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Quantifying Gully Erosion In West Tennessee Using High Resolution Lidar Data
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Book Synopsis Quantifying Gully Erosion in West Tennessee Using High Resolution LIDAR Data by : John James McNelis
Download or read book Quantifying Gully Erosion in West Tennessee Using High Resolution LIDAR Data written by John James McNelis and published by . This book was released on 2016 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research demonstrates the use of Light Detection and Ranging (LIDAR) for detailed measurement of volume change and erosional and depositional processes within a small gully and assessing the impact of digital elevation model (DEM) resolution on these measurements. The study site is an active gully in Meeman-Shelby Forest State Park in Tennessee, USA. DEMs were derived from an airborne LIDAR survey and multiple terrestrial LIDAR scans. DEM differences were used to quantify gross volumes of erosion and deposition within the gully over a three year period and a 49 day period. Analysis of the airborne LIDAR point cloud indicated that approximately 10,000 m3 of material eroded from the bluff since the gully was formed between 1969 and 1973. A total volume of 615.8 m3 of material was discharged from the gully between January 2012 (the airborne LIDAR survey) and December 2014 (the first terrestrial LIDAR survey). The surveys using the terrestrial laser scanner generated two 2 cm DEMs representing the gully terrain change during a short period of 49 days between December 2014 and February 2015. The comparison of these two DEMs indicates an estimated 2.1 m3 of material was imported into the gully bottom with 11.5 m3 of gross erosion and 13.6 m3 of gross deposition. The same analysis performed at reduced data resolutions helped identify a turning point in the trends of erosion and deposition estimates at 0.18 m and 0.24 m resolutions, respectively, indicating that higher data densities of the LIDAR point data did not substantially improve the results. The two turning points represent the critical resolutions at which the accuracy of erosion and deposition measurements begin to deteriorate. This study demonstrates that high accuracy and density of point cloud data collected using LIDAR are capable to detect and quantify short term changes in dynamic gully systems. This study also suggests an optimum point density between 10 and 30 points per square meter to maximize efficiency of data collection and processing. The analyses described in this thesis serve as a starting point for further monitoring development of the pool gully at very fine scales.
Book Synopsis sUAS Applications in Geography by : Kory Konsoer
Download or read book sUAS Applications in Geography written by Kory Konsoer and published by Springer Nature. This book was released on 2022-07-20 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of small unoccupied aerial systems (sUAS) for acquiring close-range remotely sensed data has substantially increased in the past 5 years. A primary focus of early research was on physical systems and photogrammetric techniques. However, as sUAS technology continues to improve and more sophisticated payloads are utilized, such as lidar and multispectral cameras, applications have expanded to nearly all subdisciplines within Geography. This edited volume is intended to showcase the various ways in which sUAS are used in geographic research, including geomorphology, environmental and hazard monitoring, biogeography, and urban and sociocultural geography.
Book Synopsis Multi-Scale Assessment of Gully Erosion at Road Drainage Outlets by : Emma Louise Estabrook
Download or read book Multi-Scale Assessment of Gully Erosion at Road Drainage Outlets written by Emma Louise Estabrook and published by . This book was released on 2022 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gully erosion and sediment deposition from roads are underrated sources of sediments entering receiving waterways. While gully erosion has been studied throughout the world, the monitoring of the temporal and spatial erosional processes related to culverts and road drainage is rare. The objectives of this study are to quantify rates of gully erosion from Vermont's transportation drainage networks at multiple temporal scales and report on insights gained from a multi-scale approach to monitoring gully erosion. To quantify event to seasonal timescales of gully erosion, high resolution terrestrial LiDAR surveys were conducted at 13 field sites. Field sites were monitored at least seasonally from September 2019 to May 2021. To evaluate longer-term rates of gully erosion, a coarser approach was implemented that used high resolution airborne LiDAR that covered a longer time interval than field surveys allowed. Culvert outlet locations were inspected for evidence of gully erosion and a sample of gully volume change was estimated via digital elevation model of difference. Results of this study indicate that gullies at road drainage outfalls are a common occurrence in our study region with a median gully frequency of one in every 2 kilometers of road. Gully presence is influenced by road length, elevation, and slope steepness, revealed by different scales of analysis. Estimates of gully change ranged -24 m3/year to 269 m3/year with 76% of features examined eroding less than 10m3/year. These features appear to be dynamically evolving, with some evidence that gully stabilization occurs in some sites over time. Gully stabilization may be achieved over time as these features reach an equilibrium slope or when grade controls such as fallen trees arrest incision. This study can be used as a building block for making roads more resilient to extreme weather events and reducing the environmental impact of roads.
