B032
Investigating Optical Signatures following the 2022 Tonga Eruption from Remote Sensing Ocean Color Observations

Session ID#: 158783

Session Description:
Ocean color via satellite sensors is often used for detecting, monitoring, and mapping surface objects following volcanic eruptions. In this study, we examine the high signal discolored water patch which appeared after the enormous 2022 Tonga eruption - observing chlorophyll-a concentration, backscattering of particles, and remote sensing reflectance using daily retrievals from MODIS (1 km spatial resolution) and Suomi-VIIRS (750 m resolution) from 10 January to 02 February 2022.  Further we observe the influence of ocean currents on dispersal patterns of the patch. 

This study demonstrates the usefulness of ocean color products to track the expanse of floating and suspended material which reach nearby islands and populations. It has also shown that based on the site of an eruption different mixtures of substances are released and therefore require different ocean color methods for detecting the studied parameters.

Index Terms:

0460 Marine systems [BIOGEOSCIENCES]
0480 Remote sensing [BIOGEOSCIENCES]
4855 Phytoplankton [OCEANOGRAPHY: BIOLOGICAL]
9355 Pacific Ocean [GEOGRAPHIC LOCATION]

Primary Convener:  Andra Whiteside, Aix Marseille University, Marseille Cedex 03, France
Convener:  Cecile Dupouy, Mediterranean Institute of Oceanography, Environmental Chemistry, Marseille Cedex 09, France
Student/Early Career Convener:  Andra Whiteside, Aix Marseille University, Marseille Cedex 03, France
 
Impact of Tonga Volcanic Eruption on the Ocean Parameters Using ARGO and Multi-Satellite Data (1196232)
Ramesh P Singh, Indian Institute of Technology Mandi, School of Engineering, Mandi, India; Chapman University, Orange, CA, United States, Akshansha Chauhan, Center for Space and Remote Sensing Research, National Central University, Taoyuan, Taiwan, Feng Jing, Institute of Earthquake Forecasting, China Earthquake Administration, Beijing, China, Jacques Zlotnicki, French National Centre for Scientific Research (CNRS), Aubière, France and Hieu Tran, Chapman Univesrity, School of Life and Environmental Sciences, Garden Grove, United States
See more of: Biogeosciences
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