An instrument performance and data quality standard for intermagnet one-second data exchange

With the advent of developments in instrumentation, data acquisition and data dissemination, an increasing number of observatories are producing a filtered one-second data product in addition to traditional one-minute data, hourly means, daily means, monthly means and annual means. An INTERMAGNET survey of the user community in 2005 concluded that there is a desire for one-second data to be made available through the INTERMAGNET network and that, as is the case for one-minute data, a minimum standard of instrument performance and data quality should be set for definitive one-second data. Here, the INTERMAGNET Observatories & Standards Subcommittee introduces such a one-second data standard resulting from consultation with the scientific community and instrument developers.