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Prominent features in isotopic, chemical and dust stratigraphies from coastal East Antarctic ice sheet (Eastern Wilkes Land)

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Title
Prominent features in isotopic, chemical and dust stratigraphies from coastal East Antarctic ice sheet (Eastern Wilkes Land)
Other Titles
동남극 빙상(동부 윌크스 랜드)의 동위 원소, 화학 조성, 먼지 층서 주요 특징
Authors
B. Narcisi
B. Delmonte
J. Gabrieli
M. Frezzotti
G. Dreossi
F. Giardi
I. Crotti
V. Ciardini
M. Berto
C. Barbante
G. Baccolo
Kang, Jung-Ho
Hwang, Heejin
Hur, Soon Do
Hong, Sang-Bum
Han, Yeongcheol
S. Becagli
L. Caiazzo
R. Udisti
R. Traversi
B. Stenni
A. Spolaor
M. Severi
E. Selmo
C. Scarchilli
M. Proposito
Subject
Environmental Sciences & Ecology
Keywords
Chemical composition; Snow pit
Issue Date
2017
Citation
B. Narcisi, et al. 2017. "Prominent features in isotopic, chemical and dust stratigraphies from coastal East Antarctic ice sheet (Eastern Wilkes Land)". CHEMOSPHERE, 176(1): 273-287.
Abstract
In this work we present the isotopic, chemical and dust stratigraphies of two snow pits sampled in 2013/14 at GV7 (coastal East Antarctica: 70 410 S - 158 510 E, 1950 m a.s.l.). A large number of chemical species are measured aiming to study their potentiality as environmental changes markers. Seasonal cluster backward trajectories analysis was performed and compared with chemical marker stratigraphies. Sea spray aerosol is delivered to the sampling site together with snow precipitation especially in autumn-winter by air masses arising from Western Pacific Ocean sector. Dust show maximum concentration in spring when the air masses arising from Ross Sea sector mobilize mineral dust from ice-free areas of the Transantarctic mountains. The clear seasonal pattern of sulfur oxidized compounds allows the dating of the snow-pit and the calculation of the mean accumulation rate, which is 242 ± 71 mm w.e. for the period 2008e2013.
URI
http://repository.kopri.re.kr/handle/201206/5714
DOI
http://dx.doi.org/10.1016/j.chemosphere.2017.02.115
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