This article, first published in Hydro International in 2012, is still relevant but has a few caveats due to advances in Satellite Based Augmentation Systems (SBAS).
- In 2012 SBAS corrections were typically accurate to ~0.5m in the horizontal axes
- Since this article first appeared, commercial SBAS accuracies have improved by an order of magnitude
- The article covered shallow-water surveying, yet never specifically stated the topic was limited to surveys where IHO Special Order specifications applied
- Today’s more appropriate title is “Stop Using Decimetric+ Positioning in Shallow Water Surveys!”
Centimetre-level SBAS Information:
