As part of the ongoing Tonga Eruption Seabed Mapping Project, a team of scientists conducted a deep-water survey to better understand the impacts of the January 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption on the ocean environment. The research team used a technology developed by NOAA’s Pacific Marine Environmental Lab (PMEL) to determine the level of ongoing volcanic and hydrothermal activity within the post-eruption caldera. The Miniature Autonomous Plume Recorder (MAPR) instruments made it possible for scientists to capture direct measurements of the water column up to 300 meters deep. This is the first time that such a survey has been conducted entirely remotely, using an uncrewed surface vessel that was operated and monitored by engineers and scientists located across the globe.
Learn more about this PMEL mission and NOAA’s technological innovation effort.