Resolution No.4 (2003): Magnetic repeat station surveys: cooperation and standardisation
IAGA, recognising the importance of data from magnetic repeat stations for modelling the geomagnetic field, noting the success of the European initiative for standardising networks of repeat stations and achieving uniform station density and common repetition intervals, encourages countries in all regions to undertake magnetic repeat station surveys and to cooperate with neighbouring countries in order to develop regional and international standardisation.