During the oceanographic surveys conducted aboard the R/V Cornide de Saavedra (Spanish Institute of Oceanography, IEO-CSIC), its continuous navigation echosounder device was integrated into the data management system in 2011. Subsequently, daily data transmission to the IEO/NODC data center continued until the conclusion of vessel activity in 2013. Following a comprehensive review of quality control and assessment, encompassing clock verification, positional data, and recorded values, the entire dataset was provided with quality flags (QF) to optimize its usability. Both the data files and QF align with seadatanet.org standards.