What is Mean High Water?
With the recent court ruling that confirms the extension of private ownership of beachfront property to the mean high water (MHW) line (specifically in the Misquamicut area of Westerly, RI), the inevitable question from both coastal property owners and beach visitors will be "where is the mean high water line"?
While there are several "rule of thumb" gauges for estimating the MHW line, the only precise and accurate method is to place the MHW elevation on the shoreline, typically utilizing survey techniques.
It should be noted that even this accepted technique is only valid for a relatively short period of time as any change in the shoreline configuration (from storms or tidal actions) will change the horizontal location of the MHW elevation.
Still, we believe that RTK GPS technology offers the most cost-effective solution to placing this critical feature on the shoreline. Call us if we can provide this service to you or your clients.
Highest Wave on Record
[From GPS World, January 2017]. The World Meteorological Organization announced the highest wave on record: a behemoth that towered 19 meters (62.3 feet) above the North Atlantic. Examination of data sent by an automated buoy showed the monster wave rose on February 4, 2013, at a remote spot between Britain and Iceland.
Automated buoys are vital tools for oceanographers, sending back data on sea currents, temperature and swells for seafarers, climate researchers and others.
Many buoys are GPS-equipped to measure water height. "We suspect this one was, though it has not been confirmed."