A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers

Stephen C. Collins; John M.C. Plane; Michael C. Kelley; Timothy G. Wright; Pavel Soldán; Timothy J. Kane; Andrew Gerrard; Brent W. Grime; Rosie J. Rollason; Jonathan S. Friedman; Sixto A. González; Qihou Zhou; Michael P. Sulzer; Craig A. Tepley

doi:10.1016/S1364-6826(02)00129-3

A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers

Stephen C. Collins, John M.C. Plane, Michael C. Kelley, Timothy G. Wright, Pavel Soldán, Timothy J. Kane, Andrew Gerrard, Brent W. Grime, Rosie J. Rollason, Jonathan S. Friedman, Sixto A. González, Qihou Zhou, Michael P. Sulzer, Craig A. Tepley

Center For Solar Terrestrial Research - Big Bear Solar Observatory

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

Over two campaigns in 1998 and 1999, multiple sporadic sodium events were observed by the Arecibo Observatory sodium density lidar while simultaneously monitoring the plasma density using the incoherent scatter radar. In this paper, we test the theoretical explanation proposed by Cox and Plane (1998) where Na⁺ in a plasma layer is neutralized via an ion-molecule mechanism to form a sporadic sodium layer. A particular challenge is to interpreter observations made in a Eulerian frame of observation where the spatial and temporal characteristics of events cannot easily be separated. The reaction scheme in the original mechanism is modified to include the reactions NaO⁺ + N₂ → Na⁺ .N₂ + O and NaO⁺ + O₂ → Na⁺ + O₃, following the results of theoretical quantum calculations. Six unique case studies of sporadic sodium layers are presented here, and excellent agreement between simulation and observations was obtained for five of them.

Original language	English (US)
Pages (from-to)	845-860
Number of pages	16
Journal	Journal of Atmospheric and Solar-Terrestrial Physics
Volume	64
Issue number	7
DOIs	https://doi.org/10.1016/S1364-6826(02)00129-3
State	Published - 2002

All Science Journal Classification (ASJC) codes

Geophysics
Atmospheric Science
Space and Planetary Science

Keywords

Atmospheric composition and structure
Ion-molecule chemistry of the atmosphere
Ionosphere
Sodium lidar
Sporadic E layers
Sporadic sodium layers

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10.1016/S1364-6826(02)00129-3

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Collins, S. C., Plane, J. M. C., Kelley, M. C., Wright, T. G., Soldán, P., Kane, T. J., Gerrard, A., Grime, B. W., Rollason, R. J., Friedman, J. S., González, S. A., Zhou, Q., Sulzer, M. P., & Tepley, C. A. (2002). A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers. Journal of Atmospheric and Solar-Terrestrial Physics, 64(7), 845-860. https://doi.org/10.1016/S1364-6826(02)00129-3

@article{704f5157da0d429d8211e4141ce83943,

title = "A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers",

abstract = "Over two campaigns in 1998 and 1999, multiple sporadic sodium events were observed by the Arecibo Observatory sodium density lidar while simultaneously monitoring the plasma density using the incoherent scatter radar. In this paper, we test the theoretical explanation proposed by Cox and Plane (1998) where Na+ in a plasma layer is neutralized via an ion-molecule mechanism to form a sporadic sodium layer. A particular challenge is to interpreter observations made in a Eulerian frame of observation where the spatial and temporal characteristics of events cannot easily be separated. The reaction scheme in the original mechanism is modified to include the reactions NaO+ + N2 → Na+ .N2 + O and NaO+ + O2 → Na+ + O3, following the results of theoretical quantum calculations. Six unique case studies of sporadic sodium layers are presented here, and excellent agreement between simulation and observations was obtained for five of them.",

keywords = "Atmospheric composition and structure, Ion-molecule chemistry of the atmosphere, Ionosphere, Sodium lidar, Sporadic E layers, Sporadic sodium layers",

author = "Collins, {Stephen C.} and Plane, {John M.C.} and Kelley, {Michael C.} and Wright, {Timothy G.} and Pavel Sold{\'a}n and Kane, {Timothy J.} and Andrew Gerrard and Grime, {Brent W.} and Rollason, {Rosie J.} and Friedman, {Jonathan S.} and Gonz{\'a}lez, {Sixto A.} and Qihou Zhou and Sulzer, {Michael P.} and Tepley, {Craig A.}",

