Effects Of Sensor Resolution On Mapping In Stream Habitats PDF Download

Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Effects Of Sensor Resolution On Mapping In Stream Habitats PDF full book. Access full book title Effects Of Sensor Resolution On Mapping In Stream Habitats.

Effects of Sensor Resolution on Mapping In-stream Habitats

Effects of Sensor Resolution on Mapping In-stream Habitats
Author: Carl J. Legleiter
Publisher:
Total Pages: 7
Release: 2002
Genre: Remote sensing
ISBN:

Download Effects of Sensor Resolution on Mapping In-stream Habitats Book in PDF, ePub and Kindle

Effects of spatial, spectral, and radiometric resolution on remote mapping of fourth-order in-stream habitats were evaluated by comparing hyperspectral imagery to simulated multispectral data. Spectral resolution was more important than spatial or radiometric resolution in improving classification accuracies, although overall accuracies never exceeded 62 percent. Overall accuracies were significantly greater for (1) hyperspectral data (7.2 percent) compared to simulated multispectral imagery, (2) 1 -m pixels (4.7 percent) compared to 2.5-m pixels, and (3) 11-bit data (0.8 percent) compared to &bit data. Higher spatial resolution also enabled removal of transitional areas between units by using interior buffers, improving accuracy by up to 15.6 percent. We believe low overall accuracies were primarily due to the subjective and oversimplified nature of the polygon-based field maps used as ground reference data, and high-resolution imagery might provide a more detailed representation of in-stream habitats. Improved methods of collecting ground reference data, utilizing a point-based approach, should be developed for assessing the accuracy of classifications derived from fine spatial resolution (less than 5-m) imagery. --Abstract.


UAV Sensors for Environmental Monitoring

UAV Sensors for Environmental Monitoring
Author: Felipe Gonzalez Toro
Publisher: MDPI
Total Pages: 671
Release: 2018-03-05
Genre: Technology & Engineering
ISBN: 3038427535

Download UAV Sensors for Environmental Monitoring Book in PDF, ePub and Kindle

This book is a printed edition of the Special Issue "UAV Sensors for Environmental Monitoring" that was published in Sensors


Fluvial Remote Sensing for Science and Management

Fluvial Remote Sensing for Science and Management
Author: Patrice Carbonneau
Publisher: John Wiley & Sons
Total Pages: 603
Release: 2012-08-15
Genre: Technology & Engineering
ISBN: 1118351525

Download Fluvial Remote Sensing for Science and Management Book in PDF, ePub and Kindle

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


Gravel Bed Rivers

Gravel Bed Rivers
Author: Michael Church
Publisher: John Wiley & Sons
Total Pages: 605
Release: 2012-02-10
Genre: Nature
ISBN: 1119954258

Download Gravel Bed Rivers Book in PDF, ePub and Kindle

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.


Mountain Geomorphology

Mountain Geomorphology
Author: David R. Butler
Publisher: Gulf Professional Publishing
Total Pages: 414
Release: 2003
Genre: Science
ISBN: 9780444515315

Download Mountain Geomorphology Book in PDF, ePub and Kindle

Mountain Geomorphology - Integrating Earth Systemspresents the papers of the 32nd Annual Binghamton Geomorphology Symposium, held in 2001 in advance of the United Nations-designated '2002 International Year of Mountains'.The three co-editors have collectively worked in mountain environments for over 70 years, and brought together internationally recognized experts in mountain geomorphology from 7 nations presenting research on mountain processes from around the world, including the USA, Canada, China, Europe, and South America.The volume utilizes Earth Systems as a unifying and organizing theme, examining the interactions of the four Earth "spheres" (Lithosphere, Biosphere, Atmosphere, and Hydrosphere) in the context of geomorphic processes in mountain environments. The volume is also a "Festschrift" in honor of Professor John D. "Jack" Vitek, long-time editor of Geomorphology and an outstanding mentor to each of the three co-editors. Papers presented in the volume represent cutting-edge examinations of mountain landforms, geomorphic processes in mountains, and the application of advanced remote sensing and Geographic Information Science technologies for the study of mountain geomorphology.The book should be of interest to all geomorphologists, and to physical geographers and geologists interested in mountain environments. Mountain Geomorphology - Integrating Earth Systemsis the only book of its kind, and stands as a testament to the importance of mountains as locations for studying the interaction of geomorphic processes within an Earth Systems perspective.


