2010/8/24 Alan Mintz <alan_mintz+...@earthlink.net>: > I would expect the opposite - the elevation of the water surface above "sea > level". It appears that Google Earth does it this way (e.g. Lake Arrowhead ~ > 34.258476, -117.182861).
If you look at other maps e.g. here: http://mappery.com/Elevation-Contours-of-Lake-Okeechobee-Map you can see that elevation (in this case) is used for the ground, not the surface. on the other hand, here elevation is used for the surface: http://www.usbr.gov/uc/water/rsvrs/ops/crsp_40_gc.html http://nd.water.usgs.gov/devilslake/data/dlelevation.html > depth=* should then be used to tag the depth of the > floor below the water surface. yes, depth for tagging the water-depth, but that doesn't help for elevation. cheers, Martin _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging