Ion Chemistry of the Ionosphere at E- and F-Region Altitudes: A Review

Павлов, А. В.

doi:10.1007/s10712-012-9189-8

Cited by 29 publications

(25 citation statements)

References 127 publications

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“…This numerical technique is similar to that described by Hastings and Roble (1977). The solving patterns of such model calculations were given, for example, by Marov and Kolesnichenko (1987), Pavlov (1994), Pavlov et al (1999), Pavlov and Foster (2001), Pavlov (2012), and Pavlov and Pavlova (2013). The model calculates the neutral number densities in the altitude range from the Earth's surface to 400 km altitude with a time step of 2 min.…”

Section: Appendix 1 One-dimensional Time-dependent Neutral Atmospherimentioning

confidence: 99%

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Influence of Atmospheric Solar Radiation Absorption on Photodestruction of Ions at D-Region Altitudes of the Ionosphere

Павлов

2016

Surv Geophys

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The influence of atmospheric solar radiation absorption on the photodetachment, dissociative photodetachment, and photodissociation rate coefficients (photode-, and NO ? (CO 2 ) at D-region altitudes of the ionosphere is studied. A numerical one-dimensional time-dependent neutral atmospheric composition model has been developed to estimate this influence. The model simulations are carried out for the geomagnetically quiet time period of 15 October 1998 at moderate solar activity over the Boulder ozonesonde. If the solar zenith angle is not more than 90°then the strongest influence of atmospheric solar radiation absorption on photodestruction of ions is found for photodissociation of CO 4 -ions when CO 3 -ions are formed. It follows from the calculations that decreases in the photodestruction rate coefficients of ions under consideration caused by this influence are less than 2 % at 70 km altitude and above this altitude if the solar zenith angle does not exceed 90°.

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Section: Appendix 1 One-dimensional Time-dependent Neutral Atmospherimentioning

confidence: 99%

“…Photochemical reactions are important in the balance of ionization of the ionosphere that determines ion and electron number densities (see, e.g., Schunk and Nagy 2009;Pavlov 2012Pavlov , 2014Pavlov , 2015. The present study is concerned with the current understanding of photochemistry of ions at D-region altitudes.…”

Section: Introductionmentioning

confidence: 99%

Influence of Atmospheric Solar Radiation Absorption on Photodestruction of Ions at D-Region Altitudes of the Ionosphere

Павлов

2016

Surv Geophys

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“…This generally accepted approach is used in this review in the analysis of rate coefficients of the binary ion-neutral chemical reactions presented in Table 6. The rate coefficients of reactions 1-30 of Table 6 are discussed in detail by Pavlov (2012) where uncertainties of these coefficients and temperature ranges of measurements are given. As a result, only their values and the corresponding references are listed in Table 6, except for the rate coefficient of reactions 1, 2, and 23-25 discussed below.…”

Section: Chemical Reactions Of Positive Non-metallic Ions With Thermamentioning

confidence: 99%

“…The regions between 90-95 km and 140-160 km (Eregion), and from 140-160 km to 1,000 km (F-region) are not considered in this review. The chemistry of ions at E-and F-region altitudes of the ionosphere was reviewed by Pavlov (2012). The lowest ionospheric D-region extends in height from 50-60 km to 90-95 km.…”

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Photochemistry of Ions at D-region Altitudes of the Ionosphere: A Review

Павлов

2013

Surv Geophys

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A thermospheric Na layer event observed up to 140 km over Syowa Station (69.0°S, 39.6°E) in Antarctica

Tsuda

Chu

Nakamura

et al. 2015

Geophysical Research Letters

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We report a thermospheric Na layer event (up to 140 km) observed by lidar in the night of 23–24 September 2000 at Syowa (69.0°S, 39.6°E), Antarctica. The thermospheric Na number densities were 2–9 cm−3 at 110–140 km, 3 orders of magnitude smaller than the peak density of the normal layer at 80–110 km. The thermospheric Na layers exhibited a wave‐like structure with a period of 1–2 h. The colocated ionospheric/auroral observations showed sporadic E layers over Syowa through the night and an enhancement of the ionospheric/auroral activity around south side of Syowa at the event beginning. Adopting the theory by Chu et al. (2011), we hypothesize that the thermospheric Na layers are neutralized from converged Na+ layers. An envelope calculation shows good consistency with the observations.

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Ion Chemistry of the Ionosphere at E- and F-Region Altitudes: A Review

Cited by 29 publications

References 127 publications

Influence of Atmospheric Solar Radiation Absorption on Photodestruction of Ions at D-Region Altitudes of the Ionosphere

Influence of Atmospheric Solar Radiation Absorption on Photodestruction of Ions at D-Region Altitudes of the Ionosphere

Photochemistry of Ions at D-region Altitudes of the Ionosphere: A Review

A thermospheric Na layer event observed up to 140 km over Syowa Station (69.0°S, 39.6°E) in Antarctica

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