WDC-EUROPE-STP also mirrors the general WDC Home Pages produced by WDC-USA at Boulder, Colorado (see Chapter 2 F). The provisional address is:

http://www.wdc.rl.ac.uk/wdcmain

Maintained by: Central Laboratories of the Research Councils, U.K.

Summary of Data Held:

Ionosphere: Vertical soundings for about 300 stations, mostly from 1957 onwards; hourly and monthly median values of scaled parameters; film ionograms; fplots; absorption data from pulse echo, riometers, and field strength measurements.

SolarGeophysical Indices: Final, provisional and forecast sunspot numbers; solar 10.7 cm radio flux; Kp, Ap, Dst, AE, IF2 and IG12.

Reports and forecasts of solargeophysical conditions: Solar activity; geomagnetic activity; radio propagation conditions by daily fax and e-mail; reports from WDC-USA Boulder, Germany, Australia, Russia and India.

Solar wind data: Magnetic field and plasma data from 1963 onwards (IMP-X and AMPTE-UKS/CCE).

User Services: Open to visitors during normal working hours. Access from highway A34; railway station, Didcot Parkway (10 km). Online database of solar-terrestrial parameters, ionospheric data and MSIS thermospheric model.

Data Products, Publications, Catalogs: Joint WDC catalog for ionospheric data; ionospheric bulletins for Slough/Chilton, Lerwick and Port Stanley; bulletins of ionospheric indices IG12 and IF2.