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Re: A question for the geodisists
From: Andrés Ruiz
Date: 2013 Dec 21, 09:24 +0100
From: Andrés Ruiz
Date: 2013 Dec 21, 09:24 +0100
Generally the causes of an effect are not unique.
Paul clearly explains the problem from a purely geodetic point of view. To this may be joined measurement and data processing errors. Just as starting data not entirely accurate or not well known, (survey methods, terrestrial magnetic field varies over time, ...)