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<h1>Space Weather Systems</h1>
<h2>Real-Time Ionospheric Characterization:<br>Highlights</h2>
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<div class="box"><ul><li> Specification of ionosphere over any region of the earth.</li>
<li> Self-consistency in terms of experimental data and constrained by ionospheric models</li>
<li> User-defined ionospheric models</li>
<li> Fully adjustable location, size, latitude, longitude, altitude, and time grid sizes of region of interest</li>
<li> 3-D and 4-D specifications within constraints</li>
<li> Compatibility with a variety of data; TEC from GPS, GPSMET, ground-based, satellite-borne beacons and/or receivers, ionosonde (vertical and oblique), radio propagation data, radar data, optical, WISBY, transponders, and known emitters</li>
<li> Various techniques and toolkits</li>
<li> User-friendliness, can be used at various levels of sophistication</li>
<li> Ability to supplement incomplete data or replace absent data with theoretical models</li>
<li> Ionospheric parameters, propagation, prediction, and TEC values obtainable from 4-D ionospheric characterizations</li>
<li> "Objective" determination of ionospheric heights using "premotography" module. Integral-based approach, instead of the difference-base approach of tomographic algorithms.</li>
<li> Various tomographic techniques that are used for further improvements of density distributions.</li>
<li> Use of several expertly determined initial guesses to assure confidence in the reconstructed profiles.</li>
<li> Plasmaspheric model, allowing efficient use of GPS data. </li></ul></div></div><br>
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<h2>Space Weather Systems</h2>
<ul>
<li> <a href="spacehf.html">HF Diagnostic System for the Ionosphere</a></li>
<li> <a href="spacetopside.html">Topside Sounder</a></li>
<li> <a href="spaceiono.html">Dual-Frequency Ionospheric Monitor</a></li>
<li> <a href="spacerx.html">Satellite-Borne GPS Receivers</a></li>
<li> <b><a href="spacertic.html">Real-Time Ionospheric Characterization Software</a></b></li>
<li> <a href="spaceprop.html">Improved Propagation Prediction Software</a></li>
<li> <a href="spacemeteor.html">Multifrequency Meteorological Radar</a></li>
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<h3>Further RTIC Info:</h3>
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<li><a href="spacerticspec.html">Specification Issues</a></li>
<li><b>Highlights</b></li>
<li><a href="spacerticuses.html">Potential Uses</a></li>
<li><a href="spacerticweb.html">Operational Needs & RTIC on the Web</a></li>
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