NOAA Chart Depth Soundings

miles

19 September 2022 20:46 Edited

Where can I see what the sounding depth units are for the NOAA charts?

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  wild.surge

  27 May 2023 17:11

  I have just verified that for at least one area (Hood Canal) the NOAA soundings are in meters. I’d hope that all the tiles are in the same units but I’m not sure if that’s guaranteed to be true.

  What I did is compare a NOAA chart PDF that has units listed to the Gaia GPS NOAA layer for the same area.

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