Collaborative Research: Strombolian eruptions, magma degassing, and hydrothermal discharge at an active submarine arc volcano

2006年4月，在西太平洋马里亚纳弧的海底火山NW Rota-1进行了一次深海爆炸（斯特隆波利亚）火山喷发的非同寻常的观测。这项研究为返回火山收集观测和分析数据以及随后的岸上数据分析和解释提供了资金。包括水听器、化学传感器、流速计和羽流感应装置在内的仪器将在喷发地点部署一年。在巡游期间，将进行目视观察。还将对活火山喷发口的熔岩、气体和流体进行时间序列收集。还将对当地热液喷口地点的喷口流体和生物标本进行取样。就科学影响而言，这项研究提供了一个机会来了解到目前为止不可能直接研究的火山过程。与空气相比，由于水的粘度高，在Rota 1号可以进行比在地面环境中更近距离和更具体的斯特龙堡火山喷发观察和采样。因此，这项工作揭示了有助于解开高度破坏性的爆炸性火山活动的喷发机制的关键过程。更广泛的影响包括通过媒体进行公众宣传。这项工作还涉及机构间参与、跨学科的机构间合作和培训一名研究生。

In April 2006, extraordinary observations of a deep-sea explosive (Strombolian) volcanic eruption were made at NW Rota-1, a submarine volcano in the Mariana arc of the western Pacific. This research funds a return to the volcano to collect observational and analytical data and its subsequent on-shore data analysis and interpretation. Instruments including hydrophones, chemical sensors, current meters, and plume sensing devices will be deployed at the eruption site for one year. During the cruises, visual observations will made. A time-series collection of lava, gas and fluids at the active volcanic vent will also take place. Vent fluids and biological specimens from local hydrothermal vent sites will also be sampled. In terms of scientific impact, the research provides an opportunity to learn about volcanological process that have been impossible to study directly until now. Owing to the high viscosity of water, compared to air, closer and more specific observation and sampling of a Strombolian eruption can take place at Rota 1 than can be accomplished in subaerial settings. As a result, this work reveals critical proceses that help unravel eruptive mechanism of a highly destructive type of explosive volcanism. Broader impacts include public outreach via the media. The work also involves inter-Agency participation, an interdisciplinary inter-institutional collaboration, and the training a graduate student.