Current meter and tide gauge data obtained from an off-shore mooring near Jervis Bay: 05/04/89 - 07/12/89

A current meter mooring was installed in 100m of water, approximately 2km offshore of Point Perpendicular, Jervis Bay. This mooring housed 3 current meters (at 30m, 55m and 90m water depth) and also a tide gauge. Over a period of approx. 8 months the mooring was deployed 3 times in nominally the same location (as illustrated). Deployment 1 - 35.16 S, 150.817 E. Deployments 2 & 3 - 35.1267 S, 150.825 E. Datasets presented here correspond to data retrieved from the three current meters over the study period.The hourly datasets provide data accumulated from all 3 deployments, and provide details of the eastern & northern tidal components, cross & long-shore velocity components, temperature, salinity and sigma-T.The subsets to these larger datasets present individual data points collected at sample intervals of 10 mins (deployment 1) or 15 mins (deployments 2 & 3) for the upper two meters at 30m and 55m water depth. The current meter at 90m utilised sampling intervals of 10mins (deployments 1 & 2) and 30mins (deployment 3). Compared to the hourly averaged datasets, these allow water movements to be studied over a shorter time scale. The parameters measured include the eastern and northern tidal components, water speed and direction, temperature, salinity and sigma-T.Approx deployment dates - see individual records for exact date and time of collection: 1) 11/4/89 - 5/6/89... 2) 28/7/89 - 29/8/89... 3) 30/8/89 - 29/11/89TIDE GAUGE: The tide gauge was secured to the mooring line on the sea-bed at a depth of ~100m for all three deployments In addition to depth, the tide gauge also housed a temperature sensor.This is one of four child records that relate to the parent, 5f4333e0-2ae5-11dd-a735-00188b4c0af8. A pdf outlining the structure and hierarchy of all metadata records relating to this project is available to download through this record. Also available is a pdf of a published working paper documenting this experiment and the results.

本数据集的海流计锚系布放于杰维斯湾（Jervis Bay）垂直角（Point Perpendicular）附近离岸约2km、水深100m的海域。该锚系搭载了3台海流计（current meter，布放水深分别为30m、55m与90m）以及1台验潮仪（tide gauge）。在总计约8个月的研究周期内，该锚系先后3次布放于名义上的同一站位（如图所示）。第1次布放站位：南纬35.16°，东经150.817°；第2、3次布放站位：南纬35.1267°，东经150.825°。
本文呈现的数据集对应本研究周期内从3台海流计获取的观测数据。逐小时数据集整合了3次布放的全部观测数据，包含东向与北向潮汐分量、跨岸与沿岸流速分量、水温、盐度以及密度Sigma-T（sigma-T）的详细信息。上述完整数据集的子数据集，则对应30m与55m水深处上层的观测数据：第1次布放的采样间隔为10分钟，第2、3次布放的采样间隔为15分钟，存储单条独立观测数据点。布放于90m水深的海流计采样间隔为：第1、2次布放时为10分钟，第3次布放时为30分钟。相较于逐小时平均数据集，该子数据集可支持更短时间尺度的海洋水动力过程研究。观测参数包含东向与北向潮汐分量、水流速度与流向、水温、盐度以及Sigma-T（sigma-T）。
大致布放时段：具体采集日期与时间请参见单条记录详情：1）1989年4月11日至1989年6月5日；2）1989年7月28日至1989年8月29日；3）1989年8月30日至1989年11月29日。
验潮仪（tide gauge）：在3次布放作业中，该验潮仪均固定于水深约100m的海底锚系缆绳上。除水深数据外，验潮仪还搭载了水温传感器。
本记录为关联父记录5f4333e0-2ae5-11dd-a735-00188b4c0af8的4条子记录之一。通过本记录可下载一份PDF文档，该文档详述了本项目所有元数据记录的结构与层级关系；同时还可下载一份已发表的工作论文PDF，该论文记录了本次实验及其研究成果。