Atmos Environ Pt A-Gen Top, 27:2803-2814, 1993.
abstract bibtex
abstract bibtex
Airborne concentrations and size distributions of 15
elements over the Greenland Ice Sheet have been measured during a
one-month period in March 1989. The concentrations are relatively
uniform, varying by less than a factor of three for virtually all
of the elements. Notable exceptions are Na and Cl which vary by
more than an order of magnitude; these differences can probably be
accounted for by the link with transport from the oceans
surrounding Greenland, although a significant fraction of the Na is
of crustal origin in some samples. The size distributions show
strong peaks in the accumulation mode(0.4-1.0 mu m) or the coarse
particle mode (1.0-2.5 mu m); some species show bimodal
distributions with the presence of both modes. The aerosol
chemistry and size distribution data are consistent with back
trajectories and local weather conditions. For example, relatively
high concentrations of Pb, Zn, Ni, Fe, and Mn in the accumulation
mode during one of the runs are associated with trajectories from
industrial regions of the Soviet Arctic. The elements Si, Al, Fe,
K, Ca, Mn, and Ti in the coarse mode are believed to be dominated
by crustal sources. However, some runs show the presence of an
accumulation mode for most of these elements (with the exception of
Al), suggestive of combustion sources. Overall, the results show
that use of an impactor with several submicron size cuts combined
with a suitable data inversion program can provide insights into
the sources and transport of aerosols at remote locations such as
the Greenland Ice Sheet.
C1 CARNEGIE MELLON UNIV,DEPT CIVIL ENGN,PITTSBURGH,PA 15213.
FINNISH METEOROL INST,DEPT AIR QUAL,SF-00810 HELSINKI,FINLAND. INST
NUCL WETTSCHAPPEN,B-9000 GHENT,BELGIUM.
@article{
title = {Size distributions of atmospheric trace-elements at dye-3, greenland .2. Sources and transport},
type = {article},
year = {1993},
pages = {2803-2814},
volume = {27},
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citation_key = {Jaffrezo:AEPAGT:1993b},
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abstract = {Airborne concentrations and size distributions of 15
elements over the Greenland Ice Sheet have been measured during a
one-month period in March 1989. The concentrations are relatively
uniform, varying by less than a factor of three for virtually all
of the elements. Notable exceptions are Na and Cl which vary by
more than an order of magnitude; these differences can probably be
accounted for by the link with transport from the oceans
surrounding Greenland, although a significant fraction of the Na is
of crustal origin in some samples. The size distributions show
strong peaks in the accumulation mode(0.4-1.0 mu m) or the coarse
particle mode (1.0-2.5 mu m); some species show bimodal
distributions with the presence of both modes. The aerosol
chemistry and size distribution data are consistent with back
trajectories and local weather conditions. For example, relatively
high concentrations of Pb, Zn, Ni, Fe, and Mn in the accumulation
mode during one of the runs are associated with trajectories from
industrial regions of the Soviet Arctic. The elements Si, Al, Fe,
K, Ca, Mn, and Ti in the coarse mode are believed to be dominated
by crustal sources. However, some runs show the presence of an
accumulation mode for most of these elements (with the exception of
Al), suggestive of combustion sources. Overall, the results show
that use of an impactor with several submicron size cuts combined
with a suitable data inversion program can provide insights into
the sources and transport of aerosols at remote locations such as
the Greenland Ice Sheet.
C1 CARNEGIE MELLON UNIV,DEPT CIVIL ENGN,PITTSBURGH,PA 15213.
FINNISH METEOROL INST,DEPT AIR QUAL,SF-00810 HELSINKI,FINLAND. INST
NUCL WETTSCHAPPEN,B-9000 GHENT,BELGIUM.
},
bibtype = {article},
author = {Jaffrezo, J L and Hillamo, R E and Davidson, C I and Maenhaut, W},
journal = {Atmos Environ Pt A-Gen Top}
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