Book Synopsis Quantifying Impervious Surface Area with Moderate Resolution Hyperspectral Imagery and Lidar Data by : Shawn Richard Callihan
Download or read book Quantifying Impervious Surface Area with Moderate Resolution Hyperspectral Imagery and Lidar Data written by Shawn Richard Callihan and published by . This book was released on 2006 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flooding and Equilibrium of Stream Channels by : Keith McBride Kantack
Download or read book Flooding and Equilibrium of Stream Channels written by Keith McBride Kantack and published by . This book was released on 2016 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: While floods have been widely studied, quantifying or predicting their impacts remains challenging for geomorphologists. Often the spatial or temporal scales of analysis prevent robust analytics: spatially, studies typically have been done on the cross section scale or temporally by comparing pre- to post-flood geospatial datasets. In this study, to capture the response and recovery process following a catastrophic flood generated by Tropical Storm Irene, we use high-resolution ({u2264}lm) lidar data from before the flood (2010), one year after the flood (2012), and four years after the flood (2015) to build a predictive model of erosion and deposition, as well as assess the changes in the variability of the channel's unit stream power curve, which we use as a proxy for reach-scale equilibrium. Findings suggest that the downstream gradient in unit stream power is a powerful predictor of erosion and deposition, but where the two-year flow exceeds 150 W/m2, erosion is the dominant response. The result of this is the reduction of variation in the unit stream power curve over the ~l km scale, which we argue to be a change in the direction of reach-scale equilibrium.
Book Synopsis Structure from Motion in the Geosciences by : Jonathan L. Carrivick
Download or read book Structure from Motion in the Geosciences written by Jonathan L. Carrivick and published by John Wiley & Sons. This book was released on 2016-07-15 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure from Motion with Multi View Stereo provides hyperscale landform models using images acquired from standard compact cameras and a network of ground control points. The technique is not limited in temporal frequency and can provide point cloud data comparable in density and accuracy to those generated by terrestrial and airborne laser scanning at a fraction of the cost. It therefore offers exciting opportunities to characterise surface topography in unprecedented detail and, with multi-temporal data, to detect elevation, position and volumetric changes that are symptomatic of earth surface processes. This book firstly places Structure from Motion in the context of other digital surveying methods and details the Structure from Motion workflow including available software packages and assessments of uncertainty and accuracy. It then critically reviews current usage of Structure from Motion in the geosciences, provides a synthesis of recent validation studies and looks to the future by highlighting opportunities arising from developments in allied disciplines. This book will appeal to academics, students and industry professionals because it balances technical knowledge of the Structure from Motion workflow with practical guidelines for image acquisition, image processing and data quality assessment and includes case studies that have been contributed by experts from around the world.
