Physical oceanography during VALDIVIA cruise VA10@en

Altogether 290 vertical profiles of temperature and salinity were taken, employing a ME-Multisonde CTD supplemented by a 6 bottle rosette sampler. The CTD provided data with a resolution of 1.5 m deg, 0.2 dbar and 0.002 mS/cm at a rate of 0.5 Hz which were recorded on a Kontron Psi 80 computer and stored on digital floppy disks. Only data from the lowering profiles, run at a speed of 0.7 m/s, were processed. On recovery the instrument was stopped at several depth levels to operate the rosette sampler, thereby providing calibration data for salinity. Due to electronical and mechanical problems with the sampler only about 40 water samples were taken. In addition surface data of temperature and salinity were obtained from bucket samples. Salinities of the samples were analysed on board by use of a Beckmann salinometer. […]本数据集共计获取290组温度与盐度垂直剖面数据，采用搭载6瓶式多瓶采水架采样器（rosette sampler）的ME-Multisonde型温盐深剖面仪（CTD）完成野外采集。该CTD系统以0.5 Hz的采样频率输出数据，其分辨率分别为1.5 m、0.2分巴（dbar）与0.002毫西门子每厘米（mS/cm），采集数据由Kontron Psi 80型计算机记录并存储于数字软盘。本次分析仅纳入以0.7 m/s的下放速度采集的剖面数据。仪器回收阶段，工作人员曾在多个深度层级停机以操作多瓶采水架采样器，以此获取盐度校准所需的水样，但受该采样器电子与机械故障影响，最终仅采集到约40份有效水样。此外，研究团队还通过桶采水样获取了表层海水温度与盐度数据，所有水样的盐度均在船上使用Beckmann盐度计完成分析。[…]