试验推移质输运公式:利用多波束回声测深仪(Mbes)获得的推移质产额数据对阿穆尔河下游进行的实例研究

Q2 Agricultural and Biological Sciences
O. Petrovskaya, A. Maltsev
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引用次数: 1

摘要

推移质计算方法的发展直接取决于测量数据的可靠性。最可靠的测量数据仍然是通过体积法观察水库、取土场、沟渠等的填充情况时获得的数据。然而,这些数据是最罕见的。本文根据对阿穆尔河沟渠填筑过程的观测数据,对多种推移质计算方法进行了比较。这些观测是在2018年7月21日至8月22日的夏季洪水期间使用多波束回声测深仪进行的。在这段时间里,进行了5次调查,允许有4个计算周期来确定推移质产量。在不同计算垂直方向上的测量的总数是108。这些数据用于验证80个推移质公式。考虑了四种方法:河床形态法、临界流速法、临界流量法和回归法。床型方法显示出最大的准确性:26个公式中有17个公式的误差小于60%。对于其他56种方法,只有5个公式的误差小于60%,它们都符合临界速度法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Testing Bed Load Transport Formulas: A Case Study Of The Lower Amur Using Bed Load Yield Data Obtained With Multi-Beam Echo-Sounders (Mbes)
The development of bed load calculation methods directly depends on the reliability of the measurement data. The most reliable measurement data remains the data obtained by the volumetric method when observing the filling of reservoirs, borrows, ditches etc. Nevertheless these data are the rarest. In this paper on the base of the data obtained when observing the process of filling of a ditch across the Amur River a comparison of a number of bed load calculation methods is performed. The observations were carried out with a multi-beam echo-sounder during summer floods of 2018, from 21st of July to 22nd of August. Over this time 5 surveys were performed, that allows to have 4 calculation periods for determining bed load yield. The total number of the measurements at different calculation verticals is 108. These data are used for verification of 80 bed load formulas. Four methodological approaches are considered: bed form approach, critical velocity approach, critical water discharge approach and regression approach. The bed form approach has shown the greatest accuracy: 17 formulas out of 26 gave the error less than 60%. For the other 56 methods which were considered only 5 formulas showed the error less than 60%, all of them correspond to the critical velocity approach.
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来源期刊
Geography, Environment, Sustainability
Geography, Environment, Sustainability Social Sciences-Geography, Planning and Development
CiteScore
2.50
自引率
0.00%
发文量
37
审稿时长
12 weeks
期刊介绍: Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is founded by the Faculty of Geography of Lomonosov Moscow State University, The Russian Geographical Society and by the Institute of Geography of RAS. It is the official journal of Russian Geographical Society, and a fully open access journal. Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” publishes original, innovative, interdisciplinary and timely research letter articles and concise reviews on studies of the Earth and its environment scientific field. This goal covers a broad spectrum of scientific research areas (physical-, social-, economic-, cultural geography, environmental sciences and sustainable development) and also considers contemporary and widely used research methods, such as geoinformatics, cartography, remote sensing (including from space), geophysics, geochemistry, etc. “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is the only original English-language journal in the field of geography and environmental sciences published in Russia. It is supposed to be an outlet from the Russian-speaking countries to Europe and an inlet from Europe to the Russian-speaking countries regarding environmental and Earth sciences, geography and sustainability. The main sections of the journal are the theory of geography and ecology, the theory of sustainable development, use of natural resources, natural resources assessment, global and regional changes of environment and climate, social-economical geography, ecological regional planning, sustainable regional development, applied aspects of geography and ecology, geoinformatics and ecological cartography, ecological problems of oil and gas sector, nature conservations, health and environment, and education for sustainable development. Articles are freely available to both subscribers and the wider public with permitted reuse.
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