Articles | Volume 19, issue 11
Research article
22 Nov 2023
Research article |  | 22 Nov 2023

Evaluating the 11-year solar cycle and short-term 10Be deposition events with novel excess water samples from the East Greenland Ice-core Project (EGRIP)

Chiara I. Paleari, Florian Mekhaldi, Tobias Erhardt, Minjie Zheng, Marcus Christl, Florian Adolphi, Maria Hörhold, and Raimund Muscheler

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Cited articles

Aldahan, A., Possnert, G., Johnsen, S. J., Clausen, H. B., Isaksson, E., Karlen, W., and Hansson, M.: Sixty year 10Be record from Greenland and Antarctica, Proc. Indian Acad. Sci. Earth Planet. Sci., 107, 139–147,, 1998. 
Baroni, M., Bard, E., Petit, J. R., Magand, O., and Bourlès, D.: Volcanic and solar activity, and atmospheric circulation influences on cosmogenic 10Be fallout at Vostok and Concordia (Antarctica) over the last 60 years, Geochim. Cosmochim. Ac., 75, 7132–7145,, 2011. 
Baroni, M., Bard, E., Petit, J. R., and Viseur, S.: Persistent Draining of the Stratospheric 10Be Reservoir After the Samalas Volcanic Eruption (1257 CE), J. Geophys. Res.-Atmos., 124, 7082–7097,, 2019. 
Beer, J., Blinov, A., Bonani, G., Finkel, R. C., Hofmann, H. J., Lehmann, B., Oeschger, H., Sigg, A., Schwander, J., Staffelbach, T., Stauffer, B., Suter, M., and Wötfli, W.: Use of 10Be in polar ice to trace the 11-year cycle of solar activity, Nature, 347, 164–166,, 1990. 
Berggren, A. M., Beer, J., Possnert, G., Aldahan, A., Kubik, P., Christl, M., Johnsen, S. J., Abreu, J., and Vinther, B. M.: A 600-year annual 10Be record from the NGRIP ice core, Greenland, Geophys. Res. Lett., 36, 1–5,, 2009. 
Short summary
In this study, we test the use of excess meltwater from continuous flow analysis from a firn core from Greenland for the measurement of 10Be for solar activity reconstructions. We show that the quality of results is similar to the measurements on clean firn, which opens the possibility to obtain continuous 10Be records without requiring large amounts of clean ice. Furthermore, we investigate the possibility of identifying solar storm signals in 10Be records from Greenland and Antarctica.