CAUTION - QUALITY OF BATHYMETRIC DATA
The areas represented by the object M_QUAL (Quality of Data) are approximate due
to generalizing for clarity. Caution is advised, particularly for nearshore navigation
or voyage planning. M_QUAL represents areas of uniform quality of bathymetric
data. The CATZOC (Category of Zone of Confidence in Data) attribute of M_QUAL
provides an assessment of the overall zone of confidence.