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.本研究的锚泊式测流站（current meter mooring）部署于杰维斯湾垂直角岬（Point Perpendicular）离岸约2公里的100米水深海域。该锚站搭载了3台测流计（current meter），布设水深分别为30米、55米与90米，同时搭载一台验潮仪（tide gauge）。 在约8个月的观测周期内，该锚泊系统曾3次部署于名义一致的海域（部署位置详见图示）：第1次部署位置为南纬35.16°、东经150.817°；第2、3次部署位置为南纬35.1267°、东经150.825°。 本次展示的数据集为整个观测周期内三台测流计获取的观测数据。其中小时级数据集整合了3次部署的全部观测内容，涵盖东向与北向潮汐分量、跨岸与沿岸流速分量、水温、盐度及密度异常参数（sigma-T）。 上述完整数据集的子集数据，对应单点观测结果：30米、55米水深的上层两层测流计，采样间隔分别为第1次部署10分钟、第2、3次部署15分钟；90米水深层的测流计采样间隔则为第1、2次部署10分钟，第3次部署30分钟。相较于小时级平均数据集，该子集数据可支持更短时间尺度的海洋水动力过程分析。该子集数据的观测参数包括东向与北向潮汐分量、水流速度与流向、水温、盐度及sigma-T密度异常参数。 各次部署的大致日期如下，精确采集时间请查阅单条记录：1）1989年4月11日—1989年6月5日；2）1989年7月28日—1989年8月29日；3）1989年8月30日—1989年11月29日。 验潮仪相关说明：三次部署期间，该验潮仪均固定于水深约100米、紧邻海床的锚泊缆绳上。除水深观测外，该验潮仪还搭载了水温传感器。 本数据集为关联父记录编号5f4333e0-2ae5-11dd-a735-00188b4c0af8的4条子数据集之一。通过本记录可下载两份PDF文档：其一为概述本项目全部元数据结构与层级关系的说明文档，其二为记录本实验及研究成果的已发表工作论文PDF。