Book Synopsis Design Hydrology and Sedimentology for Small Catchments by : C. T. Haan
Download or read book Design Hydrology and Sedimentology for Small Catchments written by C. T. Haan and published by Elsevier. This book was released on 1994-06-27 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act, with its emphasis on storm water and sediment control in urban areas, has created a compelling need for information in small-catchment hydrology. Design Hydrology and Sedimentology for Small Catchments provides the basic information and techniques required for understanding and implementing design systems to control runoff, erosion, and sedimentation. It will be especially useful to those involved in urban and industrial planning anddevelopment, surface mining activities, storm water management, sediment control, and environmental management. This class-tested text, which presents many solved problems throughout as well as solutions at the end of each chapter, is suitable for undergraduate, graduate, and continuing education courses. In addition, practicing professionals will find it a valuable reference. Anderson/Woessner: APPLIED GROUNDWATER MODELING (1992) Shuirman/Slosson: FORENSIC ENGINEERING (1992) de Marsily: QUANTITATIVE HYDROGEOLOGY (1986) Selley: APPLIED SEDIMENTOLOGY, THIRD EDITION (1988) Huyakorn: COMPUTATIONAL METHODS IN SUBSURFACE FLOW (1986) Pinder: FINITE ELEMENT MODELING IN SURFACE AND SUBSURFACE HYDROLOGY (1977) Key Features * Covers major new improvements and state-of-the-art technologies in sediment control technology * Provides in-depth information on estimating the impact of land-use changes on runoff and flood flows, as well as on estimating erosion and sediment yield from small catchments * Presents superior coverage on design of flood and sediment detention ponds and design of runoff and sediment control measures
Download or read book Geomorphometry written by Tomislav Hengl and published by Newnes. This book was released on 2008-09-25 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geomorphometry is the science of quantitative land-surface analysis. It draws upon mathematical, statistical, and image-processing techniques to quantify the shape of earth's topography at various spatial scales. The focus of geomorphometry is the calculation of surface-form measures (land-surface parameters) and features (objects), which may be used to improve the mapping and modelling of landforms to assist in the evaluation of soils, vegetation, land use, natural hazards, and other information. This book provides a practical guide to preparing Digital Elevation Models (DEM) for analysis and extracting land-surface parameters and objects from DEMs through a variety of software. It further offers detailed instructions on applying parameters and objects in soil, agricultural, environmental and earth sciences. This is a manual of state-of-the-art methods to serve the various researchers who use geomorphometry.Soil scientists will use this book to further learn the methods for classifying and measuring the chemical, biological, and fertility properties of soils and gain a further understaing of the role of soil as a natural resource. Geologists will find value in the instruction this book provides for measuring the physical features of the soil such as elevation, porosity, and structure which geologists use to predict natural disasters such as earthquakes, volcanoes, and flooding. - Technical details on a variety of software packages allow researchers to solve real-life mapping issues - Provides soil and agronomy researchers best practice techniques for soil data analysis to assist in enhanced land-use and planning - Offers geologists essential tactics for better environmental management by providing a comprehensive analysis of the physical features of soil - Companion website includes access to the latest technological advancements previously unpublished in any other comprehensive source: geomorphometry software, DEM data sources, and applications
Download or read book Pedometrics written by Alex. B. McBratney and published by Springer. This book was released on 2018-04-24 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the basic concepts of quantitative soil science and, within this framework, it seeks to construct a new body of knowledge. There is a growing need for quantitative approach in soil science, which arises from a general demand for improved economic production and environmental management. Pedometrics can be defined as the development and application of statistical and mathematical methods applicable to data analysis problems in soil science. This book shows how pedometrics can address key soil-related questions from a quantitative point of view. It addresses four main areas which are akin to the problems of conventional pedology: (i) Understanding the pattern of soil distribution in character space – soil classification, (ii) Understanding soil spatial and temporal variation, (iii) Evaluating the utility and quality of soil and ultimately, (iv) Understanding the genesis of soil. This is the first book that address these problems in a coherent quantitate approach.
