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Substorm-induced energetic electron precipitation: impact on atmospheric chemistry

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Substorm-induced energetic electron precipitation: impact on atmospheric chemistry. / Seppälä, A.; Clilverd, Mark A.; Beharrell, Mathew James et al.
In: Geophysical Research Letters, Vol. 42, No. 19, 16.10.2015, p. 8172-8176.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Seppälä, A, Clilverd, MA, Beharrell, MJ, Rodger, CJ, Verronen, PT, Andersson, ME & Newnham, DA 2015, 'Substorm-induced energetic electron precipitation: impact on atmospheric chemistry', Geophysical Research Letters, vol. 42, no. 19, pp. 8172-8176. https://doi.org/10.1002/2015GL065523

APA

Seppälä, A., Clilverd, M. A., Beharrell, M. J., Rodger, C. J., Verronen, P. T., Andersson, M. E., & Newnham, D. A. (2015). Substorm-induced energetic electron precipitation: impact on atmospheric chemistry. Geophysical Research Letters, 42(19), 8172-8176. https://doi.org/10.1002/2015GL065523

Vancouver

Seppälä A, Clilverd MA, Beharrell MJ, Rodger CJ, Verronen PT, Andersson ME et al. Substorm-induced energetic electron precipitation: impact on atmospheric chemistry. Geophysical Research Letters. 2015 Oct 16;42(19):8172-8176. Epub 2015 Oct 3. doi: 10.1002/2015GL065523

Author

Seppälä, A. ; Clilverd, Mark A. ; Beharrell, Mathew James et al. / Substorm-induced energetic electron precipitation : impact on atmospheric chemistry. In: Geophysical Research Letters. 2015 ; Vol. 42, No. 19. pp. 8172-8176.

Bibtex

@article{00eb51952d4540cc9df31581c7ee1627,
title = "Substorm-induced energetic electron precipitation: impact on atmospheric chemistry",
abstract = "Magnetospheric substorms drive energetic electron precipitation into the Earth's atmosphere. We use the output from a substorm model to describe electron precipitation forcing of the atmosphere during an active substorm period in April–May 2007. We provide the first estimate of substorm impact on the neutral composition of the polar middle atmosphere. Model simulations show that the enhanced ionization from a series of substorms leads to an estimated ozone loss of 5–50% in the mesospheric column depending on season. This is similar in scale to small to medium solar proton events (SPEs). This effect on polar ozone balance is potentially more important on long time scales (months to years) than the impulsive but sporadic (few SPE/year versus three to four substorms/day) effect of SPEs. Our results suggest that substorms should be considered an important source of energetic particle precipitation into the atmosphere and included in high-top chemistry-climate models.",
author = "A. Sepp{\"a}l{\"a} and Clilverd, {Mark A.} and Beharrell, {Mathew James} and Rodger, {Craig J.} and Verronen, {P. T.} and Andersson, {M. E.} and Newnham, {D. A.}",
year = "2015",
month = oct,
day = "16",
doi = "10.1002/2015GL065523",
language = "English",
volume = "42",
pages = "8172--8176",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",
number = "19",

}

RIS

TY - JOUR

T1 - Substorm-induced energetic electron precipitation

T2 - impact on atmospheric chemistry

AU - Seppälä, A.

AU - Clilverd, Mark A.

AU - Beharrell, Mathew James

AU - Rodger, Craig J.

AU - Verronen, P. T.

AU - Andersson, M. E.

AU - Newnham, D. A.

PY - 2015/10/16

Y1 - 2015/10/16

N2 - Magnetospheric substorms drive energetic electron precipitation into the Earth's atmosphere. We use the output from a substorm model to describe electron precipitation forcing of the atmosphere during an active substorm period in April–May 2007. We provide the first estimate of substorm impact on the neutral composition of the polar middle atmosphere. Model simulations show that the enhanced ionization from a series of substorms leads to an estimated ozone loss of 5–50% in the mesospheric column depending on season. This is similar in scale to small to medium solar proton events (SPEs). This effect on polar ozone balance is potentially more important on long time scales (months to years) than the impulsive but sporadic (few SPE/year versus three to four substorms/day) effect of SPEs. Our results suggest that substorms should be considered an important source of energetic particle precipitation into the atmosphere and included in high-top chemistry-climate models.

AB - Magnetospheric substorms drive energetic electron precipitation into the Earth's atmosphere. We use the output from a substorm model to describe electron precipitation forcing of the atmosphere during an active substorm period in April–May 2007. We provide the first estimate of substorm impact on the neutral composition of the polar middle atmosphere. Model simulations show that the enhanced ionization from a series of substorms leads to an estimated ozone loss of 5–50% in the mesospheric column depending on season. This is similar in scale to small to medium solar proton events (SPEs). This effect on polar ozone balance is potentially more important on long time scales (months to years) than the impulsive but sporadic (few SPE/year versus three to four substorms/day) effect of SPEs. Our results suggest that substorms should be considered an important source of energetic particle precipitation into the atmosphere and included in high-top chemistry-climate models.

U2 - 10.1002/2015GL065523

DO - 10.1002/2015GL065523

M3 - Journal article

VL - 42

SP - 8172

EP - 8176

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 19

ER -