【摘要】 雪龙号于1995年中国第12次南极科学考察开始进行现场观测至今,已经取得了9个南大洋航次的和2个北冰洋航次的ADCP走航观测数据。然而,这些数据仍多以原始数据的形式存储于数据库中。本文以雪龙号船载ADCP和船载相关辅助设备的性能为基础,结合其导航数据,根据对南大洋海洋学基本状况的了解,综合选择国内外先进的技术和方法,提出了走航式ADCP原始资料处理的基本流程:资料检验、时间修正、数据入库、质量控制、标定、旋转修正、船速船位计算等程序和技术处理。以此流程对1995—1999年四个雪龙号南极航次ADCP原始资料进行了处理,并以处理后的数据分层计算了海流,获得了沿航线的上层至500m深度中的海流绝对流速数据集,和各航次、各航段、逐层的海流矢量图。结果显示,除高纬区域外,总体数据质量可信度较高。根据这次数据处理的经历,提出了未来取得更客观、精确的ADCP测流数据的技术性建议。此外,本文还阐述了ADCP资料的多学科分析和应用的国际进展,例如用于海洋生态学和海水悬浮体的研究等。更多还原

【Abstract】 Twelve cruises underway data of Acoustic Doppler Current Profiler(ADCP)installed on board Xuelong Vessel between China and the Antarctic have been obtained by the Chinese National Antarctic Research Expeditions(the CHINAREs)since 1995.However,most of them is still stored in the database as original.This paper presents a basic flow chart of the ADCP data processing based on analysis of relative records by navigation and positioning equipments on board,and our knowledge on the oceanographic status along the transects of the ship.The flow chart includes data scanning,time correction,loading data into databases,editing,calibration and rotation,navigation calculation,and lastly computing absolute current velocities and making vector plots at different layer along parts of the ship tracks for the CHINARE-12th(1995/1996),-13th(1996/1997),-14th(1997/1998),and-15th(1998/1999)(in austral summers).Absolute current vector plots were obtained for this processed data set.Such technical processing flow chart may facilitate for ADCP data processing,analysis of the other cruises in the future.We made technical advice on how more accurate ADCP data would be obtained according to our processing experience.We also described farther ADCP data analysis and multidisciplinary applications.更多还原