NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Finding the elevation of your house
From: JC Sutherland
Date: 2002 Mar 1, 23:44 GMT
From: JC Sutherland
Date: 2002 Mar 1, 23:44 GMT
Just a sideways idea for solving your problem. All Metereological stations supplying data to the international data network are required to reduce their barometer reading to sea level by applying a correction dependant on their height above same. Perhaps you could phone phone them and if they can help it may be possible to recalibrate your map. Clive. http://webmail.rya-online.net