Wally Land Methane Sensor Deployed 2016-05-14

The Franatech METS Methane Sensor G051-E273 was deployed on 2016-05-14 at Wally Land. Wally Land is a location within Barkley Canyon gas hydrate field, where hydrate dynamics are observed. This device is a Methane Sensor. Methane sensors measure the concentration of dissolved methane in the seawater. Gas molecules diffuse through the membrane to the detector chamber driven by the partial pressure gradient that exists between the chamber and the ambient water. The concentration difference between two solutions is referred to as methane concentration. It was deployed on a fixed platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 2.0 digital infrastructure, with quality assurance and derived data products following established practices.Franatech METS型甲烷传感器G051-E273于2016年5月14日部署于Wally Land站点。Wally Land坐落于巴克利峡谷天然气水合物田（Barkley Canyon gas hydrate field）内，该区域为天然气水合物动力学观测点位。本设备为甲烷传感器，用于测定海水中溶解甲烷的浓度。气体分子在检测腔（detector chamber）与周围水体之间的分压差（partial pressure gradient）驱动下，透过膜（membrane）扩散至检测腔内。两种溶液间的浓度差被定义为甲烷浓度。该传感器部署于固定式平台之上。本次部署获取的全部数据已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 2.0数字基础设施对外共享；所有数据均遵循既定规范开展质量管控，并生成衍生数据产品。