Book Synopsis Methods for Measuring Greenhouse Gas Balances and Evaluating Mitigation Options in Smallholder Agriculture by : Todd S. Rosenstock
Download or read book Methods for Measuring Greenhouse Gas Balances and Evaluating Mitigation Options in Smallholder Agriculture written by Todd S. Rosenstock and published by Springer. This book was released on 2016-08-23 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides standards and guidelines for quantifying greenhouse gas emissions and removals in smallholder agricultural systems and comparing options for climate change mitigation based on emission reductions and livelihood trade-offs. Globally, agriculture is directly responsible for about 11% of annual greenhouse gas (GHG) emissions and induces an additional 17% through land use change, mostly in developing countries. Farms in the developing countries of sub-Saharan Africa and Asia are predominately managed by smallholders, with 80% of land holdings smaller than ten hectares. However, little to no information exists on greenhouse gas emissions and mitigation potentials in smallholder agriculture. Greenhouse gas measurements in agriculture are expensive, time consuming, and error prone, challenges only exacerbated by the heterogeneity of smallholder systems and landscapes. Concerns over methodological rigor, measurement costs, and the diversity of approaches, coupled with the demand for robust information suggest it is germane for the scientific community to establish standards of measurements for quantifying GHG emissions from smallholder agriculture. Standard guidelines for use by scientists, development organizations will help generate reliable data on emissions baselines and allow rigorous comparisons of mitigation options. The guidelines described in this book, developed by the CGIAR Research Program on Climate Change, Agriculture, and Food Security (CCAFS) and partners, are intended to inform anyone conducting field measurements of agricultural greenhouse gas sources and sinks, especially to develop IPCC Tier 2 emission factors or to compare mitigation options in smallholder systems.
Book Synopsis Handbook of Erosion Modelling by : R. P. C. Morgan
Download or read book Handbook of Erosion Modelling written by R. P. C. Morgan and published by John Wiley & Sons. This book was released on 2016-04-13 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The movement of sediment and associated pollutants over thelandscape and into water bodies is of increasing concern withrespect to pollution control, prevention of muddy floods andenvironmental protection. In addition, the loss of soil on site hasimplications for declining agricultural productivity, loss ofbiodiversity and decreased amenity and landscape value. The fate ofsediment and the conservation of soil are important issues for landmanagers and decision-makers. In developing appropriate policiesand solutions, managers and researchers are making greater use oferosion models to characterise the processes of erosion and theirinteraction with the landscape. A study of erosion requires one to think in terms ofmicroseconds to understand the mechanics of impact of a singleraindrop on a soil surface, while landscapes form over periods ofthousands of years. These processes operate on scales ofmillimetres for single raindrops to mega-metres for continents.Erosion modelling thus covers quite a lot of ground. This bookintroduces the conceptual and mathematical frameworks used toformulate models of soil erosion and uses case studies to show howmodels are applied to a variety of purposes at a range of spatialand temporal scales. The aim is to provide land managers and otherswith the tools required to select a model appropriate to the typeand scale of erosion problem, to show what users can expect interms of accuracy of model predictions and to provide anappreciation of both the advantages and limitations of models.Problems covered include those arising from agriculture, theconstruction industry, pollution and climatic change and range inscale from farms to small and large catchments. The book will alsobe useful to students and research scientists as an up-to-datereview of the state-of-art of erosion modelling and, through aknowledge of how models are used in practice, in highlighting thegaps in knowledge that need to be filled in order to develop evenbetter models.
Author :Raphael A. Viscarra Rossel Publisher :Springer Science & Business Media ISBN 13 :9048188598 Total Pages :440 pages Book Rating :4.0/5 (481 download)
Book Synopsis Proximal Soil Sensing by : Raphael A. Viscarra Rossel
Download or read book Proximal Soil Sensing written by Raphael A. Viscarra Rossel and published by Springer Science & Business Media. This book was released on 2010-07-25 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on developments in Proximal Soil Sensing (PSS) and high resolution digital soil mapping. PSS has become a multidisciplinary area of study that aims to develop field-based techniques for collecting information on the soil from close by, or within, the soil. Amongst others, PSS involves the use of optical, geophysical, electrochemical, mathematical and statistical methods. This volume, suitable for undergraduate course material and postgraduate research, brings together ideas and examples from those developing and using proximal sensors and high resolution digital soil maps for applications such as precision agriculture, soil contamination, archaeology, peri-urban design and high land-value applications, where there is a particular need for high spatial resolution information. The book in particular covers soil sensor sampling, proximal soil sensor development and use, sensor calibrations, prediction methods for large data sets, applications of proximal soil sensing, and high-resolution digital soil mapping. Key themes: soil sensor sampling – soil sensor calibrations – spatial prediction methods – reflectance spectroscopy – electromagnetic induction and electrical resistivity – radar and gamma radiometrics – multi-sensor platforms – high resolution digital soil mapping - applications Raphael A. Viscarra Rossel is a scientist at the Commonwealth Scientific and Industrial Research Organisation (CSIRO) of Australia. Alex McBratney is Pro-Dean and Professor of Soil Science in the Faculty of Agriculture Food & Natural Resources at the University of Sydney in Australia. Budiman Minasny is a Senior Research Fellow in the Faculty of Agriculture Food & Natural Resources at the University of Sydney in Australia.
