Results 81 to 90 of about 3,062 (203)

Geographic Information System and Geoportal "River basins of the European Russia" [PDF]

open access: yes, 2018
The geoinformation system (GIS) and Geoportal with open access "River basins of the European part of Russia" were introduced. The GIS includes the results of spatial analysis and modeling, in particular, the assessment of anthropogenic impact on river ...
Ivanov, M. A.   +4 more
core   +1 more source

Wood jam mobility in a morphologically active river in northern Chilean Patagonia

open access: yesEarth Surface Processes and Landforms, Volume 50, Issue 3, 15 March 2025.
This study examined post‐eruption wood jam mobility and channel changes in the Blanco River. Floodplain collapses led to large sediment yields. High wood jam mobility rates were reported. Larger, less compact wood jams persist in stable areas; new and missing jams are smaller and linked to deposition and erosion, respectively.
Lorenzo Martini   +4 more
wiley   +1 more source

KAZDAĞI MİLLİ PARKI’NDA ARAZİ ÖRTÜSÜ ORGANİZASYONUNU KONTROL EDEN JEOMORFOMETRİK FAKTÖRLER: BİR CBS YAKLAŞIMI

open access: yesCoğrafi Bilimler Dergisi, 2006
The objectives of the study are to determine the role of geomorphometric factors as abiotic environmental factors in the organization of landcover across the landscape in Kazdağ National Park.
Şermin TAĞIL
doaj   +1 more source

Comparison between spectral angle mapper and euclidean distance in landform mapping [PDF]

open access: yes, 2016
A classificação supervisionada por assinaturas geomorfométricas é um procedimento que pode auxiliar no mapeamento de formas de terreno a partir da utilização de medidas de similaridade ou distância.
Carvalho Júnior, Osmar Abílio de   +6 more
core   +1 more source

What is the Relationship Between Plant Trait Diversity and Geodiversity? A Plot‐Based, Pan‐European Analysis

open access: yesGlobal Ecology and Biogeography, Volume 33, Issue 11, November 2024.
ABSTRACT Aim Heterogeneity of the Earth's abiotic surface and subsurface (geodiversity) is increasingly recognised as an important driver of biodiversity. Theoretically, species' traits should match to abiotic conditions in the local environment. Here, we test this for the first time at a continental extent by analysing the relationships between ...
Grant Vernham   +3 more
wiley   +1 more source

Assessing Glacial Modification of Bedrock Valleys in the Sierra Nevada, California, Using a Novel Approach [PDF]

open access: yes, 2016
This study employed a semi-automated approach to evaluate the degree of glacial modification of bedrock valleys in the Sierra Nevada, California, by quantifying morphological variability in cross-sectional form assessed from ~27,000 locations throughout ...
Zimmer, Paul D.
core   +1 more source

Geomorphometry - diversity in quantitative surface analysis

open access: yesProgress in Physical Geography, 2000
A widening variety of applications is diversifying geomorphometry ( digital terrain modelling), the quantitative study of topography. An amalgam of earth science, mathematics, engineering and computer science, the discipline has been revolutionized by the computer manipulation of gridded terrain heights, or digital elevation models (DEMs).
openaire   +2 more sources

Morphology of Barchan Dunes on Earth and Mars: Classification and Scale‐Invariance

open access: yesJournal of Geophysical Research: Planets, Volume 129, Issue 10, October 2024.
Abstract Morphological characteristics were measured for barchan dunes on Earth (2,686 dunes in 30 barchan fields) and Mars (720 dunes in 10 barchan fields) using satellite images. The data were used to (a) develop a new barchan classification system; (b) compare characteristics of barchans on Earth and Mars; and (c) assess whether barchans, in bulk ...
Douglas J. Sherman   +4 more
wiley   +1 more source

Prioritization of soil erosion-prone sub-watersheds using geomorphometric and statistical-based weighted sum priority approach in the middle Omo-Gibe River basin, Southern Ethiopia

open access: yesInternational Journal of Digital Earth
Soil erosion, a major factor contributing to land degradation, poses significant environmental challenges across sub-Saharan Africa, including Ethiopia. This study identifies erosion-prone sub-watersheds in southern Ethiopia's middle Omo-Gibe River basin
Abera Abiyo Dofee   +2 more
doaj   +1 more source

SLiX: A GIS Toolbox to Support Along-Stream Knickzones Detection through the Computation and Mapping of the Stream Length-Gradient (SL) Index

open access: yesISPRS International Journal of Geo-Information, 2020
The stream length-gradient (SL) index is widely used in geomorphological studies aimed at detecting knickzones, which are extensive along-stream deviations from the typical concave-up shape assumed for stream longitudinal profiles at steady-state ...
Daniela Piacentini   +4 more
doaj   +1 more source

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