Results 21 to 30 of about 3,037 (201)

Physical geomorphometry

open access: yes, 2023
Physical geomorphometry is introduced as a specific subfield of geomorphometry, investigating the land surface in terms of the basic principles, practices, and concepts of physics. The interconnected system of geomorphometric energies gives meaning to the summation, difference and ratio of basic geomorphometric variables.
Minár, Jozef, Evans, Ian S.
openaire   +1 more source

Characterising the ocean frontier : a review of marine geomorphometry [PDF]

open access: yes, 2016
Geomorphometry, the science that quantitatively describes terrains, has traditionally focused on the investigation of terrestrial landscapes. However, the dramatic increase in the availability of digital bathymetric data and the increasing ease by ...
Dolan, Margaret F. J.   +3 more
core   +1 more source

On the uncertainty of stream networks derived from elevation data: the error propagation approach [PDF]

open access: yes, 2010
DEM error propagation methodology is extended to the derivation of vector-based objects (stream networks) using geostatistical simulations. First, point sampled elevations are used to fit a variogram model.
Hengl, T.   +2 more
core   +2 more sources

Charting the Course for Future Developments in Marine Geomorphometry: An Introduction to the Special Issue

open access: yesGeosciences, 2018
The use of spatial analytical techniques for describing and classifying seafloor terrain has become increasingly widespread in recent years, facilitated by a combination of improved mapping technologies and computer power and the common use of Geographic
Vanessa Lucieer   +2 more
doaj   +1 more source

Uncertainties Related to Scale and Sampling Window Size in Defining Macro Landforms

open access: yesCoğrafya Dergisi, 2023
This study focuses on the statistical significance of sampling window sizes, which are used to define macro landforms and the differences they cause in definitions.
Neslihan Dal, Tolga Görüm
doaj   +1 more source

Towards the optimal Pixel size of dem for automatic mapping of landslide areas [PDF]

open access: yes, 2017
Determining appropriate spatial resolution of digital elevation model (DEM) is a key step for effective landslide analysis based on remote sensing data. Several studies demonstrated that choosing the finest DEM resolution is not always the best solution.
Borkowski, A.   +2 more
core   +3 more sources

Land surface diversity: A geomorphodiversity index of Italy

open access: yesEarth Surface Processes and Landforms, Volume 48, Issue 15, Page 3025-3040, December 2023., 2023
Geomorphodiversity refers to the variety of landforms and morphological processes characterizing the landscape. The definition of an index to quantify geomorphodiversity is a relevant step for Earth science, land use management, geoheritage conservation, and helps describing the interaction between abiotic and biotic compartments.
Martina Burnelli   +2 more
wiley   +1 more source

Classification of seabed landforms on continental and island shelves

open access: yesFrontiers in Marine Science, 2023
The increasing availability and quality of high-resolution bathymetry data has led to a growing need for automated classification approaches to extract seabed features and better understand our ever-changing and complex seascapes.
Michelle Linklater   +2 more
doaj   +1 more source

Spectral filtering as a method of visualising and removing striped artefacts in digital elevation data [PDF]

open access: yes, 2008
Spectral filtering was compared with traditional mean spatial filters to assess their ability to identify and remove striped artefacts in digital elevation data. The techniques were applied to two datasets: a 100 m contour derived digital elevation model
Albani   +51 more
core   +1 more source

Improved Automatic Classification of Litho-Geomorphological Units by Using Raster Image Blending, Vipava Valley (SW Slovenia)

open access: yesRemote Sensing, 2023
Automatic landslide classification based on digital elevation models has become a powerful complementary tool to field mapping. Many studies focus on the automatic classification of landslides’ geomorphological features, such as their steep main scarps ...
Galena Jordanova, Timotej Verbovšek
doaj   +1 more source

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