Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh51a0252s&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SH51A-0252
Physics
0525 Data Management, 2104 Cosmic Rays, 7514 Energetic Particles (2114), 7924 Forecasting (2722)
Scientific paper
The worldwide network of standardised neutron monitors is, after 50 years, still the state-of-the-art instrumentation to measure spectral variations of the primary cosmic ray component. These measurements are an ideal complement to space based cosmic ray measurements. Data from the approximately 50 IGY and NM64 neutron monitors is stored locally but also available through data collections sites like the World Data Center (WDC) or the IZMIRAN ftp server. The data from the WDC is in a standard format, but only hourly values are available. IZMIRAN collects the data in the best available time resolution, but the data arrives on the ftp server only hours, sometimes days, after the measurements. Also, the high time-resolution measurements of the different stations do not have a common format, a conversion routine for each station is needed before they can be used for scientific analysis. Supported by the framework 7 program of the European Commission, we are setting up a real-time database where high resolution cosmic ray measurements will be stored and accessible immediately after the measurement. Stations that do not have 1-minute resolution measurements will be upgraded to 1-minute or better resolution with an affordable standard registration system, that will submit the measurements to the database via the internet in real-time. This resolves the problem of different data formats and for the first time allows to use real-time cosmic ray measurements for space weather predictions. Access to the NMDB database will be open to all users, and as a first step data from twelve participating groups will be collected in the database. The availability of the data from all European stations and stations from neighbouring countries from one real- time database will simplify the access of the Virtual Cosmic Ray Observatory (ViCRO) to measurements from a significant number of neutron monitors.
Heber Bernd
Rother O. M.
Steigies Christian T.
Wimmer-Schweingruber Robert F.
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