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PD024_02 Bottle salinity series

Data Originator

John Howarth, Proudman Oceanographic Laboratory

Content of data series

Parameter Units Parameter code No. of Samples
Salinity of the water column dimensionless PSALBSTX 21

Originator's Protocol

Samples for salinity were collected from water bottle rosette sampling systems mounted on a lowered CTD. Samples were collected near-bed for all casts. A 250 ml sample was collected in a glass bottle with an insert placed in the top after collection. Each sample was analysed in the laboratory using a Guildline Portasal autosalinometer which has been standardised with IAPSO standard seawater.

BODC Processing

The salinity data were supplied to BODC on CTD logsheets. The salinity values were 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.