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Explore the challenges faced in the Spanish repeat station network due to urban growth, and the decision to locate stations in reserve zones. The variometric method's precision advantages over classical approaches are also discussed.
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4th MagNetE WORKSHOPON EUROPEAN GEOMAGNETIC REPEAT STATION SURVEYHelsinki, Finland, 8-10 June 2009 SPANISH REPEAT STATIONS SURVEYS (2007 AND 2008)I.Socías, P.Covisa, C.Domingo, J.Fernandez and V.MarinInstituto Geográfico Nacional. Spain.
CONCLUSSIONS – In view of the problems had in the Spanish repeat station network because of changes in the civil conditions, mainly due to the growing of towns and villages, its been decided to locate them at reserve zones. The time spent looking for these places in the last years has made impossible to do the complete survey in these two years, as normally is done.
CONCLUSSIONS • The variometric method has proved to be more precise than the classical one, not only in the variometric stations but also for repeat stations at a distance of 150-200 kilometres