Latitudinal profile of UV nightglow and electron precipitations

A. V. Dmitriev; H. C. Yeh; M. I. Panasyuk; V. I. Galkin; G. K. Garipov; B. A. Khrenov; P. A. Klimov; L. L. Lazutin; I. N. Myagkova; S. I. Svertilov

doi:10.1016/j.pss.2011.02.010

Latitudinal profile of UV nightglow and electron precipitations

A. V. Dmitriev, H. C. Yeh, M. I. Panasyuk, V. I. Galkin, G. K. Garipov, B. A. Khrenov, P. A. Klimov, L. L. Lazutin, I. N. Myagkova, S. I. Svertilov

Department of Space Science and Engineering

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

7 Scopus citations

Abstract

We studied experimental data on ultra-violet (UV) nightglow in the wavelength range 300400 nm, and energetic electron fluxes measured by low-altitude polar satellite Universitetskii-Tatiana. From statistical analysis we have found three latitudinal regions of enhanced UV emission at low, middle and high latitudes. Modeling the electron precipitations to the atmosphere gave numerical estimation of the generated UV radiation. We found that the stable and quasi-stable fluxes of electrons precipitating at middle and low latitudes are too weak to explain the observed intensities of UV radiation. The high-latitude UV nightglow with intensity of several kiloRayleighs results from particle precipitation in the regions of aurora and outer radiation belt. The low-latitude UV enhancements of several hundreds Rayleighs can be related to the emission of mesospheric atomic oxygen whose concentration increases substantially at latitudes from 20° to 40°. A mechanism of the mid-latitude UV enhancements is still unknown and requires further investigations.

Original language	English
Pages (from-to)	733-740
Number of pages	8
Journal	Planetary and Space Science
Volume	59
Issue number	8
DOIs	https://doi.org/10.1016/j.pss.2011.02.010
State	Published - Jun 2011

Keywords

Ionosphere
Mesosphere
Particle precipitation
Radiation belts

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10.1016/j.pss.2011.02.010

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@article{9578860de14f4fa0bb38efd1a5af9a93,

title = "Latitudinal profile of UV nightglow and electron precipitations",

abstract = "We studied experimental data on ultra-violet (UV) nightglow in the wavelength range 300400 nm, and energetic electron fluxes measured by low-altitude polar satellite Universitetskii-Tatiana. From statistical analysis we have found three latitudinal regions of enhanced UV emission at low, middle and high latitudes. Modeling the electron precipitations to the atmosphere gave numerical estimation of the generated UV radiation. We found that the stable and quasi-stable fluxes of electrons precipitating at middle and low latitudes are too weak to explain the observed intensities of UV radiation. The high-latitude UV nightglow with intensity of several kiloRayleighs results from particle precipitation in the regions of aurora and outer radiation belt. The low-latitude UV enhancements of several hundreds Rayleighs can be related to the emission of mesospheric atomic oxygen whose concentration increases substantially at latitudes from 20° to 40°. A mechanism of the mid-latitude UV enhancements is still unknown and requires further investigations.",

keywords = "Ionosphere, Mesosphere, Particle precipitation, Radiation belts",

author = "Dmitriev, {A. V.} and Yeh, {H. C.} and Panasyuk, {M. I.} and Galkin, {V. I.} and Garipov, {G. K.} and Khrenov, {B. A.} and Klimov, {P. A.} and Lazutin, {L. L.} and Myagkova, {I. N.} and Svertilov, {S. I.}",

note = "Funding Information: The authors thank a team of Space Physics Interactive Data Resource for providing DMSP spectra of low-energy electrons. This work was supported by Russian–Taiwan cooperation grant NSC96-2923-M-008-001MY3/07-02-92004 HHC_a and by Ministry of Education under the Aim for Top University program at National Central University of Taiwan # 985603-20 . The authors would like to thank Jan B. Nee and Uma Das for fruitful discussions and useful comments.",

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doi = "10.1016/j.pss.2011.02.010",

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volume = "59",

pages = "733--740",

journal = "Planetary and Space Science",

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TY - JOUR

T1 - Latitudinal profile of UV nightglow and electron precipitations

AU - Dmitriev, A. V.

AU - Yeh, H. C.

AU - Panasyuk, M. I.

AU - Galkin, V. I.

AU - Garipov, G. K.

AU - Khrenov, B. A.

AU - Klimov, P. A.

AU - Lazutin, L. L.

AU - Myagkova, I. N.

AU - Svertilov, S. I.

N1 - Funding Information: The authors thank a team of Space Physics Interactive Data Resource for providing DMSP spectra of low-energy electrons. This work was supported by Russian–Taiwan cooperation grant NSC96-2923-M-008-001MY3/07-02-92004 HHC_a and by Ministry of Education under the Aim for Top University program at National Central University of Taiwan # 985603-20 . The authors would like to thank Jan B. Nee and Uma Das for fruitful discussions and useful comments.

PY - 2011/6

Y1 - 2011/6

N2 - We studied experimental data on ultra-violet (UV) nightglow in the wavelength range 300400 nm, and energetic electron fluxes measured by low-altitude polar satellite Universitetskii-Tatiana. From statistical analysis we have found three latitudinal regions of enhanced UV emission at low, middle and high latitudes. Modeling the electron precipitations to the atmosphere gave numerical estimation of the generated UV radiation. We found that the stable and quasi-stable fluxes of electrons precipitating at middle and low latitudes are too weak to explain the observed intensities of UV radiation. The high-latitude UV nightglow with intensity of several kiloRayleighs results from particle precipitation in the regions of aurora and outer radiation belt. The low-latitude UV enhancements of several hundreds Rayleighs can be related to the emission of mesospheric atomic oxygen whose concentration increases substantially at latitudes from 20° to 40°. A mechanism of the mid-latitude UV enhancements is still unknown and requires further investigations.

AB - We studied experimental data on ultra-violet (UV) nightglow in the wavelength range 300400 nm, and energetic electron fluxes measured by low-altitude polar satellite Universitetskii-Tatiana. From statistical analysis we have found three latitudinal regions of enhanced UV emission at low, middle and high latitudes. Modeling the electron precipitations to the atmosphere gave numerical estimation of the generated UV radiation. We found that the stable and quasi-stable fluxes of electrons precipitating at middle and low latitudes are too weak to explain the observed intensities of UV radiation. The high-latitude UV nightglow with intensity of several kiloRayleighs results from particle precipitation in the regions of aurora and outer radiation belt. The low-latitude UV enhancements of several hundreds Rayleighs can be related to the emission of mesospheric atomic oxygen whose concentration increases substantially at latitudes from 20° to 40°. A mechanism of the mid-latitude UV enhancements is still unknown and requires further investigations.

KW - Ionosphere

KW - Mesosphere

KW - Particle precipitation

KW - Radiation belts

UR - http://www.scopus.com/inward/record.url?scp=79955479551&partnerID=8YFLogxK

U2 - 10.1016/j.pss.2011.02.010

DO - 10.1016/j.pss.2011.02.010

M3 - 期刊論文

AN - SCOPUS:79955479551

SN - 0032-0633

VL - 59

SP - 733

EP - 740

JO - Planetary and Space Science

JF - Planetary and Space Science

IS - 8

ER -

Latitudinal profile of UV nightglow and electron precipitations

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Keywords

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