Results 21 to 30 of about 937 (213)

Analysis of Barchan morphology in the west of Loot desert using morphometric features [PDF]

open access: yesکاوش‌های جغرافیایی مناطق بیابانی, 2018
In this article, we analyzed the morphology of barchans (crescentic sand dunes) using morphometric features of seven components of this landform in the west of the Loot desert near Pashoeyeh village. The components were height, width, length of the right
Mehran Maghsoudi   +4 more
doaj   +1 more source

Study and Evolution of the Dune Field of La Banya Spit in Ebro Delta (Spain) Using LiDAR Data and GPR

open access: yesRemote Sensing, 2021
La Banya spit, located at the south of the River Ebro Delta, is a sandy formation, developed by annexation of bars forming successive beach ridges, which are oriented and modeled by the eastern and southern waves.
Inmaculada Rodríguez-Santalla   +9 more
doaj   +1 more source

Analysis of sand dunes to determine wind direction and detect sand source sites (case study: Khartooran Erg, Iran) [PDF]

open access: yesDesert, 2007
Wind regime and sand grain size are two of the factors that determine the morphology and dynamics of sand dunes in desert areas. Regarding the importance of wind effects on sand dunes especially in Iran, in this study, Khartooran Erg was analyzed to ...
N. Mashhadi   +4 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

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

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)
core   +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

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

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