Atmospheric and Hydrospheric Sciences (A)
Session Sub-category Atmospheric Sciences, Meteorology & Atmospheric Environment(AS)
Session ID A-AS06
Title Atmospheric (Stratosphere-troposphere) Processes And their Role in Climate
Short Title APARC (SPARC)
Main Convener Name Shunsuke Noguchi
Affiliation Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University
Co-Convener 1 Name Yayoi Harada
Affiliation Meteorological Research Institute
Co-Convener 2 Name Kazuaki Nishii
Affiliation Graduate School of Bioresources, Mie University
Co-Convener 3 Name Nawo Eguchi
Affiliation Research Institute for Applied Mechanics, Kyushu University
Session Language 
E
Scope 
The dynamical, radiative, and chemical processes involved in the stratosphere-troposphere (ST) interactions are essential for understanding the formation and change/variations of the climate. Both observational data and high-resolution models have now clearly demonstrated that stratospheric processes can affect various tropospheric phenomena.
Recent research directions include, but are not limited to, better understanding of ST interaction processes, verification and development of subseasonal-to-seasonal predictions of ST coupled variations, and development of statistics-/informatics-based studies. Studies are also notable 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 division aims to enhance the development of this field in close cooperation with the atmospheric chemistry session.
Presentation Format Oral and Poster presentation
Invited Authors Dai Koshin (High Altitude Observatory)
Patrick Martineau (Japan Agency for Marine-Earth Science and Technology)
Keiichi Ishioka (Graduate School of Science, Kyoto University)
Time Presentation No Title Presenter
Oral Presentation May 27 AM1
9:00 - 9:20 AAS06-01 The JAGUAR-DAS whole neutral atmosphere reanalysis: JAWARA Dai Koshin
9:20 - 9:40 AAS06-02 The APARC Reanalysis Intercomparison Project (A-RIP) and the Reanalysis Intercomparison Dataset (RID): Advancing Reanalysis Comparisons Patrick Martineau
9:40 - 9:55 AAS06-03 Stratospheric responses to the Hunga Tonga-Hunga Ha’apai eruption in multiple reanalysis data sets Masatomo Fujiwara
9:55 - 10:10 AAS06-04 Chemical and radiative impacts of the 2022 Hunga Tonga-Hunga Ha'apai eruption: a chemistry-climate model simulation Kengo Sudo
10:10 - 10:30 AAS06-05 The development of a three-dimensional spectral mechanistic circulation model and its application to the study of atmospheric dynamics Keiichi Ishioka
Oral Presentation May 27 AM2
10:45 - 11:00 AAS06-06 Common excitation and/or amplification mechanisms of Rossby and Rossby-gravity normal modes revealed by long-term reanalysis data for the whole middle atmosphere Hiroto Sekido
11:00 - 11:15 AAS06-07 A study on characteristics of gravity waves based on a whole neutral atmosphere GW-permitting GCM Yamamoto Soichiro
11:15 - 11:30 AAS06-08 A Convolutional Neural Network for the Detection of Gravity Waves in Satellite Observations and Numerical Simulations Haruka Okui
11:30 - 11:45 AAS06-09 20 Years of Atmospheric Temperature, Water Vapor, and Cloud Products Derived from Multiple Satellite Hyperspectral Remote Sensors Xu Liu
11:45 - 12:00 AAS06-10 On gravity wave activities and temperature-depleted layer obtained from high-altitude radiosonde observation in July 2024 Takenari Kinoshita
12:00 - 12:15 AAS06-11 Revisiting the cross-equatorial symmetry in QBO jets Takatoshi Sakazaki
Presentation No Title Presenter
Poster Presentation May 27 PM3
AAS06-P01 Improvement and Issues in Representation of Stratospheric Field in JRA-3Q Reanalysis Yayoi Harada
AAS06-P02 Representation of ozone quasi-biennial oscillation (QBO) in JRA-3Q Hiroaki Naoe
AAS06-P03 Influence of the Quasi-Biennial Oscillation on the Spatial Structure of the Wintertime Arctic Oscillation Qingyu Cai
AAS06-P04 What type of QBO-related variation induces polar vortex and surface changes? Kohei Yoshida
AAS06-P05 Connection Between Atlantic Blocking Events Characteristics and Sudden Stratospheric Warming Using ERA5 Reanalysis Data Takayuki Hattori
AAS06-P06 Two leading modes in the evolution of major sudden stratospheric warmings and their distinctive surface influence Lei Song
AAS06-P07 Future Changes in the Frequency of Sudden Stratospheric Warmings: Variability Depending on Sea Surface Temperature Conditions Shunsuke Noguchi
AAS06-P08 Long-term variations in surface pressure tides Kazuki Sugahara
AAS06-P09 Impacts of the Arctic sea-ice loss on the middle atmosphere Shosuke Mori
AAS06-P10 Deepened and Eastward-Shift of the Amundsen Sea Low Contributes to Recent Antarctic Peninsula Mass Accumulation Zhen Li
AAS06-P11 Analysis of layered structures observed in the tropical to subtropical troposphere Kuta Muramoto
AAS06-P12 Mechanisms of early and late summer precipitation in Southwest China: dynamic and thermodynamic processes Xiaoting Sun