Intermagnet is an international oversight group which exists to establish a global network for geomagnetic observatories. This group establishes data standards and standard operating procedures for members and prospective members. Intermagnet has proposed
White, Timothy C.,Sauter, Edward A. esauter@usgs.gov,Stewart, Duff C.. Discovery and analysis of time delay sources in the USGS personal computer data collection platform (PCDCP) system. 2014-01-01.