| 中短期验潮站验潮零点不规则漂移精密处理 |
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| 引用本文： | 黄辰虎,陆秀平,边刚,黄贤源,管明雷,翟国君,黄谟涛.中短期验潮站验潮零点不规则漂移精密处理[J].武汉大学学报(信息科学版),2018,43(11):1673-1680. |
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| 作者姓名： | 黄辰虎 陆秀平 边刚 黄贤源 管明雷 翟国君 黄谟涛 |
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| 作者单位： | 1.国防科技大学智能科学学院, 湖南 长沙, 410073 |
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| 基金项目： | 国家自然科学基金41706111国家自然科学基金41474012国家自然科学基金41174062 |
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| 摘 要： | 压力验潮仪是海洋深度测量最重要的辅助传感器之一，中、短期验潮站一般采用压力验潮仪定点布设并实现对沿岸水深测量的水位控制。受复杂海洋作业环境的综合影响，在工程实践中发现验潮零点极易出现不规则漂移，是制约水深测量成果精度的主要因素之一，但相关的探测与校正精密理论研究滞后。分析了验潮零点不规则漂移的形成机理，提出了漂移探测及校正的精密处理数学模型。通过对定海长期站和港鑫临时站以及大丰长期站和三丫子临时站等近一个月实测同步验潮数据的处理，分析了两种日平均海面计算方法对不同周期分潮的削弱效果，结果表明，本文提出的新模型适用于验潮零点不规则漂移的精密处理，经零点校正后，港鑫、三丫子等临时验潮站的水位观测数据精度由dm级提高至cm级。
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| 关 键 词： | 验潮站 水位控制 压力验潮仪 零点漂移 日平均海面 |
| 收稿时间： | 2017-10-10 |
Precise Processing on the Irregularly Drift of the Zero Point of the Medium-Short Tide Gauge |
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| Affiliation: | 1.College of Artificial Intelligence, National University of Defence Technology, Changsha 410073, China2.Naval Institute of Hydrographic Surveying and Charting, Tianjin 300061, China3.Department of Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China4.Key Laboratory for Geo-Environmental Monitoring of Coastal Zone of the National Administration of Surveying, Mapping and Geoinformation, Shenzhen University, Shenzhen 518060, China |
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| Abstract: | The pressure sensor tide gauge is the main auxiliary sensor in bathymetry, which is mainly deployed in the medium-short tide gauge for the water level control of coastal bathymetry. Therefore, the sounding precision can be greatly restricted by the irregular drift of the zero point of the pressure sensor tide gauge in different operating environment, and the related detecting and correction theory are scare and lag behind. The formation mechanism of the irregularly drift has been analyzed in this paper, and the detecting method and calibrating model have been brought forward. Furthermore the observed data of one month between the long-term tide gauge Dinghai and the temporary tide gauge Gangxin have been analyzed. The results show that the vibration of the partial tide with different pe-riods can be weakened by two kinds of daily mean sea level calculation methods. The calibration model can be effectively applied in the processing of the zero point of the pressure sensor tide gauge and the observation precision can be improved from more than ten centimeters to centimeter. |
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