hou_qin_2001.html
Bulletin of Glaciological Research 18 (2001) 19-21
©Japanese Society of Snow and Ice
Change of isotopic and ionic profiles at two successive snow pits on the No.1 Glacier at the head of Ürümqi River, Northwest China
HOU Shugui and QIN Dahe
Laboratory of Ice Core and Cold Regions
Environment, Cold and Arid Regions Environmental and Engneering
Institute, Chinese Academy of Sciences, Lanzhou 730000 P R China
Abstract
Two snow pits were successively sampled at the same spot on the No.1 Glacier at the head of Urumqi River, Tian Shan, China, on June 4 and 17, 1996, respectively. Through comparison of the d18O and ionic profiles of the two snow pits, we suggest that changes of stratigraphic d18O variations as water percolated through the snowpack are less significant than those of ionic concentrations. Therefore, it is necessary to distinguish how much the snow chemical records can reflect the original climatic and environmental conditions during precipitation before we can use the ice core records for paleoclimate reconstruction with high confidence.
