Vibrocorer for undisturbed sampling of firn aquifer layers in Greenland: general concept  

作　　者：Pavel TALALAY XIAN Tao FAN Xiaopeng LI Bing LI Yazhou GONG Da 

机构地区：[1]Polar Research Center,Jilin University,Changchun 130000,China [2]China University of Geosciences(Beijing),Beijing 100083,China

出　　处：《Advances in Polar Science》2023年第3期232-235,共4页极地科学进展（英文版）

基　　金：supported the by the National Key R&D Program of China (Grant no. 2021YFC2801400)。

摘　　要：The firn aquifer beneath the Greenland Ice Sheet may play a significant role in rising sea level. Both traditional mechanical drilling and electric thermal drilling are poorly adapted for effective, low-disturbance sampling in firn aquifers. We propose using a vibrocoring technique for the undisturbed sampling of dry firn and firn aquifer layers. A remote-controlled vibrocorer is designed to obtain 1-m-long cores with a diameter of 100 mm. The depth capacity of the system is approximately 50 m. The total weight of the vibrocoring system with the surface auxiliary equipment is approximately 110 kg, and corer assembly itself weighs ~60 kg.

关 键 词：Greenland Ice Sheet undisturbed sampling vibrocoring firn aquifer 

分 类 号：P343.6[天文地球—水文科学]