Author :Daniel deBoucherville Richter Publisher :Cambridge University Press ISBN 13 :9780521771719 Total Pages :276 pages Book Rating :4.7/5 (717 download)
Book Synopsis Understanding Soil Change by : Daniel deBoucherville Richter
Download or read book Understanding Soil Change written by Daniel deBoucherville Richter and published by Cambridge University Press. This book was released on 2001-06-14 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores a legacy of soil change in southeastern North America.
Book Synopsis Principles of Gully Erosion in the Piedmont of South Carolina by : Hubert Andrew Ireland
Download or read book Principles of Gully Erosion in the Piedmont of South Carolina written by Hubert Andrew Ireland and published by . This book was released on 1939 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial Modeling in GIS and R for Earth and Environmental Sciences by : Hamid Reza Pourghasemi
Download or read book Spatial Modeling in GIS and R for Earth and Environmental Sciences written by Hamid Reza Pourghasemi and published by Elsevier. This book was released on 2019-01-18 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial Modeling in GIS and R for Earth and Environmental Sciences offers an integrated approach to spatial modelling using both GIS and R. Given the importance of Geographical Information Systems and geostatistics across a variety of applications in Earth and Environmental Science, a clear link between GIS and open source software is essential for the study of spatial objects or phenomena that occur in the real world and facilitate problem-solving. Organized into clear sections on applications and using case studies, the book helps researchers to more quickly understand GIS data and formulate more complex conclusions. The book is the first reference to provide methods and applications for combining the use of R and GIS in modeling spatial processes. It is an essential tool for students and researchers in earth and environmental science, especially those looking to better utilize GIS and spatial modeling. - Offers a clear, interdisciplinary guide to serve researchers in a variety of fields, including hazards, land surveying, remote sensing, cartography, geophysics, geology, natural resources, environment and geography - Provides an overview, methods and case studies for each application - Expresses concepts and methods at an appropriate level for both students and new users to learn by example
Book Synopsis Modeling and Practice of Erosion and Sediment Transport under Change by : Mohamed Meddi
Download or read book Modeling and Practice of Erosion and Sediment Transport under Change written by Mohamed Meddi and published by MDPI. This book was released on 2019-09-17 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: “erosion” and “sediment transport”, “model” and “practice”, and “change”. The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.
Book Synopsis Gully Erosion Studies from India and Surrounding Regions by : Pravat Kumar Shit
Download or read book Gully Erosion Studies from India and Surrounding Regions written by Pravat Kumar Shit and published by Springer Nature. This book was released on 2019-11-19 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers the scientific basis for the ample evaluation of badland management in India and some surrounding regions. It examines the processes operating in the headwaters and main channels of ephemeral rivers in lateritic environments of India. In particular, the book covers a range of vital topics in the areas of gully erosion and water to soil erosion at lateritic uplands regions of India and other regions in Asia. It explores the probable gully erosion modeling through Remote Sensing & GIS Techniques. It is divided into three units. Unit I deals with the introduction of badland, types of badland and the process of badland formation. Unit II is devoted to a description of quantitative measurements. Unit III deals with the control and management processes related to various issues from different regions. As such this book serves as a reference book for research activities in this area. It is an efficient guide for aspiring researchers in applied geography, explaining advanced techniques to help students recognize both simple and complex concepts.
