[A-CG48] Water and sediment dynamics from land to coastal zones

Tue. May 27, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Shinichiro Kida(Research Institute for Applied Mechanics, Kyushu University), Yuko Asano(Graduate School of Agricultural and Life Sciences, The University of Tokyo), Keiko Udo(Department of Civil and Environmental Engineering, Tohoku University), Dai Yamazaki(Institute of Industrial Sciences, The University of Tokyo)

The dynamics of water and sediments from land to the ocean, such as hillslope runoff generation, river flow and flooding, sediment transport and geomorphology, and coastal river plumes, are inter-connected through processes with various spatial- and temporal-scales. As compound disasters and environmental changes often involve these processes occurring simultaneously at multiple scales, integrated understanding of the dynamics of water and sediments across hillslope, floodplain, river mouth, and coastal-zone are required. We welcome wide-range studies related to the dynamics of water and sediments from land to the ocean with theoretical, observational, and simulation-based approaches such as basic process understanding, in-situ and remote-sensing observations, big-data analysis and supercomputing. (We also have a corresponding English).

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5:15 PM - 7:15 PM

[ACG48-P01] Estimating the flow field of river fronts using AUVs

Yusei Umeda¹, *Shinichiro Kida² (1. Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 2.Research Institute for Applied Mechanics, Kyushu University)

5:15 PM - 7:15 PM

[ACG48-P02] Redefining the regions of Freshwater Influence of coastal seas based on the nitrogen cycle
using a hybrid Eulerian-Lagrangian NPZD model

*Shinichiro Kida¹, Yasuhiro Hoshiba², Yoshimasa Matsumura³, Takao Kawasaki³ (1.Research Institute for Applied Mechanics, Kyushu University, 2.JAMSTEC, 3.Atmosphere and Ocean Research Institute, the University of Tokyo)

5:15 PM - 7:15 PM

[ACG48-P03] Theoretical Considerations on Stickiness Estimation from Tank Experiments and Attempts to Incorporate Polydispersity

*Keisuke Nishino^1,2, Yutaka Yoshikawa¹ (1.Kyoto University Graduate School of Science, 2.Central Research Institute of Electric Power Industry)

5:15 PM - 7:15 PM

[ACG48-P04] Relationship between rainfall and river water level fluctuations in rice paddies in Satoyama – Field observation at Fugenji River in Kyotanabe City: Preliminary report

*Akihiro Shoda¹, Miwa Yokokawa² (1.Osaka Institute of Technology Graduate School of Information Science and Technology, 2.Osaka Institute of Technology Faculty of Information Science and Technology)

5:15 PM - 7:15 PM

[ACG48-P05] Long-term observations reveal runoff response during heavy rainfall in mountain catchment

*Yuko Asano¹, Kojyu Kishimoto¹, Hirokazu Haga² (1.Graduate School of Agricultural and Life Sciences, The University of Tokyo, 2.Tottori University graduate school agriculture study course)

5:15 PM - 7:15 PM

[ACG48-P06] Improving Flood Forecast in Large-Scale River Models through Data Assimilation of Satellite Observed Flood Extent

*Yukinori Kojima¹, Dai Yamazaki¹ (1.University of Tokyo)

5:15 PM - 7:15 PM

[ACG48-P07] Satellite-based estimate of river suspended sediment without calibration requirement

*Dai Yamazaki¹, Kota Ishida¹, Dhruv Sehgal¹ (1.Institute of Industrial Sciences, The University of Tokyo)

5:15 PM - 7:15 PM

[ACG48-P08] Tidal sediment transport and its change in a brackish lake as suggested by grain-size component analysis: a case study from Lake Hinuma, Japan

*Naofumi Yamaguchi¹, Ayaka Miura² (1.Global and Local Environment Co-creation Institute, Ibaraki University, 2.Department of science, Ibaraki University)

5:15 PM - 7:15 PM

[ACG48-P09] Grain Size-Specific Assessment of the Impact of River Channel Characteristics on Long-Term Sediment Supply from Rivers to the Coast

*Shimon Suzuki¹, Keiko Udo¹ (1.Graduate School of Engineering, Tohoku University)

5:15 PM - 7:15 PM

[ACG48-P10] TIME SERIES ANALYSIS OF SEDIMENT PRODUCTION USING RUSLE

*Ruku Ishiwari¹, Keiko Udo¹, Yoshiyuki Yokoo² (1.Tohoku University, 2.Fukushima University)

Session information

[A-CG48] Water and sediment dynamics from land to coastal zones

[ACG48-P01] Estimating the flow field of river fronts using AUVs

[ACG48-P02] Redefining the regions of Freshwater Influence of coastal seas based on the nitrogen cycle
using a hybrid Eulerian-Lagrangian NPZD model

[ACG48-P03] Theoretical Considerations on Stickiness Estimation from Tank Experiments and Attempts to Incorporate Polydispersity

[ACG48-P04] Relationship between rainfall and river water level fluctuations in rice paddies in Satoyama – Field observation at Fugenji River in Kyotanabe City: Preliminary report

[ACG48-P05] Long-term observations reveal runoff response during heavy rainfall in mountain catchment

[ACG48-P06] Improving Flood Forecast in Large-Scale River Models through Data Assimilation of Satellite Observed Flood Extent

[ACG48-P07] Satellite-based estimate of river suspended sediment without calibration requirement

[ACG48-P08] Tidal sediment transport and its change in a brackish lake as suggested by grain-size component analysis: a case study from Lake Hinuma, Japan

[ACG48-P09] Grain Size-Specific Assessment of the Impact of River Channel Characteristics on Long-Term Sediment Supply from Rivers to the Coast

[ACG48-P10] TIME SERIES ANALYSIS OF SEDIMENT PRODUCTION USING RUSLE

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