Journal ArticleDOI
Digital terrain modelling and industrial surface metrology — converging crafts
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This paper introduces terrain modelling and compares it with metrology, noting their differences and similarities and one of the many issues common to both disciplines.Abstract:
Quantitative characterisation of surface form, increasingly from digital 3-D height data, is cross-disciplinary and can be applied at any scale. Thus, separation of industrial-surface metrology from its Earth-science counterpart, (digital) terrain modelling, is artificial. Their growing convergence presents an opportunity to develop in surface morphometry a unified approach to surface representation. This paper introduces terrain modelling and compares it with metrology, noting their differences and similarities. Examples of potential redundancy among parameters illustrate one of the many issues common to both disciplines.read more
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Spatial analysis of landscapes: concepts and statistics
TL;DR: In this paper, the authors discuss how spatial structure due to ecological spatial processes and spatial dependence affects spatial statistics, landscape metrics, and statistical modeling of the species-environment correlation, and identify conceptual and statistical challenges that need to be addressed for adequate spatial analysis of landscapes.
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Using Lidar Bathymetry and Boosted Regression Trees to Predict the Diversity and Abundance of Fish and Corals
TL;DR: In this article, seven different morphometrics were applied to a 4 m resolution bathymetry grid and then quantified at multiple spatial scales (i.e., 15, 25, 50, 100, 200 and 300 m radii) using a circular moving window analysis.
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Roughness in the Earth Sciences
TL;DR: There has been a proliferation of methods of quantifying surface roughness in the Earth Sciences, with the aim of facilitating a more systematic exchange of roughness formulations as discussed by the authors, however, a number of issues surround the definition of the term roughness.
OtherDOI
A bibliography of terrain modeling (geomorphometry), the quantitative representation of topography: supplement 4.0
TL;DR: In this paper, the authors add over 1600 annotated references on the numerical characterization of topography, terrain modeling or geomorphometry, to a 1993 literature review and its first three updates.
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Geomorphic Change Analysis Using ASTER and SRTM Digital Elevation Models in Central Massachusetts, USA
TL;DR: In this article, the authors examined the capacity of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Shuttle Radar Topography Mission (SRTM) digital elevation models (DEM) to measure human-induced alterations in drumlin landforms and assesses the impact of land cover on DEM accuracy.
References
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Journal ArticleDOI
Erosional development of streams and their drainage basins; hydrophysical approach to quantitative morphology
TL;DR: The most important single factor involved in erosion phenomena and, in particular in connection with the development of stream systems and their drainage basins by aqueous erosion is called crossgrading.
Journal ArticleDOI
Digital terrain modelling: A review of hydrological, geomorphological, and biological applications
TL;DR: In this article, the authors describe elevation data sources, digital elevation model structures, and the analysis of digital elevation data for hydrological, geomorphological, and biological applications.
Book
Fractal River Basins: Chance and Self-Organization
TL;DR: In this paper, the authors present a view of river basins and show that the fractal characteristics of these basins are related to the optimal channel networks of a self-organized fractal river network.
Journal ArticleDOI
Shape Transition of Germanium Nanocrystals on a Silicon (001) Surface from Pyramids to Domes
Gilberto Medeiros-Ribeiro,Alexander Bratkovski,Theodore I. Kamins,Douglas A. A. Ohlberg,R. Stanley Williams +4 more
TL;DR: In situ scanning tunneling microscopy revealed that the smaller square-based pyramids transform abruptly during growth to significantly larger multifaceted domes, and that few structures with intermediate size and shape remain.