HX274 CTD Data [Woodgate, R.]

This is calibrated Conductivity, Temperature, Depth (CTD) downcast data from the Alpha Helix Cruise HX274, a mooring recovery and redeployment cruise during June and July 2003. Data were post calibrated and adjusted to bottle samples by Seth Danielson of the University of Alaska Fairbanks (UAF). These data were collected with a Seabird 911 Plus CTD sampling at 24 frames/second with 2 conductivity and 2 temperature sensors. Salinity offset was determined by applying pre- and post-season factory calibration values, interpolated linearly over the course of the season by month, in conjunction with discrete salinity bottle samples.本数据集为2003年6至7月开展的锚系回收与重新部署航次——Alpha Helix航次HX274所获取的经校准电导率、温度、深度（Conductivity, Temperature, Depth, CTD）下行剖面数据。数据由阿拉斯加费尔班克斯大学（University of Alaska Fairbanks, UAF）的Seth Danielson完成后期校准，并结合采水器样本进行了校正。该数据通过Seabird 911 Plus型CTD采集，采样帧率为24帧/秒，搭载2个电导率传感器与2个温度传感器。盐度偏差值通过以下方式确定：结合离散采水器盐度样本，采用航次前后的工厂校准值，并按月份对整个航次周期进行线性插值计算得到。