Resolution No.5 (1995): Field-survey work and production of new charts

IAGA, recognising the importance of field-surveys and charts for describing the surface magnetic filed of the Earth, and noting that charts should be updated at least every 10 year to take into account the secular change of the geomagnetic field, encourages the relevant agencies from different countries to continue to support field-survey work and the production of new charts for epoch 2000AD.