... Mailing address: Dr. Sandro M. Radicella, ARPL, The Abdus Salam ICTP, Strada Costiera 11, 341... more ... Mailing address: Dr. Sandro M. Radicella, ARPL, The Abdus Salam ICTP, Strada Costiera 11, 34151 Trieste, Italy; e.mail: rsandro@ictp.it Vol52,3,2009 20-09-2009 19:06 Pagina 359 Page 2. 360 ... measurements performed onboard one of the two US-German satellites GRACE. ...
2014 24th International Conference Radioelektronika, 2014
ABSTRACT This paper deals with estimation of critical frequencies foF2 using the GPS measurement.... more ABSTRACT This paper deals with estimation of critical frequencies foF2 using the GPS measurement. The ionosphere affects the time of flight of the signals between the satellite and the Earth. It is therefore possible to use the signals from the GPS for monitoring of ionospheric characteristics. We use measurements from the digisonde DPS-4D and the dual frequency GPS receiver TOPCON at the station Pruhonice, Czech Republic (50°N, 14.5°E).
Measurements of plasma motion brings important information about the state of the ionosphere. In ... more Measurements of plasma motion brings important information about the state of the ionosphere. In the present study we concentrate on the data measured by the ionospheric station Průhonice (50.0N, 14.6E) in the Central Europe. First, we briefly introduce a new quality control method included in the procedure of evaluation of plasma drifts. The method consists of a three-step selection of skymap points and application of the standard DDA algorithm on the corrected skymaps. This selection method guarantees a better quality of obtained drift velocities and improves further interpretation of plasma motion (Kouba et al., 2006 and Kouba et al., 2007). We demonstrate application of the method on the data set collected in 2006, during a period of exceptionally low geomagnetic and solar activity. Using histograms of horizontal and vertical velocity components we found prevailing directions of plasma motion corresponding to specified ranges of velocities. Our preliminary results show how F- re...
... Mailing address: Dr. Sandro M. Radicella, ARPL, The Abdus Salam ICTP, Strada Costiera 11, 341... more ... Mailing address: Dr. Sandro M. Radicella, ARPL, The Abdus Salam ICTP, Strada Costiera 11, 34151 Trieste, Italy; e.mail: rsandro@ictp.it Vol52,3,2009 20-09-2009 19:06 Pagina 359 Page 2. 360 ... measurements performed onboard one of the two US-German satellites GRACE. ...
2014 24th International Conference Radioelektronika, 2014
ABSTRACT This paper deals with estimation of critical frequencies foF2 using the GPS measurement.... more ABSTRACT This paper deals with estimation of critical frequencies foF2 using the GPS measurement. The ionosphere affects the time of flight of the signals between the satellite and the Earth. It is therefore possible to use the signals from the GPS for monitoring of ionospheric characteristics. We use measurements from the digisonde DPS-4D and the dual frequency GPS receiver TOPCON at the station Pruhonice, Czech Republic (50°N, 14.5°E).
Measurements of plasma motion brings important information about the state of the ionosphere. In ... more Measurements of plasma motion brings important information about the state of the ionosphere. In the present study we concentrate on the data measured by the ionospheric station Průhonice (50.0N, 14.6E) in the Central Europe. First, we briefly introduce a new quality control method included in the procedure of evaluation of plasma drifts. The method consists of a three-step selection of skymap points and application of the standard DDA algorithm on the corrected skymaps. This selection method guarantees a better quality of obtained drift velocities and improves further interpretation of plasma motion (Kouba et al., 2006 and Kouba et al., 2007). We demonstrate application of the method on the data set collected in 2006, during a period of exceptionally low geomagnetic and solar activity. Using histograms of horizontal and vertical velocity components we found prevailing directions of plasma motion corresponding to specified ranges of velocities. Our preliminary results show how F- re...
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