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Atmospheric and Deposition Responses of 10Be to Volcanic Eruptions Inferred From the Aerosol-Climate Model ECHAM6.3-HAM2.3-SALSA2.0 : 10Be

Zheng, Minjie LU ; Muscheler, Raimund LU orcid ; Laakso, Anton ; Adolphi, Florian LU ; Lu, Zhengyao LU orcid ; Wu, Mousong LU ; Chen, Peng LU ; Tao, Qin LU orcid and Lohmann, Ulrike (2026) In Geophysical Research Letters 53(4).
Abstract

10Be deposition in ice cores is widely used for solar reconstructions, but its interpretation is complicated by volcanic influences. Using the state-of-the-art aerosol-climate model ECHAM6.3-HAM2.3-SALSA2.0: 10Be, we assess the impacts of three major volcanic eruptions: Agung (1963), El Chichón (1982) and Pinatubo (1991). All eruptions enhance stratospheric 10Be sedimentation, increasing atmospheric 10Be below the injection altitude for several months, followed by stratospheric 10Be depletion that takes years to recover. Increases in tropospheric 10Be and deposition coincide with periods of strong stratosphere–troposphere exchange. Aerosol-induced sedimentation... (More)

10Be deposition in ice cores is widely used for solar reconstructions, but its interpretation is complicated by volcanic influences. Using the state-of-the-art aerosol-climate model ECHAM6.3-HAM2.3-SALSA2.0: 10Be, we assess the impacts of three major volcanic eruptions: Agung (1963), El Chichón (1982) and Pinatubo (1991). All eruptions enhance stratospheric 10Be sedimentation, increasing atmospheric 10Be below the injection altitude for several months, followed by stratospheric 10Be depletion that takes years to recover. Increases in tropospheric 10Be and deposition coincide with periods of strong stratosphere–troposphere exchange. Aerosol-induced sedimentation significantly enhances polar 10Be deposition subsequent to the Pinatubo and El Chichón eruptions but plays a limited role after the Agung eruption. Sensitivity experiments reveal that higher SO2 injections generally lead to nonlinear increases in global 10Be deposition. These results underscore the need to account for volcanic influences when interpreting and modeling polar 10Be records following major eruptions.

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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Be, cosmogenic radionuclides, ECHAM6.3-HAM2.3-SALSA2.0: Be, ice cores, transport and deposition, volcanic eruption
in
Geophysical Research Letters
volume
53
issue
4
article number
e2025GL117481
publisher
American Geophysical Union (AGU)
external identifiers
  • scopus:105030030093
ISSN
0094-8276
DOI
10.1029/2025GL117481
language
English
LU publication?
yes
id
7ff5cadd-1775-4c65-899c-5ba528382a38
date added to LUP
2026-04-17 13:23:33
date last changed
2026-04-17 14:41:51
@article{7ff5cadd-1775-4c65-899c-5ba528382a38,
  abstract     = {{<p><sup>10</sup>Be deposition in ice cores is widely used for solar reconstructions, but its interpretation is complicated by volcanic influences. Using the state-of-the-art aerosol-climate model ECHAM6.3-HAM2.3-SALSA2.0: <sup>10</sup>Be, we assess the impacts of three major volcanic eruptions: Agung (1963), El Chichón (1982) and Pinatubo (1991). All eruptions enhance stratospheric <sup>10</sup>Be sedimentation, increasing atmospheric <sup>10</sup>Be below the injection altitude for several months, followed by stratospheric <sup>10</sup>Be depletion that takes years to recover. Increases in tropospheric <sup>10</sup>Be and deposition coincide with periods of strong stratosphere–troposphere exchange. Aerosol-induced sedimentation significantly enhances polar <sup>10</sup>Be deposition subsequent to the Pinatubo and El Chichón eruptions but plays a limited role after the Agung eruption. Sensitivity experiments reveal that higher SO<sub>2</sub> injections generally lead to nonlinear increases in global <sup>10</sup>Be deposition. These results underscore the need to account for volcanic influences when interpreting and modeling polar <sup>10</sup>Be records following major eruptions.</p>}},
  author       = {{Zheng, Minjie and Muscheler, Raimund and Laakso, Anton and Adolphi, Florian and Lu, Zhengyao and Wu, Mousong and Chen, Peng and Tao, Qin and Lohmann, Ulrike}},
  issn         = {{0094-8276}},
  keywords     = {{Be; cosmogenic radionuclides; ECHAM6.3-HAM2.3-SALSA2.0: Be; ice cores; transport and deposition; volcanic eruption}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Geophysical Union (AGU)}},
  series       = {{Geophysical Research Letters}},
  title        = {{Atmospheric and Deposition Responses of <sup>10</sup>Be to Volcanic Eruptions Inferred From the Aerosol-Climate Model ECHAM6.3-HAM2.3-SALSA2.0 : <sup>10</sup>Be}},
  url          = {{http://dx.doi.org/10.1029/2025GL117481}},
  doi          = {{10.1029/2025GL117481}},
  volume       = {{53}},
  year         = {{2026}},
}