Atmospheric Processes and Their Impact on Climate at the joint Jp-AGU Meeting, Chiba, Japan, 27 May 2026

We would like to invite you to submit an abstract to the session titled “Atmospheric Processes (Stratosphere and Troposphere) and Their Impact on Climate” at the joint JpGU-AGU Meeting 2026 (https://www.jpgu.org/meeting_e2026/) in Chiba, Japan on 27 May 2026.  The oral session will feature an invited talk by Professor Kevin Hamilton from the University of Hawaii, Kohei Yoshida from Meteorological Research Institute and Chihiro Matsukawa from Japan Meteorological Agency. We look forward to seeing you in Chiba, Japan!

Abstract submission deadlines:

Early Deadline: 23:59 Thu. 06 February [JST]

Final Deadline: 17:00 Tue. 18 February [JST]

The following is an overview of the session:

https://www.jpgu.org/meeting_e2026/sessionlist_en/detail/A-AS06.html

Session ID: A-AS06

Title: Atmospheric (Stratosphere-troposphere) Processes And their Role in Climate

Scope:

The dynamical, radiative, and chemical processes involved in stratosphere-troposphere (ST) interactions are essential for understanding climate variability and change. Studies utilizing observational data and high-resolution models have been demonstrating that stratospheric processes affect various tropospheric phenomena. Increasing attempts have recently been made to understand ST interaction processes, improve subseasonal-to-seasonal predictions of ST coupled variations, and develop statistics-/informatics-based studies. Other notable studies include those that treat the stratosphere and mesosphere integrally as the „middle atmosphere“ and that deal with the „whole atmosphere“ extending from the surface (land and ocean) to the upper atmosphere (the thermosphere and ionosphere). Due to the above background, SPARC (Stratosphere-troposphere Processes And their Role in Climate) changed its name to APARC (Atmospheric Processes and their Role in Climate) in 2024. In this session, we welcome studies focusing on various ST processes as well as those extending the target upward to the mesosphere and upper atmosphere and/or downward to the surface. Inheriting the significance of the SPARC sessions held at past JpGU meetings, this session aims to enhance the development of this field in close coordination with the atmospheric chemistry session.

Conveners:

Yayoi Harada (Meteorological Research Institute)

Kazuaki Nishii (Graduate School of Bioresources, Mie University)

Haruka Okui (Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

Shunsuke Noguchi (Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University)

Rei Ueyama (NASA Ames Research Center)