Spatial variability of chemical tracers in surface snow along the traverse route from the coast to 1000 km inland at east Dronning Maud Land, Antarctica

Suzuki, Toshitaka and Iizuka, Yoshinori and Furukawa, Teruo and Matsuoka, Kenichi and Kamiyama, Kokichi and Watanabe, Okitsugu (2003) Spatial variability of chemical tracers in surface snow along the traverse route from the coast to 1000 km inland at east Dronning Maud Land, Antarctica. Advances in Polar Science, 14 (1). pp. 48-56.

PDF Download (2MB)

Abstract

We measured the spatial variability of Cl(-), Na(+), SO(2-)4, NO(-)3 and (7)Be concentrations in snow cover along the traverse route from S16 to Dome Fuji station in east Dronning Maud Land, Antarctica. The concentrations of Cl(-) and Na(+) at the coast exponentially decreased with distance from the coast up to 200 km inland. Between 200 - 1000 km inland, the concentrations of Na(+) were nearly constant. On the other hand, the concentrations of Cl(-) increased with distance beyond 750 km inland. Furthermore, the contribution factors between Cl(-) and Na(+) decreased and the Cl(-)/Na(+) ratio and the nssCl(-)/Cl(-) ratio increased toward the interior of the continent. These results indicate that sea salt aerosols are transported from the coastal region toward the inland region of the Antarctic continent, and that a source of Cl(-) other than sea salt exists in the inland plateau of Antarctica. The concentrations of SO(2-)4, NO(-)3 and (7)Be in snow were relatively high in the coastal region and the inland plateau region compared with those in the katabatic-wind region.

Item Type:	Article
Related URLs:
Keywords:	Antarctica, snow, chemistry, spatial variability, atmospheric transport.
Subjects:	Unspecified
Organizations:	Unspecified
Date Deposited:	08 May 2023 13:17
URI:	http://library.arcticportal.org/id/eprint/2253

Actions (login required)

View Item