scholarly journals High-resolution trace element records of an ice core from the eastern Tien Shan, central Asia, since 1953 AD

2011 ◽  
Vol 116 (D12) ◽  
Author(s):  
Yaping Liu ◽  
Shugui Hou ◽  
Sungmin Hong ◽  
Soon Do Hur ◽  
Khanghyun Lee ◽  
...  
2017 ◽  
Vol 122 (14) ◽  
pp. 7505-7518 ◽  
Author(s):  
Wangbin Zhang ◽  
Shugui Hou ◽  
Yaping Liu ◽  
Shuangye Wu ◽  
Wenling An ◽  
...  

2016 ◽  
Vol 57 (71) ◽  
pp. 265-272 ◽  
Author(s):  
Chaomin Wang ◽  
Yaping Liu ◽  
Wangbin Zhang ◽  
Sungmin Hong ◽  
Soon Do Hur ◽  
...  

AbstractTwo ice cores drilled to the bottom were recovered from Miaoergou flat-topped glacier (43°03'19“N, 94°19'21“E; 4512 ma.s.l.), eastern Tien Shan, central Asia, in 2005. A high–resolution record of cadmium was established by applying inductively coupled plasma mass spectrometry to one of the ice cores (57.6 m), covering a 228 year period from AD 1776 to 2004. The results showed long-term variations of atmospheric transport and deposition of cadmium at high altitudes. Trend analysis based on the sequential Mann-Kendall test and the analysis of crustal enrichment factors of the cadmium shows that natural contribution, mainly from rock and mineral dust, dominated the atmospheric cycles of cadmium during the period AD 1776–1957, which was confirmed by the significant correlation between the winter North Atlantic Oscillation (NAO) index and annual cadmium concentration. The concentration of cadmium increased sharply from AD 1957 to 2004, suggesting increasing influence from human activities, such as metals production. The ice–core record indicated increasing atmospheric cadmium pollution in response to rapid economic growth after AD 1957 in the region.


2016 ◽  
Vol 131 ◽  
pp. 17-28 ◽  
Author(s):  
B. Grigholm ◽  
P.A. Mayewski ◽  
V. Aizen ◽  
K. Kreutz ◽  
C.P. Wake ◽  
...  

2020 ◽  
Vol 66 (260) ◽  
pp. 1080-1080
Author(s):  
Chaomin Wang ◽  
Shugui Hou ◽  
Hongxi Pang ◽  
Yaping Liu ◽  
Heinz Walter Gäggeler ◽  
...  
Keyword(s):  
Ice Core ◽  

2019 ◽  
Vol 51 (1) ◽  
pp. 299-312 ◽  
Author(s):  
Nozomu Takeuchi ◽  
Shuntaro Sera ◽  
Koji Fujita ◽  
Vladimir B. Aizen ◽  
Jumpei Kubota

2003 ◽  
Vol 30 (18) ◽  
Author(s):  
Karl J. Kreutz ◽  
Cameron P. Wake ◽  
Vladimir B. Aizen ◽  
L. DeWayne Cecil ◽  
Hans-Arno Synal

2021 ◽  
Vol 251 ◽  
pp. 118273
Author(s):  
Xiangyue Chen ◽  
Jianli Ding ◽  
Jie Liu ◽  
Jingzhe Wang ◽  
Xiangyu Ge ◽  
...  
Keyword(s):  

2017 ◽  
Vol 29 (4) ◽  
pp. 382-393
Author(s):  
A. Massam ◽  
S.B. Sneed ◽  
G.P. Lee ◽  
R.R. Tuckwell ◽  
R. Mulvaney ◽  
...  

AbstractA model to estimate the annual layer thickness of deposited snowfall at a deep ice core site, compacted by vertical strain with respect to depth, is assessed using ultra-high-resolution laboratory analytical techniques. A recently established technique of high-resolution direct chemical analysis of ice using ultra-violet laser ablation inductively-coupled plasma mass spectrometry (LA ICP-MS) has been applied to ice from the Berkner Island ice core, and compared with results from lower resolution techniques conducted on parallel sections of ice. The results from both techniques have been analysed in order to assess the capability of each technique to recover seasonal cycles from deep Antarctic ice. Results do not agree with the annual layer thickness estimates from the age–depth model for individual samples <1 m long as the model cannot reconstruct the natural variability present in annual accumulation. However, when compared with sections >4 m long, the deviation between the modelled and observational layer thicknesses is minimized to within two standard deviations. This confirms that the model is capable of successfully estimating mean annual layer thicknesses around analysed sections. Furthermore, our results confirm that the LA ICP-MS technique can reliably recover seasonal chemical profiles beyond standard analytical resolution.


Sign in / Sign up

Export Citation Format

Share Document