Data_Sheet_1_Observations of Shallow Methane Bubble Emissions From Cascadia Margin.pdf

Open questions exist about whether methane emitted from active seafloor seeps reaches the surface ocean to be subsequently ventilated to the atmosphere. Water depth variability, coupled with the transient nature of methane bubble plumes, adds complexity to examining these questions. Little data exist which trace methane transport from release at a seep into the water column. Here, we demonstrate a coupled technological approach for examining methane transport, combining multibeam sonar, a field-portable laser-based spectrometer, and the ChemYak, a robotic surface kayak, at two shallow (

关于来自活跃海底溢出的甲烷是否能够到达表层海洋进而被输送到大气中，仍存在诸多未解之谜。水深的变化，加之甲烷气泡羽流的不稳定性，使得探究这些问题变得复杂。目前关于从溢出点至水柱中甲烷传输的追踪数据极为匮乏。在本研究中，我们展示了结合多波束声纳、便携式激光光谱仪以及ChemYak（一种机器人表面皮划艇）的耦合技术方法，以探讨甲烷传输问题，该研究在两个浅水区域进行。