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Eleven year cycle of dust concentration variability observed in the dust profile of the GISP2 Ice core from central Greenland: Possible solar cycle connection
Author(s) -
Ram Michael,
Stolz Michael,
Koenig Gerson
Publication year - 1997
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/97gl02521
Subject(s) - ice core , groenlandia , solar cycle , climatology , solar variation , atmospheric sciences , period (music) , environmental science , geology , oceanography , ice sheet , physics , solar wind , quantum mechanics , magnetic field , acoustics
We have re‐examined the dust record from the GISP2 ice core retrieved from central Greenland and found that the background dust concentration is modulated with a period of 11 years all the way back to ice from at least 100,000 yrs BP. The only known, relevant, naturally occurring phenomenon with such a period is the well‐known solar cycle. We believe that the background modulation we observe is related to the solar cycle and discuss this hypothesis.