Estimation of Concentration and Load of Suspended Bed Sediment in a Large River by Means of Acoustic Doppler Technology
| العنوان: | Estimation of Concentration and Load of Suspended Bed Sediment in a Large River by Means of Acoustic Doppler Technology |
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| المؤلفون: | F. Latosinski, Ricardo Nicolas Szupiany, Mario L. Amsler, Massimo Guerrero, Carlos M. García |
| المساهمون: | Francisco, G. Latosinski, Ricardo, N. Szupiany, Carlos, M. García, Massimo, Guerrero, Mario, L. Amsler |
| المصدر: | Journal of Hydraulic Engineering. 140 |
| بيانات النشر: | American Society of Civil Engineers (ASCE), 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | BACKSCATTER, Flow measurement, Ciencias de la Tierra y relacionadas con el Medio Ambiente, symbols.namesake, DOPPLER SYSTEMS, SEDIMENT LOADS, BED LOADS, Water Science and Technology, Civil and Structural Engineering, SUSPENDED SEDIMENT, Hydrology, BED MATERIALS, CONCENTRATED LOADS, Mechanical Engineering, Oceanografía, Hidrología, Recursos Hídricos, Parana River, SAMPLING, Sampling (statistics), Sediment, RIVER SYSTEMS, SUSPENDED LOADS, ACOUSTIC TECHNIQUES, SUSPENDED SEDIMENT CONCENTRATION, symbols, Environmental science, ACOUSTIC ADCP OBSERVATIONS, FLOW MEASUREMENT, Meteorología y Ciencias Atmosféricas, SEDIMENT TRANSPORT, Doppler effect, Sediment transport, CIENCIAS NATURALES Y EXACTAS |
| الوصف: | The standard experimental methods used for sampling suspended loads in large rivers are usually time consuming, unsafe, rather expensive, and have a limited spatial resolution. Acoustic Doppler current profilers (ADCPs), usually applied to measure the flow discharge, may also be used to assess the suspended sediment concentration by analyzing the backscattering acoustic strength. Though important efforts have been dedicated to test this method, results are not as reliable as engineering practices require, especially in large fluvial systems. In this paper, the correlation between the corrected backscatter from a 1,200kHz ADCP and the suspended concentration from a depthintegrated sampler is presented and discussed. Despite the assumptions required to utilize this method (i.e., monosized grain and homogeneous vertical concentration), the results showed acceptable differences when they were compared with traditional methods. An evaluation of the backscatter and attenuation of sound produced by fine and coarse material is presented. Finally, the total suspended load of bed sediment is assessed using moving-boat ADCP measurements and compared with results from the corresponding standard method. Differences are at most 46%. Fil: Latosinski, Francisco Guillermo. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Szupiany, Ricardo Nicolas. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Garcia Rodriguez, Carlos Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.exactas Físicas y Naturales. Departamento de Hidraulica; Argentina Fil: Guerrero, Massimo. Universidad de Bologna; Italia Fil: Amsler, Mario Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina |
| وصف الملف: | STAMPA; application/pdf |
| تدمد: | 1943-7900 0733-9429 |
| DOI: | 10.1061/(asce)hy.1943-7900.0000859 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::817f80deb3a5e491193f9f870040cbaf https://doi.org/10.1061/(asce)hy.1943-7900.0000859 |
| Rights: | RESTRICTED |
| رقم الانضمام: | edsair.doi.dedup.....817f80deb3a5e491193f9f870040cbaf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19437900 07339429 |
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| DOI: | 10.1061/(asce)hy.1943-7900.0000859 |