Results 11 to 20 of about 47,667 (263)

Drainage network response to Arctic warming. [PDF]

open access: yesNat Commun, 2023
Rapid Arctic warming may increase erosion and stream channel formation, which alters the flux of sediments, carbon, and nutrients in these sensitive ecosystems. Yet, understanding landscape change is hampered by a lack of predictive tools applicable to permafrost settings.
Rowland JC.
europepmc   +4 more sources

Improving the dimensioning of closed collecting and drainage network of drainage systems

open access: yesМеліорація і водне господарство, 2021
Research relevance. Climatic changes determine the need to ensure a high productivity of drained lands through the use of appropriate adaptive measures for regulating and accumulating moisture in the soil.
L. R. Volk, O. V. Bezusyak, P. P. Volk
doaj   +3 more sources

Variational analysis of landscape elevation and drainage networks [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
Landscapes evolve towards surfaces with complex networks of channels and ridges in response to climatic and tectonic forcing. Here, we analyse variational principles giving rise to minimalist models of landscape evolution as a system of partial differential equations that capture the essential dynamics of sediment and water ...
Milad Hooshyar   +2 more
openaire   +4 more sources

An Innovative Approach for Drainage Network Sizing [PDF]

open access: yesWater, 2015
In this paper, a procedure for the optimal design of rural drainage networks is presented and demonstrated. The suggested approach, exploring the potentialities offered by heuristic methods for the solution of complex optimization problems, is based on the use of a Genetic Algorithm (GA), coupled with a steady and uniform flow hydraulic module.
Luca Cozzolino   +4 more
openaire   +4 more sources

Examining the Stream Threshold Approaches Used in Hydrologic Analysis

open access: yesISPRS International Journal of Geo-Information, 2018
The stream threshold is a user-defined and important parameter that directly affects the drainage network and basin boundaries that would be obtained as a result of hydrological analysis.
İbrahim Murat Ozulu, Türkay Gökgöz
doaj   +1 more source

A new method of drainage network extraction using SAR radar images: a case study of Djanet (Algeria)

open access: yesJournal of Taibah University for Science, 2021
An oriented, connected, acyclic graph can be used to represent a hydraulic network. We can consider the network as a set of arcs and nodes. Our research work entails extracting a drainage network from satellite images by preprocessing the data to have ...
Zineb Nougrara, Kamel Hachemi
doaj   +1 more source

Geomorphology of the Sowie Mountains (Sudetes, SW Poland) – Landform patterns and anthropogenic impact

open access: yesGeographia Polonica, 2023
The Sowie Mountains in the central part of the Sudetes range are an under-researched area in terms of geomorphology, despite their potential representativeness for a large number of terrains within the Bohemian Massif, built of metamorphic bedrock. Apart
Piotr Migoń   +2 more
doaj   +1 more source

A Drainage Network with Dependence and the Brownian Web

open access: yesJournal of Statistical Physics, 2022
We study a system of coalescing random walks on the integer lattice $\mathbb{Z}^{d}$ in which the walk is oriented in the $d$-th direction and follows certain specified rules. We first study the geometry of the paths and show that, almost surely, the paths from a graph consisting of just one tree for dimentions $d=2,3$ and infinitely many disjoint ...
Azadeh Parvaneh   +2 more
openaire   +3 more sources

EVALUATION OF NON-POINT SOURCE HEAVY METAL POLLUTION ON A DRAINAGE NETWORK OUTLET [PDF]

open access: yesJournal CleanWAS
This study assessed the impact of road runoff on the ecological risk of heavy metals in the Eagle Island River. Runoff samples were collected from a drainage network of secondary and primary drains and an outlet.
Erewari Ukoha-Onuoha, Charity Chisa Dike
doaj   +1 more source

Stages of river network formation of the Upper Kama River basin in the Pleistocene

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2020
River network formation in the northeast part of the East European Plain was discussed. The relevance of the study is due to a lack of knowledge about the functioning and development of the Upper Kama River basin in the Pleistocene. Most of the available
N.N. Nazarov, S.V. Kopytov
doaj   +1 more source

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