摘要
海洋声速剖面数据是了解海洋物理特性、提高水下目标探测和定位的准确性、优化水下通信网络设计的关键数据,同时也是监测海洋环境变化的重要指标数据;海洋声速剖面直接观测不受模型预测或估算的误差影响,可以提供精确的声速剖面数据,对于科学研究、技术发展、环境监测、资源开发以及实际应用都具有重要的价值。在2018年夏季完成的中国第九次北极科学考察航次中,我国首次利用海洋声速剖面仪进行声速直接观测,在北冰洋的楚科奇海台、加拿大海盆、门捷列夫海岭以及其他高纬度海域获得了第一手海洋声速剖面实测数据。本研究在收集整理我国第九次北极海域考察海洋声速剖面仪和同步观测的CTD数据的基础上,参考航次现场记录,利用相关数据处理软件,对海洋声速剖面实测数据进行了统一、规范和奇异值剔除,最终形成垂向分辨率为1 m,包含日期、时间、声速和水深等要素的数据集。它属于我国第九次北极科学考察成果,为极地各学科研究工作提供了数据基础。
Ocean acoustic profile data are key to understanding the physical properties of the ocean,playing a vital role in improving the accuracy of underwater target detection and positioning,optimizing the design of underwater communication networks,and serving as an important indicator for monitoring changes in the marine environment.Direct observation of ocean acoustic profiles eliminates errors caused by model prediction or estimation,providing precise and reliable measurements.The data are of significant value for scientific research,technological development,environmental monitoring,resource exploration,and practical applications.During the 9^(th) Chinese Arctic Scientific Expedition conducted in the summer of 2018,an acoustic Doppler current profiler was used to directly observe the speed of sound in the ocean for the first time.First-hand measured data of ocean acoustic profiles were obtained from the Chukchi Plateau,the Canada Basin,the Mendeleev Ridge,and other high-latitude regions of the Arctic Ocean.Based on the collection and organization of the acoustic profiler and synchronous CTD observations from the 9^(th) Chinese Arctic Expedition,and with reference to expedition’s field records,the measured SSP data were processed through standardized quality control procedures,including unification,normalization,and outlier removal,using dedicated data-processing software.Ultimately,a dataset with a vertical resolution of 1 m is formed,including variables such as date,time,acoustic velocity,and water depth.It is one of the scientific outputs of the 9^(th) Chinese Arctic Scientific Expedition,and provides a data foundation for multidisciplinary polar research.
作者
陈红霞
林丽娜
刘娜
吴立宗
綦欣
赵灿然
CHEN Hongxia;LIN Lina;LIU Na;WU Lizong;QI Xin;ZHAO Canran(First Institute of Oceanography,Ministry of Natural Resources,Qingdao 266061,P.R.China;Key Laboratory of Marine Science and Numerical Modeling,Ministry of Natural Resources,Qingdao 266061,P.R.China;Polar Research Institute of China,Shanghai 200136,P.R.China;National Arctic and Antarctic Data Center,Shanghai 200136,P.R.China)
基金
自然资源部第一海洋研究所基本科研业务费专项资金项目(GY022Y07)
2020年北极漂流冰站计划(MOSAi C计划)。
关键词
中国第九次北极考察
北冰洋
海洋声速剖面
CTD数据
the 9^(th)Chinese Arctic Expedition
the Arctic Ocean
ocean acoustic profile
CTD data
