Journal ArticleDOI
Automated mapping of Hammond's landforms
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TLDR
An automated method for mapping Hammond's landforms over large landscapes using digital elevation data found general agreement in landform patterns mapped by the manual and the automated approaches, and very close agreement in characterization of local topographic relief.Abstract:
We automated a method for mapping Hammond's landforms over large landscapes using digital elevation data. We compared our results against Hammond's published landform maps, derived using manual interpretation procedures. We found general agreement in landform patterns mapped by the manual and the automated approaches, and very close agreement in characterization of local topographic relief. The two approaches produced different interpretations of intermediate landforms, which relied upon quantification of the proportion of landscape having gently sloping terrain. This type of computation is more efficiently and consistently applied by computer than human. Today's ready access to digital data and computerized geospatial technology provides a good foundation for mapping terrain features, but the mapping criteria guiding manual techniques in the past may not be appropriate for automated approaches. We suggest that future efforts center on the advantages offered by digital advancements in refining an approach to better characterize complex landforms.read more
Citations
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Journal ArticleDOI
Geomorphons — a pattern recognition approach to classification and mapping of landforms
TL;DR: In this paper, the concept of geomorphon (geomorphologic phonotypes) is introduced for classification and mapping of landform elements from a DEM based on the principle of pattern recognition rather than differential geometry.
Journal ArticleDOI
Modeling global Hammond landform regions from 250‐m elevation data
Deniz Karagulle,Charlie Frye,Roger Sayre,Sean Breyer,Peter Aniello,Randy Vaughan,Dawn J. Wright +6 more
TL;DR: An improved algorithm was developed for the regional landform modeling that incorporated a profile parameter for the delineation of tablelands, and accommodated negative elevation data values, and allowed neighborhood analysis window (NAW) size to vary between parameters.
Journal ArticleDOI
An integral image approach to performing multi-scale topographic position analysis
TL;DR: In this paper, an integral image-based approach was used to measure the common relative topographic position metric deviation from mean elevation (DEV ), which was applied to a large-scale digital elevation model (DEM) of an extensive and heterogeneous region in eastern North America.
Journal ArticleDOI
A spatial classification and database for management, research, and policy making: The Great Lakes aquatic habitat framework
Lizhu Wang,Catherine M. Riseng,Lacey A. Mason,Kevin E. Wehrly,Edward S. Rutherford,James E. McKenna,Chris Castiglione,Lucinda B. Johnson,Dana M. Infante,Scott P. Sowa,Mike Robertson,Jeff Schaeffer,Mark Khoury,John Gaiot,Thomas Hollenhorst,Colin N. Brooks,Mark Coscarelli +16 more
TL;DR: In this paper, the authors developed a spatial classification framework and database called the Great Lakes Aquatic Habitat Framework (GLAHF), which consists of catchments, coastal terrestrial, coastal margin, nearshore, and offshore zones that encompass the entire Great Lakes Basin.
Journal ArticleDOI
Landscape similarity, retrieval, and machine mapping of physiographic units
TL;DR: In this article, the authors introduce landscape similarity, a numerical measure that assesses affinity between two landscapes on the basis of similarity between the patterns of their constituent landform elements, which can yield answers to a query in real time, enabling a highly effective means to explore large topographic datasets.
References
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Journal ArticleDOI
Ecoregions of the Conterminous United States
TL;DR: A map of ecoregions of the conterminous United States has been compiled to assist managers of aquatic and terrestrial resources in understanding the regional patterns of the realistically attainable quality of these resources.
Journal ArticleDOI
Landform Effects on Ecosystem Patterns and Processes
TL;DR: In this article, the history of geomorphic processes may be expressed directly in the composition and structure of vegetation, where geomorphic events and vegetation develop together, and the geomorphic process operating before the establishment of existing vegetation, or those subtly coexisting with the vegetation, may have their greatest influence on vegetation through controlling patterns of soil properties across a landscape, as in toposequences
Journal ArticleDOI
Shallow landslide hazard assessment using a physically based model and digital elevation data
TL;DR: In this article, a model for the analysis of topographic influence on shallow landslide initiation is applied to an experimental mountain basin where high-resolution digital elevation data are available: the Cordon catchment (5 km2).
Journal ArticleDOI
Analysis of properties in land form geography: an application to broad-scale land form mapping
TL;DR: In this paper, the authors present an application to broad scale land form mapping in the context of land form geomorphology, and discuss the role of experts in the application of this technique.
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