note = "Funding Information: The modeling work at the University of East Anglia was supported by grant GR3/11754 from the Natural Environment Research Council. The Arecibo Observatory is operated by Cornell University under a cooperative agreement with the National Science Foundation. The authors are indebted to Ra{\'u}l Garcia for his efforts and assistance with the lidar, and Angel Alejandro for processing the ISR data. We also thank the EPSRC and NERC. Special thanks also goes to the reviewers of this manuscript for their helpful suggestions. ",

year = "2002",

doi = "10.1016/S1364-6826(02)00129-3",

language = "English (US)",

volume = "64",

pages = "845--860",

journal = "Journal of Atmospheric and Solar-Terrestrial Physics",

issn = "1364-6826",

publisher = "Elsevier Limited",

number = "7",

}

Collins, SC, Plane, JMC, Kelley, MC, Wright, TG, Soldán, P, Kane, TJ, Gerrard, A, Grime, BW, Rollason, RJ, Friedman, JS, González, SA, Zhou, Q, Sulzer, MP & Tepley, CA 2002, 'A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers', Journal of Atmospheric and Solar-Terrestrial Physics, vol. 64, no. 7, pp. 845-860. https://doi.org/10.1016/S1364-6826(02)00129-3

TY - JOUR

T1 - A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers

AU - Collins, Stephen C.

AU - Plane, John M.C.

AU - Kelley, Michael C.

AU - Wright, Timothy G.

AU - Soldán, Pavel

AU - Kane, Timothy J.

AU - Gerrard, Andrew

AU - Grime, Brent W.

AU - Rollason, Rosie J.

AU - Friedman, Jonathan S.

AU - González, Sixto A.

AU - Zhou, Qihou

AU - Sulzer, Michael P.

AU - Tepley, Craig A.

N1 - Funding Information: The modeling work at the University of East Anglia was supported by grant GR3/11754 from the Natural Environment Research Council. The Arecibo Observatory is operated by Cornell University under a cooperative agreement with the National Science Foundation. The authors are indebted to Raúl Garcia for his efforts and assistance with the lidar, and Angel Alejandro for processing the ISR data. We also thank the EPSRC and NERC. Special thanks also goes to the reviewers of this manuscript for their helpful suggestions.

PY - 2002

Y1 - 2002

N2 - Over two campaigns in 1998 and 1999, multiple sporadic sodium events were observed by the Arecibo Observatory sodium density lidar while simultaneously monitoring the plasma density using the incoherent scatter radar. In this paper, we test the theoretical explanation proposed by Cox and Plane (1998) where Na+ in a plasma layer is neutralized via an ion-molecule mechanism to form a sporadic sodium layer. A particular challenge is to interpreter observations made in a Eulerian frame of observation where the spatial and temporal characteristics of events cannot easily be separated. The reaction scheme in the original mechanism is modified to include the reactions NaO+ + N2 → Na+ .N2 + O and NaO+ + O2 → Na+ + O3, following the results of theoretical quantum calculations. Six unique case studies of sporadic sodium layers are presented here, and excellent agreement between simulation and observations was obtained for five of them.

AB - Over two campaigns in 1998 and 1999, multiple sporadic sodium events were observed by the Arecibo Observatory sodium density lidar while simultaneously monitoring the plasma density using the incoherent scatter radar. In this paper, we test the theoretical explanation proposed by Cox and Plane (1998) where Na+ in a plasma layer is neutralized via an ion-molecule mechanism to form a sporadic sodium layer. A particular challenge is to interpreter observations made in a Eulerian frame of observation where the spatial and temporal characteristics of events cannot easily be separated. The reaction scheme in the original mechanism is modified to include the reactions NaO+ + N2 → Na+ .N2 + O and NaO+ + O2 → Na+ + O3, following the results of theoretical quantum calculations. Six unique case studies of sporadic sodium layers are presented here, and excellent agreement between simulation and observations was obtained for five of them.

KW - Atmospheric composition and structure

KW - Ion-molecule chemistry of the atmosphere

KW - Ionosphere

KW - Sodium lidar

KW - Sporadic E layers

KW - Sporadic sodium layers

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UR - http://www.scopus.com/inward/citedby.url?scp=0036067931&partnerID=8YFLogxK

U2 - 10.1016/S1364-6826(02)00129-3

DO - 10.1016/S1364-6826(02)00129-3

M3 - Article

AN - SCOPUS:0036067931

SN - 1364-6826

VL - 64

SP - 845

EP - 860

JO - Journal of Atmospheric and Solar-Terrestrial Physics

JF - Journal of Atmospheric and Solar-Terrestrial Physics

IS - 7

ER -

A study of the role of ion-molecule chemistry in the formation of sporadic sodium layers

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All Science Journal Classification (ASJC) codes

Keywords

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