| 联合WOA2018温盐模型及实测温盐资料重构全深度声速剖面(二):精度评估 |
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| 引用本文： | 黄辰虎,王梓,张晓娟,姚俊杰,李占桥,申家双,陆秀平.联合WOA2018温盐模型及实测温盐资料重构全深度声速剖面(二):精度评估[J].海洋测绘,2020,40(2):9-14. |
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| 作者姓名： | 黄辰虎 王梓 张晓娟 姚俊杰 李占桥 申家双 陆秀平 |
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| 作者单位： | 国防科技大学智能科学学院,湖南长沙410073;海军研究院,天津300061;军委联合参谋部战场环境体系论证中心,北京100089;91001部队,北京100841;92150部队,浙江舟山316000;海军研究院,天津300061 |
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| 基金项目： | 国家自然科学基金(41974005；41876103；41804011) |
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| 摘 要： | 利用西太平洋海域多个站位的XBT、XCTD及CTD实测温盐资料,对WOA2018温盐模型的可靠性进行了评估,开展了全深度声速剖面重构试验。结果表明,当水深分别为761～1 100 m、大于1 101 m和大于1 821 m时,实测资料计算的声速剖面与温盐模型推算的声速剖面互差在-2.0～2.0 m/s、-0.7～0.7 m/s和-0.7～0.45 m/s,而与实测温度和盐度模型推算的声速剖面互差总体上在-0.2～0.2 m/s。基于临界探测深度处温盐实测值对探测深度以外温盐模型施加约束和控制,以提高声速预测值精度有待进一步研究。
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| 关 键 词： | 水深测量 温度剖面 盐度剖面 声速剖面 探测深度 |
Reconstruction of the Full-depth Sound Speed Profile with World Ocean Atlas2018 and in-situ Temperature and Salinity in Sea Water,PartⅡ: Accuracy Assessment |
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| HUANG Chenhu,WANG Zi,ZHANG Xiaojuan,YAO Junjie,LI Zhanqiao,SHEN Jiashuang,LU Xiuping.Reconstruction of the Full-depth Sound Speed Profile with World Ocean Atlas2018 and in-situ Temperature and Salinity in Sea Water,PartⅡ: Accuracy Assessment[J].Hydrographic Surveying and Charting,2020,40(2):9-14. |
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| Authors: | HUANG Chenhu WANG Zi ZHANG Xiaojuan YAO Junjie LI Zhanqiao SHEN Jiashuang LU Xiuping |
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| Abstract: | The reliability of temperature and salinity model of WOA2018 are evaluated by using the oceanographic survey data of XBT, XCTD and CTD which were obtained in the Western Pacific Ocean. The sound speed profile differences (SSPDs) between the measured SSPs (calculated by the measured TPs and SPs) and the SSPs reconstructed using both TPs and SPs of WOA2018 are -2.0~2.0m/s, -0.7~0.7m/s, and -0.7~0.45m/s, at the depth of 761~1100m, 1100~1820m, and deeper than 1821 meters, respectively. The SSPDs between the measured SSPs and the SSPs reconstructed using the measured TPs and the SPs of WOA2018 are -0.20~0.20m/s in the above depth ranges. According to the measured values of temperature and salinity at the detection depth, the model values beyond the detection depth should be constrained to improve the accuracy of the predicted values of sound speed. |
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