Patricia Bay Gas Tension Device Deployed 2010-12-09

The Pro-Oceanus GTD Pro 24-036-08 was deployed on 2010-12-09 at Patricia Bay. Patricia Bay is located in the Saanich Inlet, on the southern tip of Vancouver Island. This device is a Gas Tension Device. Gas Tension Device (GTD) instruments measure gas tension, or total dissolved gas pressure. The total dissolved gas pressure in seawater is the sum of the partial pressures of all dissolved gases. The GTD operates by equilibrating a small volume of air trapped behind a semi-permeable membrane that is resistant to seawater. When the air sample is isolated from hydrostatic pressure, the measured pressure is solely from the gases in the seawater. This internal pressure is measured using a very stable pressure sensor. 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.

Pro-Oceanus GTD Pro 24-036-08型设备于2010年12月9日在帕特里夏湾（Patricia Bay）完成布放。帕特里夏湾坐落于温哥华岛南端的萨尼奇湾（Saanich Inlet）内部。本设备为气体张力装置（Gas Tension Device，简称GTD），此类仪器用于测量气体张力，亦即总溶解气体压力。海水中的总溶解气体压力为所有溶解气体的分压总和。该GTD的工作原理为：将少量空气封闭在抗海水半透膜后方，使其与海水达成气体平衡；当该空气样本与静水压力隔离后，测得的压力仅来源于海水中的溶解气体，内部压力通过高稳定性压力传感器完成测量。本设备布设于固定平台之上。本次布放获取的相关数据已完成归档，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完成质量管控，并生成符合标准的衍生数据产品。