Results 21 to 30 of about 4,044 (236)

Numerical simulation of wind field and sand flux in crescentic sand dunes

Scientific Reports, 2021
Sand flux is the key factor to determine the migration of sand dunes and the erosion to the surrounding environment. There are crescent-shaped sand dunes of various scales in the desert, and there are significant differences in spatial wind field and ...
Huiwen Zhang, Zhen Wu, Jing Hu, Zhiping Zhang, Bin Xiao, Jianping Ma   +5 more
doaj   +1 more source

California Bearing Ratio of some Iraqi Dune Soils

Tikrit Journal of Engineering Sciences, 2010
This paper contains the results of CBR tests that performed on compacted samples of real dune sand (cohesionless sand grains) and pseudo dune sand which is a mixture of sand sized aggregate of clay and silt.
Yousif J. Al-Shakarchi, Bushra S. Al-Busoda, Abbas J. Al-Taie   +2 more
doaj   +1 more source

Study on Sand-Accumulation Changes of Highway and Formation Mechanism of Sand Damage in Drifting Dunes Areas

Applied Sciences, 2022
After the construction of desert highway, the physiognomy changes caused by surface wind erosion and accumulation not only seriously threaten the stability of road structure, but also have a tremendous impact on the safety of the highway operation and ...
Feng Han, Chengxiang Wang, Zhibo Liu, Liangying Li, Wenhua Yin   +4 more
doaj   +1 more source

Sand Seas and Dune Fields of Egypt

Geosciences, 2020
The article reviews the state of knowledge about distribution, sizes, dynamics, and ages of all sand seas (N = 6) and dune fields (N = 10) in Egypt (1,001,450 km2). However, chronological data (Optically Stimulated Luminescence, Thermoluminescence), used
Olaf Bubenzer, Nabil S. Embabi, Mahmoud M. Ashour   +2 more
doaj   +1 more source

Nett Present Value (NPV) analysis for projection of feasibility of Coastal Sand Dune Tourism in Parangtritis Village

E3S Web of Conferences, 2019
Sand dune in Parangtritis Village has a speciality of being formed in humid climates (tropical). The initiation of Barchan Sand Dune as a new tourism based on eco-tourism has to consider many aspects to maintain sustainability of sand dune. It needs some
Dwiputra Dicky Satria, Rahmanu Yan Abdi, Tofani Atikarosa Sih, Naufal Muhammad, Arsy An Nisa Khansa Sitostratufana, Bariq Jundi Muhammad, Putri Ratih Fitria   +6 more
doaj   +1 more source

Monitoring the Dynamics of Formby Sand Dunes Using Airborne LiDAR DTMs

Remote Sensing, 2021
Coastal dunes play an important role in coastal erosion risk management, where they act as a dynamic natural sea defence line. Formby coast is part of the Sefton coast in the Northwest of England and is one of the largest and most rapidly evolving sand ...
Ahmed Mutasim Abdalla Mahmoud, Ekbal Hussain, Alessandro Novellino, Panos Psimoulis, Stuart Marsh   +4 more
doaj   +1 more source

A new GIS-based model for automated extraction of Sand Dune encroachment case study: Dakhla Oases, western desert of Egypt

Egyptian Journal of Remote Sensing and Space Sciences, 2012
The movements of the sand dunes are considered as a threat for roads, irrigation networks, water resources, urban areas, agriculture and infrastructures.
M. Ghadiry, A. Shalaby, B. Koch
doaj   +1 more source

Investigating Changes in Aeolian Sediment Transport at Coastal Dunes and Sand Trapping Fences: A Field Study on the German Coast

Journal of Marine Science and Engineering, 2020
For the restoration and maintenance of beach and dune systems along the coast, knowledge of aeolian sediment transport and its interaction with coastal protection measures is required.
Christiane Eichmanns, Holger Schüttrumpf   +1 more
doaj   +1 more source

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

Archaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken, Birgitta Eder, Sarah Bäumler, Elena Appel, Peter Fischer, Tina Georg, Federica Iannone, Lena Slabon, Timo Willershäuser, Erofili‐Iris Kolia, Andreas Vött   +10 more
wiley   +1 more source

Size distribution and structure of Barchan dune fields [PDF]

Nonlinear Processes in Geophysics, 2011
Barchans are isolated mobile dunes often organized in large dune fields. Dune fields seem to present a characteristic dune size and spacing, which suggests a cooperative behavior based on dune interaction. In Duran et al.
O. Durán, V. Schwämmle, P. G. Lind, H. J. Herrmann   +3 more
doaj   +1 more source