Treatise on Geomorphology

Treatise on Geomorphology
Author:
Publisher: Academic Press
Total Pages: 6392
Release: 2013-02-27
Genre: Science
ISBN: 0080885225

Download Treatise on Geomorphology Book in PDF, ePub and Kindle

The changing focus and approach of geomorphic research suggests that the time is opportune for a summary of the state of discipline. The number of peer-reviewed papers published in geomorphic journals has grown steadily for more than two decades and, more importantly, the diversity of authors with respect to geographic location and disciplinary background (geography, geology, ecology, civil engineering, computer science, geographic information science, and others) has expanded dramatically. As more good minds are drawn to geomorphology, and the breadth of the peer-reviewed literature grows, an effective summary of contemporary geomorphic knowledge becomes increasingly difficult. The fourteen volumes of this Treatise on Geomorphology will provide an important reference for users from undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic. Information on the historical development of diverse topics within geomorphology provides context for ongoing research; discussion of research strategies, equipment, and field methods, laboratory experiments, and numerical simulations reflect the multiple approaches to understanding Earth’s surfaces; and summaries of outstanding research questions highlight future challenges and suggest productive new avenues for research. Our future ability to adapt to geomorphic changes in the critical zone very much hinges upon how well landform scientists comprehend the dynamics of Earth’s diverse surfaces. This Treatise on Geomorphology provides a useful synthesis of the state of the discipline, as well as highlighting productive research directions, that Educators and students/researchers will find useful. Geomorphology has advanced greatly in the last 10 years to become a very interdisciplinary field. Undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic will find the answers they need in this broad reference work which has been designed and written to accommodate their diverse backgrounds and levels of understanding Editor-in-Chief, Prof. J. F. Shroder of the University of Nebraska at Omaha, is past president of the QG&G section of the Geological Society of America and present Trustee of the GSA Foundation, while being well respected in the geomorphology research community and having won numerous awards in the field. A host of noted international geomorphologists have contributed state-of-the-art chapters to the work. Readers can be guaranteed that every chapter in this extensive work has been critically reviewed for consistency and accuracy by the World expert Volume Editors and by the Editor-in-Chief himself No other reference work exists in the area of Geomorphology that offers the breadth and depth of information contained in this 14-volume masterpiece. From the foundations and history of geomorphology through to geomorphological innovations and computer modelling, and the past and future states of landform science, no "stone" has been left unturned!


Geographic Information Science and Mountain Geomorphology

Geographic Information Science and Mountain Geomorphology
Author: Michael Bishop
Publisher: Springer Science & Business Media
Total Pages: 564
Release: 2004-06-30
Genre: Science
ISBN: 9783540426400

Download Geographic Information Science and Mountain Geomorphology Book in PDF, ePub and Kindle

From the reviews: "Bishop and Schroder (both, Univ. of Nebraska at Omaha) have brought together an impressive group of practitioners in the relatively new application of geographic information science to mountain geomorphology. In doing so, they have produced valuable, first, overall coverage of a high-tech approach to mountain, three-dimensional research. More than 40 contributing authors discuss a wide range of related aspects.... The book is well bound and well produced; each chapter provides an extensive source of references. The numerous line drawings are clearly reproduced, although the mediocre quality of photographic reproduction limits the value of air photographs and satellite images. As is characteristic of many edited collections, there is some variation in chapter quality. Some of the writing is so dense that it requires minute concentration--one chapter, for instance, has 14 pages of references from a total of 43 pages. Nevertheless, this is a vital compendium for a rapidly expanding field of research. Summing Up: Recommended. Upper-division undergraduates through professionals." (J. D. Ives, Choice, March 2005)


High Spatial Resolution Hyperspectral Mapping of In-stream Habitats, Depths, and Woody Debris in Mountain Streams

High Spatial Resolution Hyperspectral Mapping of In-stream Habitats, Depths, and Woody Debris in Mountain Streams
Author: W. Andrew Marcus
Publisher:
Total Pages: 18
Release: 2003
Genre: Cartography
ISBN:

Download High Spatial Resolution Hyperspectral Mapping of In-stream Habitats, Depths, and Woody Debris in Mountain Streams Book in PDF, ePub and Kindle

