Mineral and Sea-Salt Aerosol Fluxes over the Last 340 kyr Reconstructed from the Total Concentration of Al and Na in the Dome Fuji Ice CoreReport as inadecuate




Mineral and Sea-Salt Aerosol Fluxes over the Last 340 kyr Reconstructed from the Total Concentration of Al and Na in the Dome Fuji Ice Core - Download this document for free, or read online. Document in PDF available to download.

A quantitative analysis of the total concentrations of Al and Na inthe Antarctic ice sheet during the past 340 kyr was performedby applying the acid digestion method to the Dome Fuji ice core. Atmosphericfluxes of mineral and sea-salt aerosol to Dome Fuji were calculated from thetotal concentration. The average fluxes of mineral aerosol to Dome Fuji in theperiods of glacial maximum, 18.6 ± 10.1 mg·m–2·yr–1, were largerthan the value in the interglacial periods, 3.77 ± 2.20 mg·m–2·yr–1.Conversely, the fluxes of sea-salt have no significant difference between theaverage value of glacial maximum, 130 ± 55 mg·m–2·yr–1,and that of interglacial, 111 ± 54 mg·m–2·yr–1. Theresults obtained in this study suggest that the variation of mineral aerosolflux in Dome Fuji, together with climate change, was much larger than that ofsea-salt aerosol flux. This result may have occurred because the variety inthe intensity of the source and transport during the glacial-interglacialcycle is more significant for mineral aerosol than that for sea-salt aerosol.

KEYWORDS

Ice Core; Antarctica; Dome Fuji; Climate Change; Aerosol Flux; Full Digestion

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H. Sato, T. Suzuki, M. Hirabayashi, Y. Iizuka, H. Motoyama and Y. Fujii -Mineral and Sea-Salt Aerosol Fluxes over the Last 340 kyr Reconstructed from the Total Concentration of Al and Na in the Dome Fuji Ice Core,- Atmospheric and Climate Sciences, Vol. 3 No. 2, 2013, pp. 186-192. doi: 10.4236-acs.2013.32020.





Author: Hironori Sato, Toshitaka Suzuki, Motohiro Hirabayashi, Yoshinori Iizuka, Hideaki Motoyama, Yoshiyuki Fujii

Source: http://www.scirp.org/



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