Resolution No.12 (1977): Thanks to WDC-A (STP) for AE derivation

IAGA, thanks World Data Center A for Solar-Terrestrial Physics for the yearly publication of AE- indices from 1966 up to, and including, 1974, and for the monthly publication of AE-indices which have been prepared specially for the International Magnetospheric Study, beginning with January 1976, and urges

  1. contributing stations to maintain the rapid flow of magnetograms necessary for the production of these indices,
  2. other World Data Centres to participate in the digitisation required for the derivation of the indices, both for prompt use during the IMS and for publication in the IAGA Bulletin 32 series, and continues to urge the establishment of new magnetic observatories to improve the distribution, in both geomagnetic latitude and geomagnetic longitude, of the contributing stations.