This article evaluates the potential of 1-m resolution, 128-band hyperspectral imagery for mapping in-stream habitats, depths, and woody debris in third- to fifth-order streams in the northern Yellowstone region. Maximum likelihood supervised classification using principal component images provided overall classification accuracies for in-stream habitats (glides, riffles, pools, and eddy drop zones) ranging from 69% for third-order streams to 86% for fifth-order streams. This scale dependency of classification accuracy was probably driven by the greater proportion of transitional boundary areas in the smaller streams. Multiple regressions of measured depths (y) versus principal component scores (x1, x2, Ư, xn) generated R2 values ranging from 67% for high-gradient riffles to 99% for glides in a fifth-order reach. R2 values were lower in third-order reaches, ranging from 28% for runs and glides to 94% for pools. The less accurate depth estimates obtained for smaller streams probably resulted from the relative increase in the number of mixed pixels, where a wide range of depths and surface turbulence occurred within a single pixel. Matched filter (MF) mapping of woody debris generated overall accuracies of 83% in the fifth-order Lamar River. Accuracy figures for the in-stream habitat and wood mapping may have been misleadingly low because the fine-resolution imagery captured fine-scale variations not mapped by field teams, which in turn generated false "misclassifications" when the image and field maps were compared. The use of high spatial resolution hyperspectral (HSRH) imagery for stream mapping is limited by the need for clear water to measure depth, by any tree cover obscuring the stream, and by the limited availability of airborne hyperspectral sensors. Nonetheless, the high accuracies achieved in northern Yellowstone streams indicate that HSRH imagery can be a powerful tool for watershed-wide mapping, monitoring, and modeling of streams. --Abstract.


A Field Guide to British Rivers

A Field Guide to British Rivers
Author: George Heritage
Publisher: John Wiley & Sons
Total Pages: 211
Release: 2021-10-11
Genre: Science
ISBN: 1118487982

Download A Field Guide to British Rivers Book in PDF, ePub and Kindle

Temperate rivers are influenced by many factors including geology, climate, soils, sediment type, flow, as well as human activity. The complex interactions of the non-anthropogenic controlling factors have led to a wonderful diversity of river type throughout the British Isles. Sadly, almost all rivers in the UK have suffered significant and long-lasting modification by unsympathetic management, that has all but destroyed this variety, creating watercourses that are simplified conduits for water and sediment, designed primarily to drain the land and reduce flood risk. This volume aims to help reverse this, illustrating using over 200 images and descriptions, this variety of rivers in Britain, highlighting the many forms that temperate river systems take and providing an accessible summary of the underlying river science knowledge base. A Field Guide to British Rivers covers the full range of upland and lowland channel types and describes the full variety of substrate conditions from bedrock through boulder, cobble and gravel, to silt dominated systems. The authors describe examples gathered from their extensive research and practical experience working with rivers throughout mainland Britain and set those examples in their wider landscape context to exemplify the natural functioning of temperate river types. This book offers a practical and contextualised guide to contribute to efforts towards the sympathetic and sustainable restoration and re-naturalisation of degraded channels in the UK. Offering a unique viewpoint of both the underpinning science and the practicalities of river management, A Field Guide to British Rivers is an essential a stand-alone guide for anyone involved in river restoration and management as well as for those simply interested in rivers in general. Written as a field guide to demonstrate practical examples of river types, and to highlight the pressures they experience and their often-parlous condition, this book is intended to better inform both river management approaches and the policy necessary to achieve this. Fundamentally, the authors seek to demonstrate how the hydrological, geomorphological, and ecological functions of rivers and their catchments are inexorably intertwined, and together how they generate and maintain rivers as dynamic entities.


Remote Sensing and Geospatial Technologies for Coastal Ecosystem Assessment and Management

Remote Sensing and Geospatial Technologies for Coastal Ecosystem Assessment and Management
Author: Xiaojun Yang
Publisher: Springer Science & Business Media
Total Pages: 560
Release: 2008-12-11
Genre: Science
ISBN: 3540881832

Download Remote Sensing and Geospatial Technologies for Coastal Ecosystem Assessment and Management Book in PDF, ePub and Kindle

In this landmark publication, leading experts detail how remote sensing and related geospatial technologies can be used for coastal ecosystem assessment and management. This book is divided into three major parts. In the first part several conceptual and technical issues of applying remote sensing and geospatial technologies in the coastal environment are examined. The second part showcases some of the latest developments in the use of remote sensing and geospatial technologies when characterizing coastal waters, submerged aquatic vegetation, benthic habitats, shorelines, coastal wetlands and watersheds. Finally, the last part demonstrates a watershed-wide synthetic approach that links upstream stressors with downstream responses for integrated coastal ecosystem assessment and management.