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Youre making less sense than ever, as does using the term fsw or msw in the first place if its got "nothing to do" with linear depth whatsoever..
IS;
The pressure excerted at a depth 10 ft seawater == 10 fsw?
The pressure excerted at 10 ft seawater == the pressure excerted at 3,05 meters of seawater?
You cannot just forget about the difference between fresh and salt water since that is the source of the .002 difference that is bugging you so much.I guess just answering my question was too hard..
is 10 feet of sewater == 10 fsw or not?
just FORGET about freshwater and saltwater differences for a second and answer that question if you want to "explain" why its not a typo in the op
Now you are just being silly. You clearly have a mental block for this, and it appears to be pointless to try to help you understand it.Thats not the topic of discussion whatsoever.. Good going on adding to the confusion..
The OP quoted a statement that states a difference between metric and imperial measures in saltwater, not between saltwater and freshwater..
Or are you actually suggesting that when its METERS/sw instead of FEET/sw that the water change salinity and that freshwater by default is metric and saltwater imperial?
The NOAA simply says that when making conversions for pressures in sw, the ratio to use to get from meters to feet is 1:.307 rather than the 1:.305 that is used to convert lengths expressed in meters and feet. The core reason for this apparent discrepancy is the greater density of sw as compared to the standard on which the pressure units were created, which was fresh water.