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Solar Flare Particle Effects and Seasonal Radiocarbon Variations in Tree Rings of the Northern and Southern Hemispheres

Published online by Cambridge University Press:  18 July 2016

Paolo Bartolomei ,
Stefano Cecchini ,
Stefano Cini ,
Menotti Galli ,
Roberto Gaimpieri ,
Cinzia Mongardi ,
Teresa Nanni  and
Agostino Salomoni
Paolo Bartolomei
Affiliation:
ENEA, Ente per le nuove Tecnologie, L'Energia e L'Ambiente, INN-FIS-DIAF, Via dei Colli 16, I-40136 Bologna, Italy
Stefano Cecchini
Affiliation:
Istituto di Technologie e Studio delle Radiazioni Extraterrestri del Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, I-40129 Bologna, Italy
Stefano Cini
Affiliation:
ENEA, Ente per le nuove Tecnologie, L'Energia e L'Ambiente, INN-FIS-DIAF, Via dei Colli 16, I-40136 Bologna, Italy
Menotti Galli
Affiliation:
Dipartimento di Fisica, Università degli Studi di Bologna, Via Irnerio 46, I-40126 Bologna, Italy
Roberto Gaimpieri
Affiliation:
ENEA, Ente per le nuove Tecnologie, L'Energia e L'Ambiente, INN-FIS-DIAF, Via dei Colli 16, I-40136 Bologna, Italy
Cinzia Mongardi
Affiliation:
Lavoro e Ambiente s.r.l., Via Musolesi 1, I-40138 Bologna, Italy
Teresa Nanni
Affiliation:
Istituto per lo Studio dei Fenomeni Fisici e Chimici della Bassa ed Alta Atmosfera del Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, I-40129 Bologna, Italy
Agostino Salomoni
Affiliation:
ENEA, Ente per le nuove Tecnologie, L'Energia e L'Ambiente, INN-FIS-DIAF, Via dei Colli 16, I-40136 Bologna, Italy
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Abstract

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Measurements of ∆14C and δ13C, separately in early wood and late wood of two Mediterranean pine species, with a nearly year-long growth season, were made to better define possible solar flare particle effects. The measurements were made for suitable periods around the years of big flares (e.g., 1942, 1946, 1989) in Pinus pinea of the Adriatic area and Pinus halepensis from South Australia. We found that the 14C concentration is consistently greater in early wood than in late wood of the same growth ring and considerably higher in the Australian samples than in the European samples. The data so far reveal no evidence of solar-flare effect.

Type
IV. 14C as a Tracer of the Dynamic Carbon Cycle in the Current Environment
Information
Radiocarbon , Volume 37 , Issue 2 , 1995 , pp. 593 - 598
Copyright
Copyright © the Department of Geosciences, The University of Arizona 

References

Attolini, M. R., Calvani, F., Galli, M., Nanni, T., Ruggiero, L., Schaer, E. and Zuanni, F. 1990 The relationship between climatic variable and wood structure in Pinus Halepensis Mill. Theoretical Applications in Climatology 41: 121–127.CrossRefGoogle Scholar
Barbetti, M., Bird, T., Dolezal, G., Taylor, G., Francey, R., Cook, E. and Peterson, M. 1992 Radiocarbon variations from Tasmanian conifers: First results from late Pleistocene and Holocene logs. In Long, A. and Kra, R. S., eds., Proceedings of the 14th International 14C Conference. Radiocarbon 34(3): 806–817.Google Scholar
Burchuladze, A. A., Pagava, S. V., Povinec, P., Toyonidze, G. I. and Usacev, S. 1980 Radiocarbon variation with the 11-year solar cycle during the last century. Nature 288: 320–322.Google Scholar
Castagnoli, G. and Lal, D. 1980 Solar modulation effects in terrestrial production of 14C. In Stuiver, M. and Kra, R. S., eds., Proceedings of the 10th International 14C Conference. Radiocarbon 22(2): 133–158.Google Scholar
Dai, K.-M., Qian, Y. and Fan, C. Y. 1992 Bomb-produced 14C in tree rings. In Long, A. and Kra, R. S., eds., Proceedings of the 14th International 14C Conference. Radiocarbon 34(3): 753–756.Google Scholar
Damon, P. E., Cheng, S. and Linick, T. W. 1989 Fine and hyperfine structure in the spectrum of secular variations of atmospheric 14C. In Long, A., Kra, R. S. and Srdoč, D., eds., Proceedings of the 13th International 14C Conference. Radiocarbon 31(3): 704–718.Google Scholar
Gupta, S. A. and Polach, H. A. 1985 Radiocarbon Dating Practices at ANU. Canberra, Australian National University.Google Scholar
Kostantinov, A. N., Levchenko, V. A., Kocharov, G. E., Mikheeva, I. B., Cecchini, S., Galli, M., Nanni, T., Povinec, P., Ruggiero, L. and Salomoni, A. 1992 Theoretical and experimental aspects of solar flares manifestation in radiocarbon abundance in tree rings. Radiocarbon 34(2): 247–253.Google Scholar
Lerman, J. C., Mook, W. G. and Vogel, J. C. 1970 14C in tree rings from different localities. In Olsson, I. U., ed., Radiocarbon Variations and Absolute Chronology , Proceedings of the 12th Nobel Symposium. New York, John Wiley & Sons: 257–299.Google Scholar
Levin, I., Schuchard, J., Kromer, B., and Münnich, K. O. 1989 The continental European Suess effect. In Long, A., Kra, R. S. and Srdoč, D., eds., Proceedings of the 13th International 14C Conference. Radiocarbon 31(3): 431–440.CrossRefGoogle Scholar
Lingenfelter, R. E. and Ramaty, R. 1970 Astrophysical and geophysical variations 14C production. In Olsson, I. U., ed., Radiocarbon Variations and Absolute Chronology , Proceedings of the 12th Nobel Sypmposium. New York, John Wiley & Sons: 513–535.Google Scholar
Mayaud, P. A. 1973 A Hundred Year Series of Geomagnetic Data 1868–1967: Indices aa, Sudden Storm Commencements. IAGA Bulletin 33. Paris, IUGG Publications Office: 121 p.Google Scholar
Olsson, I. U. and Possnert, G. 1992 14C activity in different sections and chemical fraction of oak tree rings, ad 1938–1981. In Long, A. and Kra, R. S., eds., Proceedings of the 14th International 14C Conference. Radiocarbon 34(3): 757–767.CrossRefGoogle Scholar
Pomerantz, M. A. and Duggal, S. P. 1974 Sun and cosmic rays. Review of Geophysics and Space Physics 12: 343–360.CrossRefGoogle Scholar
Shea, M. A. 1990 Solar cosmic rays 1960–1989. In Proceedings of the 21st International Cosmic Ray Conference, Adelaide, Conference Papers 12: 196–201.Google Scholar
Stuiver, M. and Quay, P. D. 1981 Atmospheric 14C changes from fossil fuel CO2 release and cosmic ray flux variability. Earth and Planetary Science Letters 53: 349–362.Google Scholar
Tans, P. P., de Jong, A. F. M. and Mook, W. G. 1979 Natural atmospheric 14C variation and the Suess effect. Nature 280: 826–828.Google Scholar
Vogel, J. C., Fuls, A. and Visser, E. 1993 Pretoria calibration curve for short-lived samples, 1930–3350 bc. In Stuiver, M., Long, A. and Kra, R. S., eds., Calibration 1993. Radiocarbon 35(1): 73–85.Google Scholar