In 2017 and 2018, Jilin University sent three people to participate in the "Ekström Ice shelf hot water drilling in East Antarctica" project organized by the Alfred Wegener Institute, and carried out the Antarctic field test of JLU-developed vibrating subglacial sediment sampler. Members participated in the shallow hot water drilling of 500m, drilled through the ice shelf nearly 200m deep, and successfully drilled into the subglacial sea cavity. In the process of cooperation, we completed the field test of the vibrating subglacial sediment sampler in Antarctica, and developed the low-disturbance hammer subglacial sediment sampler in the Antarctic field, completed a technological innovation, and successfully obtained the 1.28m column subglacial sediment samples based on the technology.

German Antarctic hot water drill and subglacial sediment sampling site

         In 2019, Jilin University sent staff to participate in the "West Antarctic Ross Ice Shelf Field thermal drill Comprehensive Investigation" project organized by Victoria University of Wellington, and tested the JLU-V III automatic subglacial sediment vibration sampler independently developed by JLU. The advanced British Antarctic Survey (BAS) hot water drilling system was used in this field expedition, which can achieve high efficiency ice drilling and automatic reaming function. After the formation of the hot water borehole, a comprehensive investigation of the hot water drill of the ice shelf was carried out, including the measurement of the physical parameters of the water, sampling of the subglacial water, exploration of the bottom of the ice shelf, sampling of the subglacial sediment, etc. The ice thickness of the operation site was 600 meters, the distance between the surface and the sediment layer was 630 meters, and the borehole diameter of the hot water drill was about 350 mm. In the process of cooperation, the field test of JLU-V III automatic subglacial sediment vibration sampler in Antarctica was completed, which verified the feasibility of the equipment.

Participated in the New Zealand Antarctic scientific expedition and successfully applied the sediment vibration sampler