TY  - Data
T1  - Topographic data set of Qiyi glacier bottom in Qilian Mountains in 2015
A1  - Li zhen
A1  - Wei wenxia
DO  - 10.12072/ncdc.DIMaC.db0021.2020
PY  - 2020
DA  - 2020-12-11
PB  - National Cryosphere Desert Data Center
AB  - This data set is aimed at Qi Yi glacier in Qilian Mountain. The data set includes serial number, longitude, latitude and thickness. The data set contains 326 measuring points. Ground penetrating radar (GPR) (pulse ekko pro100) is used for thickness measurement. Firstly, the propagation velocity of radar wave velocity in glacier ice is measured, and the related parameters of GPR are modified and set. The center frequency is 100MHz, the antenna distance is 1.5m, and the measurement interval is 20m. At the same time, the GPS positioning of the survey points is carried out. Protocol sharing is adopted. The data set contains four fields: serial number, longitude (unit: Degree (°)), latitude (unit: Degree (°)) and elevation (unit: meter (m), that is, glacier thickness of the current year). The space datum is WGS84, and the accuracy of radar thickness measurement is controlled within 1cm.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/e2d30bc1-1186-422c-afd7-fbb16d51a418
ER  -