Comparison of COSMIC occultation-based electron density profiles and TIP observations with Arecibo incoherent scatter radar data
Article first published online: 8 AUG 2009
Copyright 2009 by the American Geophysical Union.
Volume 44, Issue 4, August 2009
How to Cite
2009), Comparison of COSMIC occultation-based electron density profiles and TIP observations with Arecibo incoherent scatter radar data, Radio Sci., 44, RS4011, doi:10.1029/2008RS004087., , , , , and (
- Issue published online: 8 AUG 2009
- Article first published online: 8 AUG 2009
- Manuscript Accepted: 18 MAY 2009
- Manuscript Revised: 8 MAY 2009
- Manuscript Received: 5 NOV 2008
- Abel transform
 In June 2006 an early opportunity arose to compare occultation-based electron density profiles with incoherent scatter radar data. The former were made available by the constellation of satellites called COSMIC. We find that the value of the peak plasma density in the F region is reasonably well characterized but that the altitude of the peak is overestimated above about 300 km and underestimated below that height. A simple Abel transform is not suitable for determining the E region profiles, even in daytime. We also compared the emission strength recorded by the Tiny Ionospheric Photometer (TIP) on board COSMIC to the Arecibo measurement of the TEC as part of an ongoing effort to calibrate the former. The TIP and Arecibo data both show the development of an ionospheric storm of the type referred to as high-intensity, long-duration continuous AE activity. It is surprising that such a modest magnetic storm (Dst ∼ −2.5 nT) resulted in the anomaly moving to nearly 30° magnetic latitude.