) the use of space data in hydrological modeling either through data assimilation or as external constraints. The water resources aspect is also addressed, as well as the impacts of direct anthropogenic forcing on land hydrology (e.g. ground water depletion, dam building on rivers, crop irrigation, changes in land use and agricultural practices, etc.). Remote sensing observations offer important new information on this important topic as well, which is highly useful for achieving water management objectives.Over the past 15 years, remote sensing techniques have increasingly demonstrated their capability to monitor components of the water balance of large river basins on time scales ranging from months to decades: satellite altimetry routinely monitors water level changes in large rivers, lakes and floodplains. When combined with satellite imagery, this technique can also measure surface water volume variations. Passive and active microwave sensors offer important information on soil moisture (e.g. the SMOS mission) as well as wetlands and snowpack. The GRACE space gravity mission offers, for the first time, the possibility of directly measuring spatio-temporal variations in the total vertically integrated terrestrial water storage. When combined with other space observations (e.g. from satellite altimetry and SMOS) or model estimates of surface waters and soil moisture, space gravity data can effectively measure groundwater storage variations. New satellite missions, planned for the coming years, will complement the constellation of satellites monitoring waters on land. This is particularly the case for the SWOT mission, which is expected to revolutionize land surface hydrology. Previously published in Surveys in Geophysics, Volume 37, No. 2, 2016
Book Synopsis Streamflow Measurement, Third Edition by : Reginald W. Herschy
Download or read book Streamflow Measurement, Third Edition written by Reginald W. Herschy and published by CRC Press. This book was released on 2008-06-30 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: ‘Too little water or too much’? In either case streamflow measurement is crucial. Climate change could significant affect water resources and flood management. Streamflow measurement is necessary for efficient water management. This third edition deals with all the main current methods for measuring the flow in rivers and open channels, in accordance with ISO and CEN standards and to satisfy the current requirements of the International Organization for Standardization and the European Union’s Water Directive. A new chapter on the Acoustic Doppler Current Profiler (ADCP) is included; the chapter on uncertainties has been redrafted in accordance with the recent International Standard on uncertainties in measurement (GUM); the chapters on the Stage-Fall-Discharge method and Hydrometric Data Processing have also been updated; and a new section on flood flows has been added.
