RV Investigator Voyage IN2015_T01 ADCP Data

This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2015_T01, titled: "Transit Hobart to Sydney." The voyage took place between 10 May and 13 May, 2015 departing Hobart (TAS) and returning to Sydney (NSW).

Data was collected during in2015_t01 for the duration of the voyage. Data was collected using VMDAS and post-processed using CODAS.
Both the OS75 and the OS150 ADCPs were operated for the duration of the voyage.
Due to issues with VMDAS acquiring serial data, all navigation data was regenerated from Techsas acquired NMEA strings.
The OS150 ADCP was externally triggered to manage interference with other instruments, which resulted in data quality issues. The OS75 appears to have been primarily internally triggered, leading to greater data coverage and quality.
The drop keel was flush with the gondola (transducer 7.7m below the waterline) for the duration of the voyage.
See the voyage computing and electronics report for more details regarding data acquisition.

This dataset was processed and then archived within the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart.

本记录详述了澳大利亚海洋国家设施“调查者号”（RV Investigator）航次IN2015_T01所采集的声学多普勒流速剖面仪（Acoustic Doppler Current Profiler, ADCP）数据，该航次主题为“霍巴特至悉尼航渡”。本次航次于2015年5月10日至13日开展，从塔斯马尼亚州霍巴特起航，最终返回新南威尔士州悉尼。本航次全程均采集了相关数据，数据采集采用VMDAS系统，后期处理使用CODAS软件完成。航次期间全程部署了OS75与OS150两款ADCP设备。因VMDAS在串行数据采集环节存在故障，所有导航数据均通过从Techsas采集的NMEA字符串重新生成。OS150 ADCP采用外部触发模式以规避与其他仪器的信号干扰，但该触发模式引发了数据质量问题；而OS75主要采用内部触发模式，因此数据覆盖范围与整体质量均更优异。本航次全程将减摇龙骨与换能器吊舱保持齐平状态，换能器安装于吃水线下7.7米处。有关数据采集的更多细节，请参阅航次计算与电子设备报告。本数据集已完成处理与归档，存储于位于霍巴特的澳大利亚联邦科学与工业研究组织（CSIRO）海洋与大气（O&A）信息与数据中心（IDC）。