A03-K108 Long-term modulation of the Kuroshio and Kuroshio Extension system and its impact on the Pacific warming pattern
A03-K108
Principal Investigator
| TOZUKA Tomoki | U. Tokyo |
This research project aims to elucidate the long-term variability mechanisms of the Kuroshio and Kuroshio Extension system. Furthermore, by investigating how changes in the Kuroshio and Kuroshio Extension influence the Pacific warming pattern, this study seeks to clarify the role of this system in the global climate system.
1. Long-term variability of Kuroshio large meanders
Using a high-resolution coupled ocean-atmosphere model, we will analyze the characteristics of prolonged large meander events. Additionally, we will examine whether such long-lasting Kuroshio large meanders, as observed in recent years, are likely to occur more frequently under global warming.
2. Vertical current associated with mesoscale eddies in the Kuroshio Extension region and its impact on long-term variability
Using a generalized Ekman theory applicable to mesoscale phenomena, we will evaluate vertical heat transport associated with mesoscale eddies. Furthermore, we will investigate how this vertical eddy heat transport influences the decadal-scale variability of oceanic fronts in the Kuroshio Extension.
3. Impact of the Kuroshio Extension region on the Pacific warming pattern
We will examine how changes in heat release from the Kuroshio Extension region influence the warming pattern in the tropical Pacific. This will be achieved through sensitivity experiments using a regional ocean model and an analysis of global warming experiments conducted with climate models.
