本文關(guān)鍵詞： ADCP 回波強(qiáng)度 懸移質(zhì) 含沙量 測(cè)量　出處：《水利水電技術(shù)》2017年01期 　論文類(lèi)型：期刊論文

【摘要】：通過(guò)簡(jiǎn)要介紹利用聲學(xué)多普勒水流剖面儀(ADCP)回波強(qiáng)度估算懸移質(zhì)含沙量的基本原理,結(jié)合梧州水文站的應(yīng)用實(shí)例,利用ADCP的回波強(qiáng)度數(shù)據(jù)和現(xiàn)場(chǎng)采集的水樣含沙量建立相關(guān)關(guān)系,根據(jù)相關(guān)關(guān)系由回波強(qiáng)度反演估算的水體懸移質(zhì)含沙量驗(yàn)證了利用ADCP的回波強(qiáng)度估算懸移質(zhì)含沙量的可行性。應(yīng)用于梧州水文站的實(shí)踐表明,左河道推算的系統(tǒng)誤差為-0.1%,右河道推算的系統(tǒng)誤差為1.5%。這種方法具有不擾動(dòng)流場(chǎng)、測(cè)量剖面同步性較好、數(shù)據(jù)空間分辨率較高的優(yōu)點(diǎn),與傳統(tǒng)的取樣過(guò)濾稱(chēng)量法相比,計(jì)算效率顯著提高。
[Abstract]:This paper briefly introduces the basic principle of estimating suspended sediment content by using acoustic Doppler flow profiler (ADCP) echo intensity, and combines with the application example of Wuzhou hydrologic station. The correlation between the echo intensity data of ADCP and the sediment content of water samples collected in the field is established. According to the correlation relation, the sediment content of suspended sediment estimated by echo intensity inversion is proved to be feasible by using ADCP echo intensity to estimate suspended sediment content. The practice of Wuzhou hydrologic station shows that the sediment content of suspended sediment is estimated by echo intensity inversion. The systematic error of the left channel is -0.1 and that of the right channel is 1.5. This method has the advantages of not disturbing the flow field, good synchronicity of the measurement section and high spatial resolution of the data, compared with the traditional sampling filtering weighing method. The efficiency of calculation is improved remarkably.
【作者單位】： 梧州市水文水資源局;中國(guó)地質(zhì)科學(xué)院巖溶地質(zhì)研究所國(guó)土資源部/廣西壯族自治區(qū)巖溶動(dòng)力學(xué)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(41402324,41402238) 地質(zhì)調(diào)查項(xiàng)目(121201237000160002,121201107000150003) 廣西自然科學(xué)基金(2014GX NSFBA118228)
【分類(lèi)號(hào)】：TV143

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本文編號(hào)：1554632