Results 81 to 90 of about 590 (205)
Morphodynamics of barchan and transverse dunes using a cellular automaton model
, 2010 International audienceWe analyze the morphodynamics of bedforms produced under unidirectional flow conditions by a lattice gas cellular automaton designed to study sediment transport.
Zhang, D. +5 more
core +1 more source
Pioneering Evidence of the Dynamics of Water Vapor and CO2 Fluxes in Sahara Desert Soils
Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 9, September 2025.Abstract Soil CO2 flux (Fc) is a major component of the global carbon balance. It is often overlooked in arid regions as low soil moisture restricts microbial and root respiration. Studies in the last decades challenge this paradigm, reporting an anomalous diurnal cycle of Fc in arid regions. This diurnal cycle is thought to be initiated by geochemical
N. Bekin +5 more
wiley +1 more source
Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement), 2017 Barchan types of sand dune region (barchanoid dunes) is a geographic landmark that is formed by the activity of wind that precipitated to form resembles a crescent moon. In general, sandbanks formed in the desert area, however, but uniquely, it is formed
Djaka Marwasta
doaj +1 more source
Dynamic Evaluation of Barchans in Band-e-Rig Kashan in the Period 2013 to 2019 [PDF]
کاوشهای جغرافیایی مناطق بیابانی, 2022 IntroductionWind erosion and the formation of sand dunes are common phenomena in many arid regions around the world. More than 100 types of sand dunes have been classified by geomorphologists based on shape and size criteria (Lancaster, 1995). One of the
ghasem lorestani, Ali Shahriar
doaj
Slowdown of Dune Migration in East Asia's Inland Deserts: A 35‐Year Response to Wind Stilling
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract Global terrestrial stilling, the recent decrease in near‐surface wind speeds, has significant environmental impacts, including reduced dust storms and vegetation recovery in East Asia's drylands. However, direct evidence of stilling effects on sand dunes is limited due to the lack of long‐term observational data.
Li Wang +7 more
wiley +1 more source
Mean sediment residence time in barchan dunes
, 2014 International audienceWhen a barchan dune migrates, the sediment trapped on its lee side is later mobilized when exposed on the stoss side. Then sand grains may undergo many dune turnover cycles before their ejection along the horns, but the amount of ...
Zhang, D. +3 more
core +1 more source
Miscellanea Geographica: Regional Studies on Development, 2004 Research conducted on the Jarangiyn els field on the Gobi desert in Mongolia took place during the transformation of barchans resulting from the changes in wind direction.
Potocki Mariusz, Angiel Piotr
doaj +1 more source
Investigation of a wind-packing event in Queen Maud Land, Antarctica [PDF]
The Cryosphere, 2018 Surface snow in polar and mountainous regions is often mobile and this mobility influences surface mass balance and isotopic composition before final deposition, which is poorly understood thus far.
C. G. Sommer +7 more
doaj +1 more source
, 2023 Here is the data used in the review article - Local similarity between aeolian barchan dunes and their downsized counterparts in water tunnel. The original images of several subaqueous experiments shown in this review and the raw data for the sand ...
Lin, Y (via Mendeley Data)
core +1 more source
Reply to “Comment on ‘Minimal size of a barchan dune’ ”
Physical Review E, 2007 We reply to the comment by Andreotti and Claudin (submitted to Phys. Rev. E, arXiv:0705.3525) on our paper ``Minimal Size of a Barchan Dune'' [Phys. Rev. E {\bf{75,}} 011301 (2007)]. We show that the equations of the dune model used in our calculations are self-consistent and effectively lead to a dependence of the minimal dune size on the wind speed ...
Parteli, E.J.R. (author) +2 more
openaire +3 more sources