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The Revised Sunspot Record in Comparison to Cosmogenic Radionuclide-Based Solar Activity Reconstructions

Muscheler, Raimund LU ; Adolphi, Florian LU ; Herbst, Konstantin LU and Nilsson, Andreas LU (2016) In Solar Physics 291(9-10). p.3025-3043
Abstract

Recent revisions in the sunspot records illustrate the challenges related to obtaining a 400-year-long observational record of past solar-activity changes. Cosmogenic radionuclides offer the possibility of obtaining an alternative and completely independent record of solar variability. Here, we illustrate that these records offer great potential for quantitative solar-activity reconstructions far back into the past, and we provide updated radionuclide-based solar-activity reconstructions for the past 2000 years. However, cosmogenic-radionuclide records are also influenced by processes independent of solar activity, leading to the need for critical assessment and correction for the non-solar influences. Independent of these... (More)

Recent revisions in the sunspot records illustrate the challenges related to obtaining a 400-year-long observational record of past solar-activity changes. Cosmogenic radionuclides offer the possibility of obtaining an alternative and completely independent record of solar variability. Here, we illustrate that these records offer great potential for quantitative solar-activity reconstructions far back into the past, and we provide updated radionuclide-based solar-activity reconstructions for the past 2000 years. However, cosmogenic-radionuclide records are also influenced by processes independent of solar activity, leading to the need for critical assessment and correction for the non-solar influences. Independent of these uncertainties, we show a very good agreement between the revised sunspot records and the 10Be records from Antarctica and, in particular, the 14C-based solar-activity reconstructions. This comparison offers the potential of identifying remaining non-solar processes in the radionuclide-based solar-activity reconstructions, but it also helps identifying remaining biases in the recently revised sunspot records.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Be, C, Cosmogenic radionuclides, Solar modulation, Solar-activity reconstruction, Sunspots
in
Solar Physics
volume
291
issue
9-10
pages
3025 - 3043
publisher
Springer
external identifiers
  • scopus:84988703088
  • wos:000388842600028
ISSN
0038-0938
DOI
10.1007/s11207-016-0969-z
language
English
LU publication?
yes
id
d3041f73-9065-419b-b08c-6090a8f41a1b
date added to LUP
2016-10-31 13:18:17
date last changed
2017-11-19 04:34:23
@article{d3041f73-9065-419b-b08c-6090a8f41a1b,
  abstract     = {<p>Recent revisions in the sunspot records illustrate the challenges related to obtaining a 400-year-long observational record of past solar-activity changes. Cosmogenic radionuclides offer the possibility of obtaining an alternative and completely independent record of solar variability. Here, we illustrate that these records offer great potential for quantitative solar-activity reconstructions far back into the past, and we provide updated radionuclide-based solar-activity reconstructions for the past 2000 years. However, cosmogenic-radionuclide records are also influenced by processes independent of solar activity, leading to the need for critical assessment and correction for the non-solar influences. Independent of these uncertainties, we show a very good agreement between the revised sunspot records and the <sup>10</sup>Be records from Antarctica and, in particular, the <sup>14</sup>C-based solar-activity reconstructions. This comparison offers the potential of identifying remaining non-solar processes in the radionuclide-based solar-activity reconstructions, but it also helps identifying remaining biases in the recently revised sunspot records.</p>},
  author       = {Muscheler, Raimund and Adolphi, Florian and Herbst, Konstantin and Nilsson, Andreas},
  issn         = {0038-0938},
  keyword      = {Be,C,Cosmogenic radionuclides,Solar modulation,Solar-activity reconstruction,Sunspots},
  language     = {eng},
  number       = {9-10},
  pages        = {3025--3043},
  publisher    = {Springer},
  series       = {Solar Physics},
  title        = {The Revised Sunspot Record in Comparison to Cosmogenic Radionuclide-Based Solar Activity Reconstructions},
  url          = {http://dx.doi.org/10.1007/s11207-016-0969-z},
  volume       = {291},
  year         = {2016},
}