Synthesis of ionospheric electron density profiles with Epstein functions

Rawer, K.

doi:10.1016/0273-1177(88)90239-6

Cited by 49 publications

(28 citation statements)

References 12 publications

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“…During the past several decades, many ionospheric empirical models have been developed to describe the vertical profile of electron density; these models include Chapman, exponential, parabolic, and Epstein functions (Booker, 1977;Rawer et al, 1985;Rawer, 1988;Di Giovanni and Published by Copernicus Publications on behalf of the European Geosciences Union. Radicella, 1990;Reinisch and Huang, 2001;Reinisch et al, 2004Reinisch et al, , 2007.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the characteristics of ionospheric parameters obtained from FORMOSAT-3 and digisonde over Ascension Island

et al. 2013

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Electron density profile data obtained from the FORMOSAT-3 radio occultation (RO) measurements over Ascension Island are used to study the bottomside thickness parameter B0 in the International Reference Ionosphere (IRI) model, scale height around the F region peak height, and other F2 region parameters. The RO data were collected when the radio occultation occurred at Ascension Island (345.6° E, 8.0° S) during the solar minimum activity period from May 2006 to April 2008. Results show that the B0 values are in moderate agreement with the ground-based observations in the equinox period (correlation coefficient r = 0.682) and winter (r = 0.570), with a strong correlation in summer (r = 0.750). The seasonal and diurnal variations in B0 over Ascension Island show peak values during the daytime and in winter. In addition, the B0 values were underestimated and overestimated in the RO measurements during the daytime and nighttime, respectively. Moreover, the comparison of scale heights shows that scale heights obtained from the retrieved data and digisonde observations are weakly correlation in all three seasons. Furthermore, although the effective scale height (H_T) values were reverse of those obtained from the RO measurements and are higher during the nighttime than in the daytime, they are in good agreement with those from ground-based observations. This paper also provides a comprehensive discussion of the effect of the asymmetric ionospheric electron density profiles on RO measurements

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Section: Introductionmentioning

confidence: 99%

Comparison of the characteristics of ionospheric parameters obtained from FORMOSAT-3 and digisonde over Ascension Island

et al. 2013

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“…Booker, 1977;Rawer et al, 1985;Rawer, 1988;Di Giovanni and Radicella, 1990;Huang and Reinisch, 2001;Stankov et al, 2003). In these analytic functions, in addition to the density and height of F2-layer peak, the scale height is an important parameter to describe the ionospheric profile.…”

Section: Introductionmentioning

confidence: 99%

Quiet-condition variations in the scale height at F2-layer peak at Jicamarca during solar minimum and maximum

Lee

Reinisch

2007

Ann. Geophys.

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Abstract. This study is the first attempt to examine the quiet-condition variations in scale height (Hm) near the F2-layer peak in the equatorial ionosphere. The data periods of Hm derived from the Jicamarca ionograms are JanuaryDecember 1996 and April 1999-March 2000. The results show that the greatest and smallest Hm values are generally at 11:00-12:00 LT and 04:00-05:00 LT, respectively. Additionally, the sunrise peak occurs at 06:00 LT only during solar minimum. The post-sunset peaks in the equinoctial and summer months are more obvious during solar maximum. The Hm difference between solar minimum and maximum are significant from afternoon to midnight. On the other hand, the Hm values during 07:00-10:00 LT for solar minimum are close to those for solar maximum. Furthermore, the correlation of Hm with the critical frequency (foF2) of F2-layer is generally low. In contrast, the correlation between Hm and the peak height (hmF2) of F2-layer is high. For Hm and the thickness parameter (B0) of F2-layer, the correlation between these two parameters is almost perfect.

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“…The retrieval of the corresponding electron density distribution is performed in two main stages: construction of the bottom-side electron profile (i.e. below the F2-layer density peak height, (Rawer, 1983(Rawer, , 1988Di Giovanni and Radicella, 1990 …”

Section: Methodsmentioning

confidence: 99%

Local ionospheric electron density profile reconstruction in real time from simultaneous ground-based GNSS and ionosonde measurements

Stankov

Stegen

Muhtarov

et al. 2011

Advances in Space Research

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The purpose of the LIEDR (local ionospheric electron density profile reconstruction) system is to acquire and process data from simultaneous ground-based total electron content (TEC) and digital ionosonde measurements, and subsequently to deduce the vertical electron density distribution above the ionosonde's location. LIEDR is primarily designed to operate in real time for service applications and, for research applications and further development of the system, in a post-processing mode. The system is suitable for use at sites where collocated TEC and digital ionosonde measurements are available. Developments, implementations, and some preliminary results are presented and discussed in view of possible applications.

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Synthesis of ionospheric electron density profiles with Epstein functions

Cited by 49 publications

References 12 publications

Comparison of the characteristics of ionospheric parameters obtained from FORMOSAT-3 and digisonde over Ascension Island

Comparison of the characteristics of ionospheric parameters obtained from FORMOSAT-3 and digisonde over Ascension Island

Quiet-condition variations in the scale height at F2-layer peak at Jicamarca during solar minimum and maximum

Local ionospheric electron density profile reconstruction in real time from simultaneous ground-based GNSS and ionosonde measurements

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