Prydz Bay Current Meter Data 1987-1988

This dataset contains current meter data from Prydz Bay, Antarctica. Current meters were deployed on 5 moorings around Prydz Bay between March 1987 and February 1988. Summary results and deployment details are in the documentation. Temperature and salinity were also recorded. Records are not continuous at each site over this time period. Mooring 1 had a single current meter with a target depth of 100-200m, mooring 2 had 2 Aanderaa current meters with deployment depths of 223m and 425m and an S4 current vector-averaging meter at 123m from the surface, mooring 3 had 2 Aanderaa current meters at target depths of 300m and 1500m, Mooring 4 had 4 Aanderaa current meters with depths of 182m, 328m, 430m and 512m, mooring 5 had 4 Aanderaa meters at 273m, 419m, 567m and 670m. Three moorings were deployed for a full year, March 1987 to February 1988 (the 'winter' deployment) and 2 moorings released in October 1987 for about 4 months ('summer' deployment). Six of the 12 current meters deployed were recovered.The fields in this dataset are:DEVICE IDENTIFICATIONSAMPLE PERIODTEMPERATURE PARAMETERSCONDUCTIVITY PARAMETERSSEA CURRENT DIRECTION PARAMETERSSEA CURRENT SPEED PARAMETERSDATETIMETEMPERATURE (DEGREES C)SALINITY (Ppt)DIRECTION (degrees)SPEED (knots)

本数据集包含南极普里兹湾（Prydz Bay）的海流计（current meter）观测数据。1987年3月至1988年2月间，研究人员在普里兹湾周边的5套锚系（mooring）上布设了海流计。相关汇总结果与布设细节详见随附文档。观测过程中同步记录了温度与盐度数据。在此观测周期内，各站点的观测记录并非连续完整。
锚系1仅搭载1台海流计，目标布设深度为100~200米；锚系2搭载2台Aanderaa品牌海流计，布设深度分别为223米与425米，另在距水面123米处布设了1台S4海流矢量平均计；锚系3搭载2台Aanderaa品牌海流计，目标深度分别为300米与1500米；锚系4搭载4台Aanderaa品牌海流计，布设深度依次为182米、328米、430米与512米；锚系5搭载4台Aanderaa品牌海流计，布设深度依次为273米、419米、567米与670米。
其中3套锚系完成了完整年度观测，即1987年3月至1988年2月，对应"冬季布设"方案；另外2套锚系于1987年10月布设，仅开展了约4个月的观测，对应"夏季布设"方案。本次共计布设12台海流计，其中6台成功回收。
本数据集包含以下字段：设备标识（DEVICE IDENTIFICATION）、采样周期（SAMPLE PERIOD）、温度参数（TEMPERATURE PARAMETERS）、电导率参数（CONDUCTIVITY PARAMETERS）、海流方向参数（SEA CURRENT DIRECTION PARAMETERS）、海流速度参数（SEA CURRENT SPEED PARAMETERS）、日期时间（DATETIME）、温度（DEGREES C，单位：摄氏度）、盐度（Ppt，单位：千分比）、海流方向（degrees，单位：度）、海流速度（knots，单位：节）。