摘要
长江口最大浑浊带海域OBS现场标定和室内标定的实验研究表明,现场标定能很好的在最大浑浊带海域应用,使用OBS时应现场采集同步同时的水样做标定,其结果好于室内标定的结果。室内标定与现场标定之间存在较大误差是由于室内标定所用沙样难以反演现场环境,特别是泥沙组成差异所致。在悬浮泥沙浓度较大时(>1kg/m3),建议采用分段标定,以取得准确的结果。
Comparing with the study of situ calibration and laboratory calibration in the Turbidity Maximum of the Changjiang Estuary, the results show that the situ calibration can be used well in the area of Turbidity Maximum. The results of collecting the situ water sample to survey the Suspended Sediment Calibration （SSC） are better than those of the laboratory calibration. The reason of the difference of the results between the situ calibration and the laboratory calibration is that the sediment of the laboratory calibration is not in accord with the situ conditions, especially the difference of the sediment distribution. In order to get the better results, it suggests that the subsection calibration should be carried out when the value of SSC exceeds 1 kg/m^3 .
出处
《泥沙研究》
CSCD
北大核心
2006年第5期52-58,共7页
Journal of Sediment Research
基金
国家自然科学基金(No.50379014)
国家基础研究发展规划项目(No.2002GB412403)
关键词
长江口
OBS
现场标定
室内标定
the Changjiang Estuary
OBS
situ calibration
laboratory calibration
