ECDIS - ENC Accuracy

The accuracy of the data on your ENC is as varied as paper charts. Like paper charts the data contained in the ENC is only as accurate as the original survey data from which it was made up.

The bridge team should always use ENCs with caution as the accuracy of the original survey will never be 100%.

Whilst using ECDIS brings many benefits to the navigator, the watchkeeping officer must understand the accuracy of the data they are using, and then in turn be prudent in the amount of reliance they place in the ENCs being used.

This briefing serves to provide the watchkeeper using ECDIS with information on determining the accuracy of the information displayed on their ENC.