Key Points:
- Lagrangian-based HYSPLIT modelling system used to estimate volcanic
ash particle trajectories.
- HYSPLIT simulation took place before and after the massive eruption on
15th January 2022 (termed as pre-caldera and
post-caldera respectively in Section 5)
- Volcanic ash particle deposition and volcanic ash particle position
simulated using HYSPLIT for the HTHH submarine volcano massive
eruption event.
Abstract
Volcano-seismic signals such as long-period (LP) events and tremors are
important indicators for volcanic activity and unrest. Explosive
volcanic eruptions are stunning phenomena that influence the Earth’s
natural systems and climate in a variety of ways. This paper discusses
the mid-week January 2022 eruption of the HTHH submarine volcano,
especially on 15th January an event with many impacts
in the region (dynamic, chemical, climate breakdown). Given the
potential for a volcanic eruption to affect climate, the oceanic system,
or climate variability, consistent and understandable modelling of these
exceptional events is critical.
The main objective was to determine the volcanic effects in our
atmospheric boundary layer (ABL) during the multiple eruptive events
occurred on January 2022 at HTHH. Our discussion also contributes to
understanding the underlying Earth system dynamics triggered by
cataclysmic volcanic eruptions. The Hybrid Single-Particle Lagrangian
Integrated Trajectory (HYSPLIT) model system developed by the National
Oceanic and Atmospheric Administration’s (NOAA) Air Resources Laboratory
was used to deliberate the effects caused by the multiple eruptions of
HTHH on mid-week of January 2022. Our modelling results include model
trajectories at different frequency levels, volcanic ash deposition and
ash particle position from the series of multiple eruption events of
submarine volcano HTHH in the mid-week of January 2022.