Link to Data from Boulder CO Ground Magnetometers and Spectragrams
USGS Ground Magnetometer One-Second Data Available Via FTP
ftp site: igpp.ucla.edu Login: anonymous directory: /scratch/event_study gzipped and tarred ascii files for Nov. 3-4, 1993: bou_geomag.gz.tar (2.3 Mb)
Last Modified: August 28, 1995