cj! 19 Posted February 3, 2019 Share Posted February 3, 2019 With the rise and rise of crowdsourcing and citizen science, I was wondering if LINZ had considered it as a source for depth data for charts given so many boats now have depth sounders and GPS. It would require the addition of data logging hardware or software but these are not necessarily costly. With the number of recreational boats that are out and about compared to how many survey vessels they have active it would certainly provide more current data in any given timeframe. Think of the post-earthquake Kaikoura seabed. Navionics has this type of capability but it isn't fed back to LINZ. They have responded letting me know that they are watching developments. I've attached the International Hydrographic Organisation PDF of the draft guidelines for how the hydrographic community manages crowd-sourced bathymetry. Here's a link to it as well. bit.ly/crowd_pdf Also, there are people like OpenSeaMap and Terranautical working on this too. https://depth.openseamap.org/#introduction https://www.terranautical.com/paper/olddefault.htm#_Toc2911181 https://www.terranautical.com/paper/tndhydro.pdf CSB-Guidance_Document-Edition_2.0.0-Clean.pdf Quote Link to post Share on other sites
dutyfree 170 Posted February 4, 2019 Share Posted February 4, 2019 If you have Navionics charts they have a function called Sonar charts or similar. If your MFD, depth sounder has the facility it logs where you are and the depths etc, you then upload it to Navionics, they verify it and you can download the latest "crowd sourced" Sonar charts (not for navigation they say ). I often run the standard chart side by side with the "sonar" chart. Where people go a lot and share the data you get some really good depth definition. Quote Link to post Share on other sites
Island Time 1,235 Posted February 4, 2019 Share Posted February 4, 2019 This facility is available on most modern navico gear. Raymarine has theirs as well. The navico ones go to 1foot 300mm contours, you can make your own charts, and choose to share or not share the data. Quote Link to post Share on other sites
eruptn 95 Posted February 7, 2019 Share Posted February 7, 2019 Garmin offer similar too. Quote Link to post Share on other sites
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