Search results
Results from the WOW.Com Content Network
An ionospheric model is a mathematical description of the ionosphere as a function of location, altitude, day of year, phase of the sunspot cycle and geomagnetic activity. Geophysically, the state of the ionospheric plasma may be described by four parameters: electron density, electron and ion temperature and, since several species of ions are ...
Help; Learn to edit; Community portal; Recent changes; Upload file; Special pages
What links here; Upload file; Special pages; Printable version; Page information
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
The following other wikis use this file: Usage on az.wikipedia.org Dövrəli su təchizatı sistemi; Usage on de.wikipedia.org Trinkwasser; Usage on el.wikipedia.org
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
The model can represent variation of these quantities with altitude, latitude, longitude, date, and time of day. It can also make use of solar, ionospheric and geomagnetic indices to refine the model. Vertical total electron content (TEC) may be derived. (A snapshot of model predictions is shown in the latitude vs. longitude map above). [6]
The signal transmitted from the satellite to the receiver crosses the ionospheric shell in the so-called ionospheric pierce point (IPP). The zenith angle at the IPP is z' and the signal arrives at the receiver with zenith angle z. Here R is the mean Earth radius, H is the mean height of the ionosphere shell.