datum of chart. The depths on the chart in fact refer to a imaginary level know as chart datum. Chart datum, or the specific water level surface used as the reference point on a chart, is unique to each location.
datum of chart Chart datum is the plane below which all depths are published on a navigational chart. While chart datum is an ideal reference point for measuring soundings across a chart, it is not used for measuring heights. Chart datum, or the specific water level surface used as the reference point on a chart, is unique to each location.
Chart Datum, Or The Specific Water Level Surface Used As The Reference Point On A Chart, Is Unique To Each Location.
Each datum is associated with a particular reference. As a rule of thumb, chart datum is normally the lowest you would expect the tide to fall at any given location. Chart datum is the plane below which all depths are published on a navigational chart.
The Depths On The Chart In Fact Refer To A Imaginary Level Know As Chart Datum.
“a horizontal datum is a reference system for specifying positions on the earth’s surface. While chart datum is an ideal reference point for measuring soundings across a chart, it is not used for measuring heights. A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights.