Independent temperature series measured by reversing thermometer on POL Coastal Observatory cruise 11, RV Prince Madog cruise PD34_03
Data Originator
John Howarth, Proudman Oceanographic Laboratory
Content of data series
Parameter | Units | Parameter code | CTD Samples |
---|---|---|---|
Temperature of the water column | Degrees Celsius (°C) | TEMPRTNX | 34 |
Originator's Protocol
Independent temperature samples were recorded by two SiS RTM 4002X reversing thermometers (instruments s/n T1563 and s/n T1590). These reversing thermometers were attached to a water bottle at rosette position three on the RV Prince Madog carousel water sampler. This bottle was triggered near-bed at all stations. When the carousel was returned to the surface, the recorded temperatures and standard deviations were read off each reversing thermometer and noted on a CTD logsheet. 34 samples were taken near-bed at 34 CTD stations during cruise PD34_03.
BODC Processing
The data were supplied to BODC on CTD logsheets. The mean of these temperature values was extracted from these sheets and entered into an Excel spreadsheet. This was converted to an ASCII format file for loading into the BODC archive. Methodology and units were checked against information held in the BODC parameter dictionary and an appropriate parameter code was attributed to each variable. The file's data and metadata fields were then checked prior to loading into a database.
The data were loaded into the database under the Oracle Relational Database Management System by matching the sample's station identifier and depth with the information already held in the database for this cruise. The data were successfully loaded without further modification.
Comments on data quality and outstanding issues
The data value for cast C06 has been flagged 'M' as it comes from reversing thermometer s/n 1563 and therefore does not represent an average of both reversing thermometers.