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Author: Brendan G. Mackey
Publisher: Sault Sainte Marie, Ont. : Natural Resources Canada, Canadian Forest Service
ISBN:
Category : Digital mapping
Languages : en
Pages : 44
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Book Description
A digital elevation model (DEM) is a computer-based representation of the topography of a landscape. DEMs are a fundamental data layer in Geographic Information Systems (GISs). A large number of primary and secondary terrain attributes, useful for environmental modelling, can be generated from a DEM. This report describes the methods and results involved in the development of a new DEM for Ontario and discusses the role of topography processes, environmental modelling, and forest management. Details are given of the steps involved in generating a DEM from the source data using the ANUDEM procedure and advantages of this procedure over other methods are suggested.
Author: Brendan G. Mackey
Publisher: Sault Sainte Marie, Ont. : Natural Resources Canada, Canadian Forest Service
ISBN:
Category : Digital mapping
Languages : en
Pages : 44
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Book Description
A digital elevation model (DEM) is a computer-based representation of the topography of a landscape. DEMs are a fundamental data layer in Geographic Information Systems (GISs). A large number of primary and secondary terrain attributes, useful for environmental modelling, can be generated from a DEM. This report describes the methods and results involved in the development of a new DEM for Ontario and discusses the role of topography processes, environmental modelling, and forest management. Details are given of the steps involved in generating a DEM from the source data using the ANUDEM procedure and advantages of this procedure over other methods are suggested.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
"Elevation data is a core theme that has been provided by Natural Resources Canada (NRCan) to Canadians as essential geographic information. New technologies, including LiDAR data, provide opportunities for enhancing elevation information, products and services. In fact, the needs for elevation data continue to grow and become more specialized, and the acquisition technologies for this type of data are not only increasing, but are also becoming more accessible and better functioning. These product specifications apply to the High Resolution Digital Elevation Model (HRDEM) which includes Digital Terrain Model (DTM), Digital Surface Model (DSM) and other derived data. It is part of the CanElevation Series created in support to the National Elevation Strategy implemented by NRCan. This strategy aims to increase high-resolution elevation data coverage for Canada and improve accessibility to the products. The acquisition strategy has two main components: north, and south of the productive forest line. The productive forest line is used to separate the northern and the southern parts of the country. This line is approximate and may change based on requirements"--Overview, p. 1.
Author:
Publisher:
ISBN:
Category : Biomass energy
Languages : en
Pages : 76
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Book Description
Author: John P. Wilson
Publisher: John Wiley & Sons
ISBN: 9780471321880
Category : Science
Languages : en
Pages : 522
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Book Description
Dieses Buch untersucht, welchen Einfluß Landschaftsformen, insbesondere Höhenunterschiede, auf die an der Erdoberfläche ablaufenden Prozesse haben. Wasserbewegungen, die Sonneneinstrahlung sowie die Bodenentwicklung und -erosion werden alle mehr oder minder durch die Form der Landschaftsoberfläche gesteuert. Die Anwendungsmöglichkeiten der Landschaftsanalyse sind vielfältig: Sie reichen von Studien über Wasserscheiden und Feuchtgebiete über Bodenkunde und Erosionsstudien, Landschafts- und Landnutzungsstudien bis zu geomorphologischer Forschung und regionalen und globalen Ökologiestudien. Darüber hinaus kann die Landschaftsanalyse auch zu meteorologischen Vorhersagen sowie bei Problemen mit TV- oder Radiosignalempfang eingesetzt werden. Dieses Forschungsgebiet hat in Verbindung mit den jüngsten Fortschritten auf dem Gebiet der GIS und GPS eine rasante Entwicklung durchlaufen. In diesem Band werden alle diese neuen Ansätze und Anwendungsbereiche umfassend erläutert. (y05/00)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Kim Lowell
Publisher: CRC Press
ISBN: 1482279576
Category : Technology & Engineering
Languages : en
Pages : 474
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Book Description
Spatial technologies such as GIS and remote sensing are widely used for environmental and natural resource studies. Spatial Accuracy Assessment provides state-of-the-science methods, techniques and real-world solutions designed to validate spatial data, to meet quality assurance objectives, and to ensure cost-effective project implementation.
Author: Nick Mount
Publisher: CRC Press
ISBN: 142005550X
Category : Nature
Languages : en
Pages : 424
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Book Description
The explosion of public interest in the natural environment can, to a large extent, be attributed to greater public awareness of the impacts of global warming and climate change. This has led to increased research interest and funding directed at studies of issues affecting sensitive, natural environments. Not surprisingly, much of this work has re
Author: Guy Jean-Pierre Schumann
Publisher: Frontiers Media SA
ISBN: 2889663345
Category : Science
Languages : en
Pages : 111
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Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Author:
Publisher:
ISBN:
Category : Geographic information systems
Languages : en
Pages : 744
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Book Description
This international symposium on theory and techniques for assessing the accuracy of spatial data and spatial analyses included more than ninety presentations by representatives from government, academic, and private institutions in over twenty countries throughout the world. To encourage interactions across disciplines, presentations in the general subject areas of spatial statistics, geographic information systems, remote sensing, and multidisciplinary approaches were intermixed throughout the three days of sessions.
Author: K. A. Armson
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 252
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Book Description
"All of us who are concerned about the conservation of our forests - environmental activists, forest industry representatives, scientists, Aboriginal peoples, professional foresters, policy makers, students, in fact, the full spectrum of citizens from every walk of life - can be grateful that Ken Armson has taken advantage of his lifetime career to set this history down for those who come after." - Monte Hummel, President of the World Wildlife Fund, Canada, from the Preface. Sixty-four percent of Ontario's 106.8 million hectares is covered in forest. yet the average resident who spends only limited time in the forest - hiking, skiing, camping, cottaging or on the occasional northern getaway - is still much of a mystery. In Ontario Forests, veteran forester Ken Armson draws on over 50 years experience to describe this living blanket which has shaped much of the province and stands to dictate a great deal of its future. Ontario Forests is an authoritative account of Ontario's forest regions and their history. Complete with maps, charts and full-colour photography, each forest region is located and detailed. The various tree species which make each region unique are also highlighted, and their origins of glaciation, physiographic and geological change, climactic and soil variation analyzed. Professor Armson also describes the impact of humans, from aboriginal use through lumbering to the rise of reforestation and conservation.
