TY  - Data
T1  - Analysis data of sea ice core in the 21st Antarctic expedition of China from 2004 to 2005
A1  - Hu hongqiao
DO  - 10.12072/ncdc.azs.db3627.2023
PY  - 2020
DA  - 2020-12-24
PB  - National Cryosphere Desert Data Center
AB  - In this data set, five ice cores were drilled near Zhongshan station and Neila Bay during 2004-2005. The data of length, density, salinity and weight were measured. Ice cores are cores drilled from the interior of glaciers. Because of the low temperature, the snow does not melt. Every year, the snow forms a layer of sediment. Year after year, the ice layer gradually forms from the bottom to the top, and the older the ice age is, the more the ice core is formed. In winter, the temperature is low, and the snow is fine and dense; in summer, the temperature is high, and the snow is coarse and loose; therefore, there are significant differences in stratification structure between the ice layers formed by snow cover in winter and summer, just like the tree ring.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/fe35d3ee-0de1-11e6-a761-5cc5d45ad3ae
ER  -