Atmospheric and Hydrospheric Sciences (A)
Session Sub-category Complex & General(CG)
Session ID A-CG49
Title Kuroshio Large Meander
Short Title Kuroshio Large Meander
Main Convener Name Hidetaka Hirata
Affiliation Rissho University
Co-Convener 1 Name Hatsumi Nishikawa
Affiliation Japan Agency for Marine-Earth Science and Technology
Co-Convener 2 Name Yuma Kawakami
Affiliation Meteorological Research Institute
Co-Convener 3 Name Daiki Ito
Affiliation Fisheries Resources Institute, Japan Fisheries Research and Education Agency
Session Language 
J
Scope 
The Kuroshio large meander that occurred in the summer of 2017 is still ongoing, and the observational record for its duration is being updated. In addition, the Kuroshio Extension has been meandering significantly to the north since the fall of 2022. The Kuroshio large meander and the anomalous northward shift of the Kuroshio Extension significantly affect oceanic conditions. For example, it causes extreme increases in sea surface temperatures (i.e., marine heatwaves) off the Tokai and Sanriku regions. It has also been suggested that these influences extend to biogeochemistry, marine biological resources, and weather/climate. In this session, we welcome presentations from various perspectives, including physical oceanography, fisheries science, biogeochemistry, and atmospheric science, related to the Kuroshio large meander and the anomalous northward shift of the Kuroshio Extension. Through the exchange of information and discussion of various research, we will grasp our current understanding of the variability of the Kuroshio/Kuroshio Extension and its various influences and explore avenues for further research and interdisciplinary collaboration.
Presentation Format Oral and Poster presentation
Invited Authors Hideyuki Nakano (Meteorological Research Institute)
Yukito Tamura (University of Tokyo)
Toru Miyama (Japan Agency for Marine-Earth Science and Technology, Application Laboratory)
Time Presentation No Title Presenter
Oral Presentation May 26 AM1
9:00 - 9:15 ACG49-01 A new method for identifying the Kuroshio/Kuroshio Extension and its application to high-resolution ocean reanalysis data around Japan (FORA-JPN60) Hideyuki Nakano
9:15 - 9:30 ACG49-02 Kuroshio Large Meander and its interaction with path variability of the Kuroshio Extension: Insights from a long-term simulation of an eddy-resolving CESM Yukito Tamura
9:30 - 9:45 ACG49-03 Variations of the Kuroshio and Kuroshio Extension meandering paths, as seen by the SWOT altimeter Kaoru Ichikawa
9:45 - 10:00 ACG49-04 Enhancement of air-sea moisture flux in the Kuroshio and the Gulf Stream and its impacts on the atmosphere Maho Sugawara
10:00 - 10:15 ACG49-05 Reduction of Rainfall during Typhoon Passage by Warm Ocean Core Associated with Kuroshio Large Meander: A Case Study of Typhoon Talas (2011) Naoki Morita
10:15 - 10:30 ACG49-06 Increase in summer precipitation and air temperature in the Tokai district due to the Kuroshio Large Meander Shusaku Sugimoto
Presentation No Title Presenter
Poster Presentation May 26 PM3
ACG49-P01 Dynamical Analysis of Recent Changes in the Kuroshio-Oyashio Current System and Their Underlying Mechanisms Toru Miyama
ACG49-P02 Wintertime atmospheric response to extreme northward Kuroshio Extension meandering Kenji Aono
ACG49-P03 Impact of the Sea Surface Temperature of the Japan Sea on the Heavy Rainfall in the Noto Region on September 21, 2024 Masato Shimoda
ACG49-P04 Impact of sea surface temperature increase off the east coast of Japan due to extreme northward meandered Kuroshio Extension on snowfall in Tokyo -Case study of February 5, 2024- Yosei Yamaguchi
ACG49-P05 Impact of coastal warming induced by the Kuroshio large meander on extremely hot and humid events in the Kanto region, Japan Hidetaka Hirata