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用ADCP进行走航式悬沙浓度测量的初步研究
引用本文:汪亚平,高抒,李坤业.用ADCP进行走航式悬沙浓度测量的初步研究[J].海洋与湖沼,1999,30(6):758-763.
作者姓名:汪亚平  高抒  李坤业
作者单位:中国科学院海洋研究所!青岛266071
基金项目:中国科学院院长基金!A1097020,国家杰出青年科学基金!49725612
摘    要:用DR300型宽幅ADCP在胶洲湾口站进行了走航工断面观测。观测期间悬沙浓度小于40mg/L,悬沙粒度分布曲线具有双峰特征,调查船航速为2 ̄3m/s。用水样过滤法率定相应的ADCP声学信号,获得池计算悬沙浓度的半经验公式及悬沙浓度剖面分布数据,分析结果即使在悬沙浓度较低,悬沙分选性较差,船速较高等不利于ADCP观测的现场条件下,测量误差与光透式浊度计的误差相当。因此,在走航状态和低悬沙浓度条件下

关 键 词:ADCP  悬沙浓度  回声强度  胶洲湾  海岸泥沙
收稿时间:1998/11/3 0:00:00
修稿时间:1999/5/15 0:00:00

A PRELIMINARY STUDY ON SUSPENDED SEDIMENT CONCENTRATION MEASUREMENTS USING AN ADCP MOUNTED ON A MOVING VESSEL
WANG Ya-ping,GAo Shu and LI Kun-ye.A PRELIMINARY STUDY ON SUSPENDED SEDIMENT CONCENTRATION MEASUREMENTS USING AN ADCP MOUNTED ON A MOVING VESSEL[J].Oceanologia Et Limnologia Sinica,1999,30(6):758-763.
Authors:WANG Ya-ping  GAo Shu and LI Kun-ye
Institution:Institute of Ocaenology, The Chinese Academp of Scieiences, Qingdao, 266071;Institute of Ocaenology, The Chinese Academp of Scieiences, Qingdao, 266071;Institute of Ocaenology, The Chinese Academp of Scieiences, Qingdao, 266071
Abstract:A DR300 Broad Band ADCP mounted on a moving vessel (with a speed of 2-3m / s)was used to measure the profile of suspended sediment concentaions- The measarements were undertakn at the entrane to Jiaozhou Bay, Shanclong Pehinsula (where the water is associated with a low suspended sediment concentration during a spring hde. The echo intensity data produced by the ADCP have been transformed into suspended sediment concenedon data on the basis of in situ calibration- The results show that the calibrated curve can be used tD calculato the suspended sediment concentration, with a relahve error of aroUnd 32%. thnce,it is feasible to measme the suspended sediment concentration using the ADC mootd on a moving vessel with a relative high speed. Further, this technique can be appied to the measarement of low suspended sediment concendons. Compared with transhosometers and conventional asoushc backscatters, the ADC rePresents a potenhally powerful tool to obtaln suspended sedimellt concentration data with a high efficiency in conhnental shelf warers.
Keywords:ADCP Suspended sediment concentration Echo intensity Jiaozhou Bay
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