Southern Surveyor Voyage SS 11/2004 CTD Data (Part processed NetCDF files only)

This dataset contains the UNCALIBRATED Conductivity-Temperature-Depth (CTD) data collected on Southern Surveyor voyage SS 11/2004. The voyage took place in the Coral Sea and the Pacific Ocean between 27-Oct-2004 to 23-Nov-2004. NO HYDROCHEMISTS WERE ON THIS VOYAGE SO this UNCALIBRATED ctd dataset has been processed as far as possible. IT will NOT be included in the processed data delivered via Data Trawler. Notes re the CTD averaged data files for ss2004/06 & 11 ======================================================= The dataset includes both 'normal' (*Avg.nc) and 'ToYo' (*Avt.n) averaged files. General comments: * Both datasets have been subjected to basic QC (removal of spikes), * The temperature data is accurately calibrated. * Salinity uses the manufacturer's conductivity calibration, as no calibration samples were collected during the voyage. This data should not therefore be used for serious oceanographic calculations. * An arbitrary calibration was applied to the transmission data, giving it a range of 0 - 100 (%) in air The 'Normal' averaged files: * Have a 2 dB averaging interval. * Only include the downcast data * Pressure reversals have been removed. The ToYo files have the following attributes: * Averaging interval = 0.5dB (or 10 secs, if the package stays within a particular depth bin for an interval > 10 secs) * Pressure reversals are not removed. * The profiles may include out-of-water or 'pumps off' data * The files include Lat, Long and depth, but the only non-NaN values are for the start, bottom & end of the cast. This is of no real consequence, as this data is only required for 'towed' ToYos. We did standard CTD casts, which have been averaged as ToYos.

本数据集收录“南方调查者号”（Southern Surveyor）SS 11/2004航次采集的未校准温盐深（Conductivity-Temperature-Depth, CTD）数据。该航次于2004年10月27日至2004年11月23日期间于珊瑚海与太平洋海域开展。本次航次未配备水化学科研人员，因此本未校准CTD数据集已完成尽可能充分的处理，但不会被纳入通过数据拖网（Data Trawler）交付的正式已处理数据集。

关于ss2004/06与ss2004/11航次CTD平均数据文件的说明：
本数据集同时包含“常规”（*Avg.nc）与“托约”（ToYo）两类平均数据文件。

通用说明：
1. 两类数据集均已完成基础质量控制（QC），包括尖峰剔除操作；
2. 温度数据已完成精准校准；
3. 因本次航次未采集校准样本，盐度数据采用厂商提供的电导率校准参数，故该数据不得用于正式海洋学计算；
4. 透射数据经任意校准处理，使其在空气中的量程范围为0~100（%）。

“常规”平均数据文件特性：
1. 采用2 dB的平均间隔；
2. 仅包含下行测量数据；
3. 已剔除压力反转数据。

“托约”平均数据文件具备以下特性：
1. 平均间隔为0.5 dB；若测量设备在单一深度层停留时长超过10秒，则平均间隔调整为10秒；
2. 未剔除压力反转数据；
3. 剖面数据可能包含出水或“泵关闭”状态下的采集数据；
4. 文件包含纬度、经度与深度数据，但仅在测次的起始、终止与最深处存在非空（非NaN）数值。此情况无实际影响，因该类数据仅适用于“拖曳式”托约测量；
5. 本次航次开展的标准CTD测次数据已按托约格式完成平均处理。