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Summary: The influence of regional circulation patterns on wet and dry
mineral dust and sea salt deposition over Greenland
M. A. Hutterli Æ T. Crueger Æ H. Fischer Æ K. K. Andersen Æ C. C. Raible Æ
T. F. Stocker Æ M. L. Siggaard-Andersen Æ J. R. McConnell Æ R. C. Bales Æ
J. F. Burkhart
Received: 30 June 2006 / Accepted: 16 October 2006
Ó Springer-Verlag 2006
Abstract Annually resolved ice core records from
different regions over the Greenland ice sheet (GrIS)
are used to investigate the spatial and temporal vari-
ability of calcium (Ca2+
, mainly from mineral dust) and
sodium (Na+
, mainly from sea salt) deposition. Cores
of high common inter-annual variability are grouped
with an EOF analysis, resulting in regionally repre-
sentative Ca2+
and Na+
records for northeastern
and central Greenland. Utilizing a regression and
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