International Symposium On Modern Technologies, Education And Professional Practice In Geodesy And Related Fields, Sofija, Bulgaria, 05 November 2009, pp.116-130
All surveying methods have different accuracy levels for determining the depths and positions.
Surveyors prefer the appropriate method for the survey. As a result of this, sometimes same survey
projects can be carried out with different accuracies. This confusion is removed by forming
surveying standards. In this way, consistency and uniformity could be provided. In this paper
different hydrographic survey standards are evaluated. In this frame, several hydrographic survey
standards belong to different organizations/offices (i.e. IHO S-44, USACE, LINZ, CHS, SMA and
NOAA) are investigated. Recent depth determination and positioning techniques with their
attainable accuracies are also introduced. These accuracies are compared to required ones described
in the standards. This study shows that today’s widely used depth determination and positioning
techniques can certainly meet the required accuracy levels.