Multidisciplinary and Interdisciplinary (M)
Session Sub-category Intersection(IS)
Session ID M-IS02
Title Ocean plastics, an earth science perspective
Short Title Ocean plastics
Main Convener Name Haodong Xu
Affiliation The University of Tokyo
Co-Convener 1 Name Tahira Irfan
Affiliation Research Institute for Applied Mechanics, Kyushu University
Co-Convener 2 Name Chisa Higuchi
Affiliation Research Institute for Applied Mechanics, Kyushu University
Co-Convener 3 Name Atsuhiko Isobe
Affiliation Kyushu University, Research Institute for Applied Mechanics
Session Language 
E
Scope 
Mismanaged plastic wastes accounting for 70% of marine debris remain persistently in the marine environment, even if they are being degraded and fragmentized to tiny microplastics. To date, it is far from answering how this anthropogenic, buoyant, and persistent matter which was first appeared in the earth history, contaminates (or is incorporated into) the earth system. The ocean plastic study requires the insight and methodology of a variety of earth sciences such as the oceanography, geology, and paleontology. We welcome studies on the plastic circulation from the land/atmosphere to upper oceans and bottom sediments, studies on microplastics as a proxy of the "Anthropocene", and studies to establish procedures in monitoring and analyzing macro/microplastics.
Presentation Format Oral and Poster presentation
Invited Authors Atsuhiko Isobe (Kyushu University, Research Institute for Applied Mechanics)
Jason Hamilton Davison (The Catholic University of America)
Time Presentation No Title Presenter
Oral Presentation May 26 AM1
9:00 - 9:15 MIS02-01 Strong and weak settling processes transporting small microplastics into the intermediate layer of the North Pacific Atsuhiko Isobe
9:15 - 9:30 MIS02-02 Microplastic concentration, carbonyl index, and ecological risks in surface seawater of southeastern coastal region off Japan, Northwestern Pacific Zijiang Yang
9:30 - 9:45 MIS02-03 Effect of sand properties on foamed polystyrene fragmentation Nao Sagawa
9:45 - 10:00 MIS02-04 Source identification of ALDFG from the international eel/hagfish fisheries of the North Pacific Ocean,
and measures to reduce its impact 		Berg J Carl
10:00 - 10:15 MIS02-05 Plastic-Associated Radiocesium and Microbial Communities in Coastal Rivers of Fukushima, Japan Batdulam Battulga
10:15 - 10:30 MIS02-06 Analysis of Long-term Microplastic Settling Flux Variability: A Sinking Model Approach Kenki Kasamo
Oral Presentation May 26 AM2
10:45 - 11:00 MIS02-07 botell.ai: Open Source Plastic Bottle Tracking Jason Hamilton Davison
11:00 - 11:15 MIS02-08 The Use of Drones for Marine Litter Monitoring: Technical and Scientific Advances Umberto Andriolo
11:15 - 11:30 MIS02-09 Laboratory Measurement and Classification Result of Plastic Marine Debris Using Spectral Information Ahmad Shaqeer Mohamed Thaheer
11:30 - 11:45 MIS02-10 Enhancing Marine Plastic Debris Detection: A Methodological Approach Using NDSI
and Few-Shot Learning 		Ye Min Htay
11:45 - 12:00 MIS02-11 3D Simulation of Microplastic Dynamics Incorporating Upward Terminal Velocities Corresponding to Hydrodynamic Spatial and Temporal Changes in Hiroshima Bay Aini Maryam Ridwan
12:00 - 12:15 MIS02-12 A numerical model approach on floating marine plastic debris with wind-induced re-drifting process from beaches along the Gulf of Thailand Pontipa Luadnakrob
Presentation No Title Presenter
Poster Presentation May 26 PM3
MIS02-P01 Analysis of long-term variation and “regime shift” in microplastics Chisa Higuchi
MIS02-P02 High-resolution mapping of macroplastics (>5 mm) in surface sediments of the northwestern Kyushu region Mutusmi Iizuka
MIS02-P03 Age Distribution Analysis of Microplastics Collected in Urban River Hinata Suzuki
MIS02-P04 Distribution Patterns and Characteristics of Plastic Debris Along the Sanriku Coast in Japan Batdulam Battulga
MIS02-P05 Reliable estimation of fine-sized microplastic deposition rates using marine sediment cores Michinobu Kuwae
MIS02-P06 Vertical Distribution of Small Microplastics in the Southern Coast of Japan: Comparison with Water Mass Structure Yuto Fukatsu
MIS02-P07 A preliminary experiment of floating microplastic tracking model with a feedback to skin-layer temperature distribution Ryodai Kawano
MIS02-P08 AI-Driven Beach Litter Detection with Digital Twin: Automatic Training Data Generation Sota Kuwada