The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events
The manifestation of extreme solar proton events (SPEs) in Beryllium-10 (10Be) ice core data contains valuable information about the strength and incidence of SPEs or local characteristics of the atmosphere. To extract this information, the signals of enhanced production of cosmogenic 10Be due to th...
Published in: | Journal of Geophysical Research: Atmospheres |
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Language: | English |
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Wiley-Blackwell
2024
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Online Access: | https://lup.lub.lu.se/record/8b64c1e1-aad2-4592-88ae-9a3b9c4efc59 https://doi.org/10.1029/2023JD040463 |
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ftulundlup:oai:lup.lub.lu.se:8b64c1e1-aad2-4592-88ae-9a3b9c4efc59 2024-09-15T17:48:39+00:00 The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events Schaar, K. Spiegl, T. Langematz, U. Sato, T. Mekhaldi, F. Kunze, M. Miyake, F. Yoden, S. 2024-06-16 https://lup.lub.lu.se/record/8b64c1e1-aad2-4592-88ae-9a3b9c4efc59 https://doi.org/10.1029/2023JD040463 eng eng Wiley-Blackwell https://lup.lub.lu.se/record/8b64c1e1-aad2-4592-88ae-9a3b9c4efc59 http://dx.doi.org/10.1029/2023JD040463 scopus:85195129467 Journal of Geophysical Research: Atmospheres; 129(11), no e2023JD040463 (2024) ISSN: 2169-897X Earth and Related Environmental Sciences atmospheric transport and deposition climate model study detectability of solar proton events galactic cosmic rays ice core data radionuclide beryllium-10 contributiontojournal/article info:eu-repo/semantics/article text 2024 ftulundlup https://doi.org/10.1029/2023JD040463 2024-08-28T00:10:42Z The manifestation of extreme solar proton events (SPEs) in Beryllium-10 (10Be) ice core data contains valuable information about the strength and incidence of SPEs or local characteristics of the atmosphere. To extract this information, the signals of enhanced production of cosmogenic 10Be due to the SPEs have to be detected, hence distinguished from the variability of the background production by galactic cosmic rays (GCRs). Here, we study the transport and deposition of 10Be from GCRs, using the ECHAM/MESSy Atmospheric Chemistry climate model, and discuss the detectability of extreme SPEs (similar to the CE 774/775 SPE) in 10Be ice core data depending on the ice core location, seasonal appearance of the SPE, atmospheric aerosol size distribution and phase of the 11-year solar cycle. We find that sedimentation can be a major deposition mechanism of GCR generated 10Be, especially at high latitudes, depending on the aerosols to which 10Be attaches after production. The comparison of our results to four ice core records of 10Be from Greenland and Antarctica shows good agreement for both 10Be from GCRs and solar energetic particles (SEP). From our results we deduce that the location of detection and the season of occurrence of the SPE have a considerable effect on its detectability, as well as the aerosol size distribution the produced cosmogenic nuclides meet in the atmosphere. Furthermore, we find that SPEs occurring in the phase of highest activity during the 11-year solar cycle are more detectable than SPEs that arise in the phase of lowest activity. Article in Journal/Newspaper Antarc* Antarctica Greenland ice core Lund University Publications (LUP) Journal of Geophysical Research: Atmospheres 129 11 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Earth and Related Environmental Sciences atmospheric transport and deposition climate model study detectability of solar proton events galactic cosmic rays ice core data radionuclide beryllium-10 |
spellingShingle |
Earth and Related Environmental Sciences atmospheric transport and deposition climate model study detectability of solar proton events galactic cosmic rays ice core data radionuclide beryllium-10 Schaar, K. Spiegl, T. Langematz, U. Sato, T. Mekhaldi, F. Kunze, M. Miyake, F. Yoden, S. The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events |
topic_facet |
Earth and Related Environmental Sciences atmospheric transport and deposition climate model study detectability of solar proton events galactic cosmic rays ice core data radionuclide beryllium-10 |
description |
The manifestation of extreme solar proton events (SPEs) in Beryllium-10 (10Be) ice core data contains valuable information about the strength and incidence of SPEs or local characteristics of the atmosphere. To extract this information, the signals of enhanced production of cosmogenic 10Be due to the SPEs have to be detected, hence distinguished from the variability of the background production by galactic cosmic rays (GCRs). Here, we study the transport and deposition of 10Be from GCRs, using the ECHAM/MESSy Atmospheric Chemistry climate model, and discuss the detectability of extreme SPEs (similar to the CE 774/775 SPE) in 10Be ice core data depending on the ice core location, seasonal appearance of the SPE, atmospheric aerosol size distribution and phase of the 11-year solar cycle. We find that sedimentation can be a major deposition mechanism of GCR generated 10Be, especially at high latitudes, depending on the aerosols to which 10Be attaches after production. The comparison of our results to four ice core records of 10Be from Greenland and Antarctica shows good agreement for both 10Be from GCRs and solar energetic particles (SEP). From our results we deduce that the location of detection and the season of occurrence of the SPE have a considerable effect on its detectability, as well as the aerosol size distribution the produced cosmogenic nuclides meet in the atmosphere. Furthermore, we find that SPEs occurring in the phase of highest activity during the 11-year solar cycle are more detectable than SPEs that arise in the phase of lowest activity. |
format |
Article in Journal/Newspaper |
author |
Schaar, K. Spiegl, T. Langematz, U. Sato, T. Mekhaldi, F. Kunze, M. Miyake, F. Yoden, S. |
author_facet |
Schaar, K. Spiegl, T. Langematz, U. Sato, T. Mekhaldi, F. Kunze, M. Miyake, F. Yoden, S. |
author_sort |
Schaar, K. |
title |
The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events |
title_short |
The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events |
title_full |
The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events |
title_fullStr |
The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events |
title_full_unstemmed |
The Role of Deposition of Cosmogenic 10Be for the Detectability of Solar Proton Events |
title_sort |
role of deposition of cosmogenic 10be for the detectability of solar proton events |
publisher |
Wiley-Blackwell |
publishDate |
2024 |
url |
https://lup.lub.lu.se/record/8b64c1e1-aad2-4592-88ae-9a3b9c4efc59 https://doi.org/10.1029/2023JD040463 |
genre |
Antarc* Antarctica Greenland ice core |
genre_facet |
Antarc* Antarctica Greenland ice core |
op_source |
Journal of Geophysical Research: Atmospheres; 129(11), no e2023JD040463 (2024) ISSN: 2169-897X |
op_relation |
https://lup.lub.lu.se/record/8b64c1e1-aad2-4592-88ae-9a3b9c4efc59 http://dx.doi.org/10.1029/2023JD040463 scopus:85195129467 |
op_doi |
https://doi.org/10.1029/2023JD040463 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
129 |
container_issue |
11 |
_version_ |
1810290123018862592 |