Results 21 to 30 of about 1,253 (211)

Experimental data on barchan-barchan interaction with bidisperse grains

open access: yes, 2021
This is part of the data concerning experiments on barchan-barchan interaction with bidisperse grains. Here, you find images of all patterns, animated movies and Matlab codes.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST
Righi Assis, W (via Mendeley Data)   +1 more
core   +1 more source

New method for measurement of barchans parameters Case study: Lut desert, Iran [PDF]

open access: yesDesert, 2017
This research has attempted to measure the parameters of barchan dunes as one of the desert landforms. This has been conducted by a field survey using cartographic techniques. In the field, two barchan dunes have completely been surveyed by total station
M. Maghsoudi   +3 more
doaj   +1 more source

Composition of raw mixes for portland cement clinkers using andesic basalt rock [PDF]

open access: yesE3S Web of Conferences, 2023
This article studies, calculation of compositions of raw mixes and development of clinker production technology on the basis of using local raw materials of Karakalpakstan, is an effective solution to the problem of covering the needs of the construction
Orazimbetova Gulistan   +2 more
doaj   +1 more source

A Simple Agent‐Based Model That Reproduces All Types of Barchan Interactions

open access: yesGeophysical Research Letters, 2023
We introduce a novel agent‐based model for simulating interactions between migrating barchan dunes. A new two‐flank representation of barchans allows modeling of bedform asymmetries that are intrinsic to collision dynamics but have not been explored ...
Dominic T. Robson, Andreas C. W. Baas
doaj   +1 more source

Minimal size of a barchan dune [PDF]

open access: yesPhysical Review E, 2007
Barchans are dunes of high mobility which have a crescent shape and propagate under conditions of unidirectional wind. However, sand dunes only appear above a critical size, which scales with the saturation distance of the sand flux [P. Hersen, S. Douady, and B. Andreotti, Phys. Rev. Lett. {\bf{89,}} 264301 (2002); B. Andreotti, P.
Parteli, Eric J. R.   +2 more
openaire   +8 more sources

The Effects of Wind Regime and Sand Supply on the Coexistence of Barchans and Linear Dunes in China’s Qaidam Basin

open access: yesFrontiers in Earth Science, 2022
Dunes composed of granular materials are present in deserts and other environments, such as subaqueous environments and environments on other planets, with very different time and length scales for their evolution.
Fang Ma, Fang Ma, Ping Lü, Min Cao
doaj   +1 more source

Morphometrics of barchan dunes on Mars

open access: yes, 2021
Global morphometrics of barchan dunes on Mars, as obtained by an artificial neural ...
Lior Rubanenko (6589988)
core   +1 more source

Global Surface Winds and Aeolian Sediment Pathways on Mars From the Morphology of Barchan Dunes

open access: yesGeophysical Research Letters, 2023
In the absence of consistent meteorological data on Mars, the morphology of dunes can be employed to study its atmosphere. Specifically, barchan dunes, which form under approximately unimodal winds, are reliable proxies for the dominant wind directions ...
L. Rubanenko   +6 more
doaj   +1 more source

The role of stereographic studies on the orientation of Suran`s barchans migration risk in Baluchestan [PDF]

open access: yesمخاطرات محیط طبیعی, 2022
The sand dunes of the study area are located downstream of Routack watershed, 40 km west of Saravan city (Baluchestan province, Iran) and in the northern margin of the agricultural lands of the region. Wind velocity data (direction and speed) of Saravan,
َAbdolhamid Dehvari   +2 more
doaj   +1 more source

Understanding snow bedform formation by adding sintering to a cellular automata model [PDF]

open access: yesThe Cryosphere, 2019
Cellular-automata-based modelling for simulating snow bedforms and snow deposition is introduced in this study. The well-known ReSCAL model, previously used for sand bedforms, is adapted for this purpose by implementing a simple sintering mechanism.
V. Sharma   +4 more
doaj   +1 more source

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