Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms
Energetic electron precipitation leads to increased nitric oxide (NO) production in the mesosphere and lower thermosphere. NO distributions in the winter time, high‐latitude Southern hemisphere atmosphere during geomagnetic storms are investigated. NO partial columns in the upper mesosphere at altit...
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American Geophysical Union
2020
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ftnerc:oai:nora.nerc.ac.uk:525767 2023-05-15T13:41:44+02:00 Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms Newnham, D.A. Rodger, C.J. Marsh, D.R. Hervig, M.E. Clilverd, M.A. 2020-07-06 text http://nora.nerc.ac.uk/id/eprint/525767/ https://nora.nerc.ac.uk/id/eprint/525767/1/2020JA027846.pdf https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JA027846 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/525767/1/2020JA027846.pdf Newnham, D.A. orcid:0000-0001-8422-1289 Rodger, C.J.; Marsh, D.R.; Hervig, M.E.; Clilverd, M.A. orcid:0000-0002-7388-1529 . 2020 Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms. Journal of Geophysical Research: Space Physics, 125 (7), e2020JA027846. 17, pp. https://doi.org/10.1029/2020JA027846 <https://doi.org/10.1029/2020JA027846> Publication - Article PeerReviewed 2020 ftnerc https://doi.org/10.1029/2020JA027846 2023-02-04T19:49:35Z Energetic electron precipitation leads to increased nitric oxide (NO) production in the mesosphere and lower thermosphere. NO distributions in the winter time, high‐latitude Southern hemisphere atmosphere during geomagnetic storms are investigated. NO partial columns in the upper mesosphere at altitudes 70–90 km and in the lower thermosphere at 90–110 km have been derived from observations made by the Solar Occultation For Ice Experiment (SOFIE) onboard the Aeronomy of Ice in the Mesosphere (AIM) satellite. The SOFIE NO measurements during 17 geomagnetic storms in 2008–2014 have been binned into selected geomagnetic latitude and geographic latitude/longitude ranges. The regions above Antarctica showing the largest instantaneous NO increases coincide with high fluxes of 30–300 keV precipitating electrons from measurements by the second generation Space Environment Monitor (SEM‐2) Medium Energy Proton and Electron Detector instrument (MEPED) on the Polar orbiting Operational Environmental Satellites (POES). Significant NO increases over the Antarctic Peninsula are likely due to precipitation of >30 keV electrons from the radiation belt slot region. NO transport is estimated using Horizontal Wind Model (HWM14) calculations. In the upper mesosphere strong eastward winds (daily mean zonal wind speed ~20–30 ms‐1 at 80 km) during winter transport NO‐enriched air away from source regions 1–3 days following the storms. Mesospheric winds also introduce NO poor air into the source regions, quenching initial NO increases. Higher up, in the lower thermosphere, weaker eastward winds (~5–10 ms‐1 at 100 km) are less effective at redistributing NO zonally. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Journal of Geophysical Research: Space Physics 125 7 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Energetic electron precipitation leads to increased nitric oxide (NO) production in the mesosphere and lower thermosphere. NO distributions in the winter time, high‐latitude Southern hemisphere atmosphere during geomagnetic storms are investigated. NO partial columns in the upper mesosphere at altitudes 70–90 km and in the lower thermosphere at 90–110 km have been derived from observations made by the Solar Occultation For Ice Experiment (SOFIE) onboard the Aeronomy of Ice in the Mesosphere (AIM) satellite. The SOFIE NO measurements during 17 geomagnetic storms in 2008–2014 have been binned into selected geomagnetic latitude and geographic latitude/longitude ranges. The regions above Antarctica showing the largest instantaneous NO increases coincide with high fluxes of 30–300 keV precipitating electrons from measurements by the second generation Space Environment Monitor (SEM‐2) Medium Energy Proton and Electron Detector instrument (MEPED) on the Polar orbiting Operational Environmental Satellites (POES). Significant NO increases over the Antarctic Peninsula are likely due to precipitation of >30 keV electrons from the radiation belt slot region. NO transport is estimated using Horizontal Wind Model (HWM14) calculations. In the upper mesosphere strong eastward winds (daily mean zonal wind speed ~20–30 ms‐1 at 80 km) during winter transport NO‐enriched air away from source regions 1–3 days following the storms. Mesospheric winds also introduce NO poor air into the source regions, quenching initial NO increases. Higher up, in the lower thermosphere, weaker eastward winds (~5–10 ms‐1 at 100 km) are less effective at redistributing NO zonally. |
format |
Article in Journal/Newspaper |
author |
Newnham, D.A. Rodger, C.J. Marsh, D.R. Hervig, M.E. Clilverd, M.A. |
spellingShingle |
Newnham, D.A. Rodger, C.J. Marsh, D.R. Hervig, M.E. Clilverd, M.A. Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms |
author_facet |
Newnham, D.A. Rodger, C.J. Marsh, D.R. Hervig, M.E. Clilverd, M.A. |
author_sort |
Newnham, D.A. |
title |
Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms |
title_short |
Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms |
title_full |
Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms |
title_fullStr |
Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms |
title_full_unstemmed |
Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms |
title_sort |
spatial distributions of nitric oxide in the antarctic winter‐time middle atmosphere during geomagnetic storms |
publisher |
American Geophysical Union |
publishDate |
2020 |
url |
http://nora.nerc.ac.uk/id/eprint/525767/ https://nora.nerc.ac.uk/id/eprint/525767/1/2020JA027846.pdf https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JA027846 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_relation |
https://nora.nerc.ac.uk/id/eprint/525767/1/2020JA027846.pdf Newnham, D.A. orcid:0000-0001-8422-1289 Rodger, C.J.; Marsh, D.R.; Hervig, M.E.; Clilverd, M.A. orcid:0000-0002-7388-1529 . 2020 Spatial distributions of nitric oxide in the Antarctic winter‐time middle atmosphere during geomagnetic storms. Journal of Geophysical Research: Space Physics, 125 (7), e2020JA027846. 17, pp. https://doi.org/10.1029/2020JA027846 <https://doi.org/10.1029/2020JA027846> |
op_doi |
https://doi.org/10.1029/2020JA027846 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
125 |
container_issue |
7 |
_version_ |
1766156181063073792 |