TeamSurv is a project where mariners help create better charts of coastal waters, by logging depth and position data whilst they are at sea. We show the data provided by all of our data loggers on our web site, overlaid over Google Maps. At present we show the depths along the tracks of all boats.
We are currently implementing corrections for tide height etc. Shortly it will be possible to see both the logged and the corrected data. As we get more data for an area we will be able to process this to create charts.