The CalCOFI CTD Database format is currently being revised (Sept 2015). Data quality columns for each sensors are being added to the database tables to flag questionable or bad data. Until this version is available, the original CTD database links will be available below.
The CTD database is constructed or updated from each cruises' CTD cast files after bottle-corrections have been applied. Two tables - upcast & downcast - are in the database along with bottle data used to calibrate the sensors. Note that typically three columns are available for each sensor: Seasave-only processed sensor data - no bottle correction applied; cruise-corrected ("CruiseCorr") = bottle-corrected sensor data using coefficients derived from regressing all bottle data to sensor data; station-corrected ("StaCorr") = bottle-corrected sensor data using coefficients derived from regressing only the current station's bottle data to sensor data. Station-corrected sensor data is considered the best when 20 or more bottle samples are available to calibrate the sensor measurements. Station-correcting helps eliminate the station-to-station variability in certain sensor, particularly the ISUS when a new lamp is installed and experiencing "burn-in" drift.
- 2009 CTD+Bottle csvs (4 cruises merged;downcast, upcast; final bottle data)
- 2010 CTD+Bottle csvs (4 cruises merged;downcast, upcast; final bottle data)
- 2011 CTD+Bottle csvs (4 cruises merged;downcast, upcast; 1110 bottle data preliminary)
- 2012 CTD+Bottle csvs (2 cruises merged;downcast, upcast; preliminary bottle data)