Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090896 |
Solar activity of the past 100 years inferred from 10Be in ice cores – implications for long‐term solar activity reconstructions | |
Minjie Zheng; Florian Adolphi; Jesper Sjolte; Ala Aldahan; Gö; ran Possnert; Mousong Wu; Peng Chen; Raimund Muscheler | |
2021-01-12 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Differences between 10Be records from Greenland and Antarctica over the last 100 years have led to different conclusions about past changes in solar activity. The reasons for this disagreement remain unresolved. We analyze a seasonally resolved 10Be record from a firn core (NEEM ice core project) in Northwestern Greenland for 1887‐2002. By comparing the NEEM data to 10Be data from the NGRIP and Dye3 ice cores, we find that the Dye3 data after 1958 are significantly lower. These low values lead to a normalization problem in solar reconstructions when connecting 10Be variations to modern observations. Excluding these data strongly reduces the differences between solar reconstructions over the last 2000 years based on Greenland and Antarctic 10Be data. Furthermore, 10Be records from polar regions and group sunspot numbers do not support a substantial increase in solar activity for the 1937‐1950 period as proposed by previous extensions of the neutron monitor data. This article is protected by copyright. All rights reserved. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/311362 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Minjie Zheng,Florian Adolphi,Jesper Sjolte,等. Solar activity of the past 100 years inferred from 10Be in ice cores – implications for long‐term solar activity reconstructions[J]. Geophysical Research Letters,2021. |
APA | Minjie Zheng.,Florian Adolphi.,Jesper Sjolte.,Ala Aldahan.,Gö.,...&Raimund Muscheler.(2021).Solar activity of the past 100 years inferred from 10Be in ice cores – implications for long‐term solar activity reconstructions.Geophysical Research Letters. |
MLA | Minjie Zheng,et al."Solar activity of the past 100 years inferred from 10Be in ice cores – implications for long‐term solar activity reconstructions".Geophysical Research Letters (2021). |
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