Neftel, Albrecht; Oeschger, Hans; Suess, Hans E. (1981). Secular non-random variations of cosmogenic carbon-14 in the terrestrial atmosphere. Earth and planetary science letters, 56, pp. 127-147. Elsevier 10.1016/0012-821X(81)90121-7
Full text not available from this repository.The time dependence of the14C content of bristlecone pine wood samples dated by their tree rings and grown during the last 8000 years was examined. The14C values as measured by the La Jolla Radiocarbon Laboratory were used for the investigation.
Two different smoothing techniques were used for constructing values for equal time intervals. In this manner the introduction of regularities, that could have resulted from applied mathematical techniques, could be excluded.
There is good evidence for non-random features in the power spectrum, in particular for a 200-year periodicity.
The regularities in the power spectrum are further indications supporting the assumption that the14C variations reflect a property of the sun.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Physics Institute > Climate and Environmental Physics |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0012-821X |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
BORIS Import 2 |
Date Deposited: |
15 Sep 2021 16:10 |
Last Modified: |
15 Sep 2021 16:10 |
Publisher DOI: |
10.1016/0012-821X(81)90121-7 |
URI: |
https://boris.unibe.ch/id/eprint/158538 |
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