Fig.3 Time change of the number of observations in POD.
Fig.4 Monthly or seasonal fixed observation lines of Prefectural Fisheries Experimental Stations.
The MRC performed quality checks to POD of Wakayama PFES from 1975 to 1995 using POD-QC. The POD-QC detected 387 erroneous sections of estimated ship speed exceeding15 knots between stations and 511 erroneous stations of observed level exceeding 15% of water depth.
