WebFor shorter periods of observation, “mean high water” means the average height of the high waters after corrections are applied to eliminate known variations and to reduce the result to the equivalent of a mean 19-year value. (15) “Mean high-water line” means the intersection of the tidal plane of mean high water with the shore. (16 ... Webhigh water line means the high water line at mean high water springs; high water line of any waterfront lot shall mean the water's edge of such lot at a time when the reservoir water level is at the level of the dam spillway. high water line means the contour known as six hundred thirty -five referred to in United States Government elevations ...

Glossary - NOAA Shoreline Website

Webmeans the line of intersection of the land with the water's surface at the maximum height reached by a rising tide. The high tide line may be determined, in the absence of actual data, by a line of oil or scum along shore objects, a more or less continuous deposit of fine shell or debris on the foreshore or berm, other physical markings or Web1 mar. 2002 · The high water line is usually selected as the shoreline indicator for mapping purposes; it is defined as the wetted bound and by "markings left on the beach by the … dartmoor thunderbird cf

NOAA Tides & Currents

Web9 mai 2016 · Tidal Datum: Mean high water (MHW) Data Format: ESRI shapefile. Shorelines are not seamless and are distributed as zip files can be downloaded by state. ... First, a shore-parallel reference line was digitized as a permanent baseline for any future shoreline generation. Profiles were assessed at 20-meter intervals perpendicular to the … WebOther tidal (Mean High Water(MHW)) and geodetic (North American Vertical Datum 1988 (NAVD 88)) datums may also be used for specific reasons. The time meridian (TM) is the reference meridian used to … dartmoor shine frame