2 Citations
The GR network is the national seismological network in Germany. It contains the German seismic backbone broad-band network (GRSN, German Regional Seismic
Network) , the Graefenberg broad-band array, the short-period stations of the GERES array (German stations of the International Monitoring System, IMS, in the frame of the Comprehensive Test Ban Treaty, CTBT) and some associated stations, partly broad-band and partly short-period. It is operated by the Federal Institute for Geosciences and Natural Resources (BGR) in cooperation with a number of national partner institutions (see DOI landing page for details). The data of the GR backbone network are continuous and not subject to any access restrictions.
The first stations in this network were the array elements of Graefenberg installed between 1976 and 1980 forming the first digital broad-band array on earth. It provides continuous data records from 1976 until today. The nation-wide network GRSN was added in 1991 and is growing in number of sites since then. By 2019 the GR network consists about 50 broad-band backbone stations plus the stations of the GERES array.