Argo Reference database for delayed mode QC

This section provides information on the Argo Reference Database for delayed mode quality control processing

The free-moving nature of profiling floats means that most float measurements are without accompanying in-situ “ground truth” values for absolute calibration (such as those afforded by shipboard CTD measurements). Therefore Argo delayed-mode procedures for checking sensor drifts and offsets in salinity rely on reference datasets and statistical methods. .