Filchner Ice Shelf cavity noble gas (helium and neon) measurements

To obtain noble gas samples from the water column below an ice shelf, we have constructed a new gas-tight in-situ water sampler to prevent the water samples from the sub-glacial cavity from gas-fractionation and degassing due to freezing and expansion. […]

为从冰架下方的水柱中获取稀有气体样本，我们设计并构建了一种新型的气密式原位水样采集器，以防止冰川下腔中的水样在冻结和膨胀过程中因气体分离和逸散而导致的气体组分变化。