BaySys Physical Ice Sampling Data - 2017-2018

Physical ice sampling data collected during the BaySys 2017 Churchill River and Mobile Ice Survey, the 2017 Nelson Estuary Landfast Ice Survey and the 2018 Hudson Bay Amundsen Campaign

Ice cores were collected using the 9 cm Mark II Kovacs core barrel in conjunction with teams 1, 3, and 4 from 2 mobile ice floes. Cores were bagged in core bags, labeled in the field, and transferred to CNSC. Coreswere cut with a metal Japanese saw into 5 cm portions outside of the CNSC main building (ambient temperature < -20 °C) in order to prevent thawing. All edges of each core section were then trimmed with ceramic knives to remove ice that came into contact with the core barrel or the metal saw. Trimmed sections were double bagged in new Ziploc bags and kept at room temperature in order to melt.

物理冰样数据，收集自2017年BaySysChurchill河流域与移动冰原调查、2017年Nelson河口陆缘冰调查以及2018年哈德逊湾Amundsen远征。采用9厘米Mark II Kovacs冰芯桶，联合1、3、4组团队从两块移动冰原上采集冰芯。冰芯被封装于冰芯袋中，并在现场进行标记，随后转移至加拿大国家核安全委员会（CNSC）。在CNSC主楼外（环境温度低于-20°C）使用金属日本锯将冰芯切割成5厘米的部分，以防止融化。随后，使用陶瓷刀对每个冰芯部分的边缘进行修整，去除与冰芯桶或金属锯接触的冰。修整后的部分被双层封装于新的Ziploc袋中，并在室温下保存以促进融化。