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Juchnikowski, G.
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- PublicationOpen AccessThe Kriging method of ionospheric parameter f0F2 instantaneous mapping(1996-08)
; ; ; ;Stanislawska, I.; Space Research Centre, Polish Academy of Sciences, Warsaw, Poland ;Juchnikowski, G.; Space Research Centre, Polish Academy of Sciences, Warsaw, Poland ;Cander, L. R.; Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, U.K.; ; This paper discusses the spatial variation of the ionospheric characteristic f0F2 in the PRIME area (35o-55o N,- 10°-20°E) expressed in terms of the variogram and the Kriging mapping method as modelling of an instantaneous experimental situation. It is shown that by applying this method to the real data it is possible to estimate f0F2 at any unsampled location within the restricted area with satisfactory accuracy.258 440 - PublicationOpen AccessA single-station prediction model as a source of additional screen-points for PRIME model(1996-08)
; ; ;Stanislawska, I.; Space Research Centre, Polish Academy of Sciences, Warsaw, Poland ;Juchnikowski, G.; Space Research Centre, Polish Academy of Sciences, Warsaw, Poland; The aim of this paper is to present a possible improvement to the global map of the f0F2 parameter obtained using statistical or any other model, by adding to it the additional screen points. The proposed method is illustrated by combining the CCIR model and a set of single points data. The comparison of the pure global CCIR model and CCIR model modified by the additional screen-points with measurements for different seasons and different solar activity is presented. The results show significant improvement of the f0F2 map.159 133 - PublicationOpen AccessAutoscala applied at the Ionospheric Station of Warsaw(2008-10-17)
; ; ; ; ;Pezzopane, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Scotto, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Juchnikowski, G.; Space Research Center, Warsaw, Poland ;Stanislawska, I.; Space Research Center, Warsaw, Poland; ; ; A new ionosonde VISRC2, built at the Space Research Center of Warsaw, Poland, was installed at Warsaw (52.2 N, 21.1 E) in march 2007. The main characteristics of this ionosonde are: transmitted power 10 kW, pulse duration 100 μs, sampling period 5 μs, frequency resolution 25 kHz, and capability to distinguish ordinary and extraordinary reflections. This ionosonde, able to record the sounding only as a binary file, was not equipped with a tool to perform an automatic scaling of the recorded trace. From October 2008 Autoscala (Pezzopane and Scotto, 2005, 2007, 2008; Scotto and Pezzopane, 2007) is routinely applied to the ionograms recorded by this ionosonde.522 268