RV CORYSTES 10/1995 Low Resolution Conductivity-Temperature-Depth (CTD) Data

The data in this archive were collected from CEFAS (Or DFR) research cruises.
They broadly cover the European Shelf with some data from the Iberian Abysal
Plain. Data were collected using the lowered CTD rosette system which is used
when the vessel is stationary. Usually bottles were fired at particular depths
and samples taken for calibration. In early years only a limited set of
parameters were collected. Notably Pressure (Depth), Temperature and
Conductivity (CTD). From Conductivity Salinity can be calculated using the
UNESCO 1978,1983 formulations . In subsequent years more sensors have been
added, notably fluorometers, Optical back scatter or transmissometers and
Light (PAR, photo synthetically available radiation). The exact configuration
varies between cruises and this is reflected in the data format of the output
files.

Data was collected from research vessels on station, a profile from the
surface to near the sea bed is undertaken. The down cast data should be a
clean profile. Water bottles for sample collection and calibration are fired
on the up cast.

本数据集收录了来自CEFAS（或DFR）科研航次的资料。该数据集广泛覆盖了欧洲大陆架，并包含伊比利亚海盆的一些数据。资料收集采用了降低式CTD圆筒系统，该系统适用于船舶静止时使用。通常在特定深度释放瓶体进行样品采集和校准。早期年份仅收集了有限的参数集，包括压力（深度）、温度和电导率（CTD）。通过电导率，可以使用UNESCO 1978、1983年的公式计算出盐度。在随后的年份中，增加了更多的传感器，特别是荧光计、光学后向散射或透射计以及光（PAR，光合有效辐射）。具体的配置因航次而异，并在输出文件的数据格式中得到反映。数据收集自科研船舶在站点的收集，从海面至近海底进行剖面采集。下投数据应呈现一个干净剖面，上投时释放的水瓶用于样品采集和校准。