30s raw data from the campaign stations

CRL campaigns (distributed by the GPSCOPE server)

• May 1990
• September 1991
• November 1992
• May 1993
• June 1995
• October 1995
• April 1999
• October 2001
• September 2002
• October 2003
• September 2006
• June 2008
• September 2010
• April 2011
• September 2011
• September 2013