Special Issue "Advances in Sediment Transport Research and Engineering in Arid and Semi-Arid Regions"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Erosion and Sediment Transport".

Deadline for manuscript submissions: 31 December 2020.

Special Issue Editor

Prof. Jennifer G. Duan
Website
Guest Editor
Department of Civil and Architectural Engineering and Mechanics, University of Arizona, Tucson, AZ 85721, USA
Interests: hydraulics and sediment transport in turbulence flow field, and computational simulation of flow and sediment transport in rivers. Specific topics include two dimensional computational simulation of flow and sediment transport in unsteady sediment laden flow, reservoir sedimentation, mitigation of watershed erosion, scour around bridges and structures, urban flooding simulation, and contaminant transport in canal sediment

Special Issue Information

Dear Colleagues:

Over 50% of the world has an arid and/or semi-arid climate, receiving less than 500 mm of precipitation per year. And, the arid and semi-arid regions contains the homes of more than 50% of the world’s populations. Human settlements demand water for households and industrial and agricultural services. Dams, reservoirs, canals, and ponds are essential infrastructures for water supply and delivery. Rainfalls are scarce in this region, but soil loss and land surface degradation are severe because these rainfall events have a high intensity in short duration. 

To mitigate soil loss and land surface erosion, intensive research has been conducted in three areas:

(1) to quantify sediment yield and sediment transport from overland and channel flow

(2) to evaluate the impact of landuse and land cover (e.g., urban, agriculture, pasture) on soil erosion

(3) to assess the benefits of erosion control measures (e.g., check dams, natural engineering)

This Special Issue aims to publish recent advances in sediment transport research and engineering that contribute to reduce soil erosion for achieving sustainable land management in arid and semi-arid regions. I cordially invite original research articles of laboratory and field experimental studies, the development and application of computational models, and case studies of watershed erosion and engineering BMPs. Fundamental research including sediment transport mechanism, interaction between vegetation and sediment transport, as well as applied researches, case studies and applications of computational models (e.g., SWAT, KINEROS) are also welcome.

Prof. Jennifer G. Duan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Arid and semi-arid region
  • Soil erosion
  • Sediment transport
  • Watershed erosion modeling
  • Reservoir sedimentation
  • Vegetation on soil loss

Published Papers (1 paper)

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Research

Open AccessArticle
Bed-Load Collision Sound Filtering through Separation of Pipe Hydrophone Frequency Bands
Water 2020, 12(7), 1875; https://doi.org/10.3390/w12071875 - 30 Jun 2020
Abstract
Bed-load discharge of a river can be monitored by indirectly measuring the acoustic pulses generated when the bed load collides with a steel pipe installed on the riverbed (i.e., pipe hydrophone measurement). However, existing methods used for filtering pulses from acoustic signals reflect [...] Read more.
Bed-load discharge of a river can be monitored by indirectly measuring the acoustic pulses generated when the bed load collides with a steel pipe installed on the riverbed (i.e., pipe hydrophone measurement). However, existing methods used for filtering pulses from acoustic signals reflect a combination of bed-load collision frequency bands, thereby limiting characterization capabilities. This study proposes an improved filtering method that separates and efficiently examines frequency bands that are highly correlated with bed-load collision characteristics. Herein, an experimental hydraulic model and bed-load collision sound-measurement system were constructed, and bed-load collision experiments were repeatedly performed for collecting acoustic data using a pipe hydrophone. Fast Fourier Transform analysis was performed on data to select the specific frequency bands and pressures reflecting the bed-load particle size. Furthermore, a bandpass method to examine bed-load collision sounds is also presented herein. Results indicate that in comparison with existing filtering methods, the proposed bandpass method yields higher detection rates under bed-load conditions of low flow rate and small particle size, thereby demonstrating its enhanced effectiveness. Full article
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