Atmospheric and Hydrospheric Sciences (A)
Session Sub-category Complex & General(CG)
Session ID A-CG43
Title Multi-scale ocean-atmosphere interaction in the tropics
Short Title Tropical ocean-atmosphere interaction
Main Convener Name Yukiko Imada
Affiliation Atmosphere and Ocean Research Institute, the University of Tokyo
Co-Convener 1 Name Ayako Seiki
Affiliation Japan Agency for Marine-Earth Science and Technology
Co-Convener 2 Name Takanori Horii
Affiliation Japan Agency for Marine-Earth Science and Technology
Co-Convener 3 Name Youichi Kamae
Affiliation Faculty of Life and Environmental Sciences, University of Tsukuba
Session Language
E
Scope
Tropical ocean-atmosphere interactions play an important role in shaping regional and global climate on a broad range of spatiotemporal scales. Since the 1980s, in-situ and satellite observations, reanalysis products, and advancements in climate modeling have facilitated the analysis of variability in the tropical ocean basins. The patterns of interest cover a wide range of timescales, from intraseasonal (e.g., MJO) to interannual (e.g., ENSO, IOD, and Atlantic Nino) to decadal (e.g., IPO). The linkages of these patterns with tropical climate variability over land (e.g., monsoons) and the extratropics (e.g., storm track) have also received much attention. Recent studies have revealed new aspects of tropical ocean-atmosphere interaction, such as salinity and its influence on tropical cyclone intensification. Others have highlighted the interaction among the tropical Pacific, Indian Ocean, and Atlantic basins, and its role in seasonal prediction of the Asian summer monsoon and decadal ocean variability such as the so-called global warming "hiatus". Long-term changes in the Pacific Walker circulation have received renewed attention because they are intricately linked to the fate of ENSO under global warming. Moreover, changes in the Walker circulation can alter the regional patterns of climate change and thereby modulate climate feedbacks and the sensitivity to radiative forcing. Climate, its variability, and its long-term change under global warming are shaped by a variety of processes that are mutually interrelated. To examine these challenging issues from various perspectives and foster understanding of the role of tropical ocean-atmosphere interaction in the climate system, this session offers a forum to discuss recent progress in observational, modeling and theoretical studies of multi-scale ocean-atmosphere interaction in the tropics.
Presentation Format Oral and Poster presentation
Invited Authors Malte F Stuecker (University of Hawaii at Manoa)
Takahito Kataoka (JAMSTEC Japan Agency for Marine-Earth Science and Technology)
Lei Zhang (South China Sea Institute of Oceanology)
Time Presentation No Title Presenter
Oral Presentation May 28 PM1
13:45 - 14:00 ACG43-01 Global climate mode resonance due to rapidly intensifying El Niño-Southern Oscillation Malte F Stuecker
14:00 - 14:15 ACG43-02 Precipitation anomaly enhances the development of El Niño/Southern Oscillation Takahito Kataoka
14:15 - 14:30 ACG43-03 La Niña Modoki and diversity of coastal El Niño events Tomoya Noguchi
14:30 - 14:45 ACG43-04 Different ENSO Teleconnections over East Asia in Early and Late Winter and Possible Mechanismes WEN CHEN
14:45 - 15:00 ACG43-05 Southward shift of westerly anomalies around El Niño decay related to high-frequency variabilities Tao Lian
15:00 - 15:15 ACG43-06 Predictability of East Asian Winter Monsoon and Its Dependence on Tropical and Extratropical SST Variability Reina Sakamoto
Oral Presentation May 28 PM2
15:30 - 15:45 ACG43-07 Strengthened Influence of Atlantic Niño on ENSO in a Warming Climate Lei Zhang
15:45 - 16:00 ACG43-08 The role of the tropical Atlantic in tropical Pacific climate variability Yingying Zhao
16:00 - 16:15 ACG43-09 Relationship between regional heavy rainfall in Japan and
interannual to decadal variability in the Pacific Ocean.
Tsuyoshi Nozue
16:15 - 16:30 ACG43-10 The role of oceanic waves in transmitting the effect of reduced heat release in the Kuroshio Extension region to El Niño-like warming Taiki Kobayashi
16:30 - 16:45 ACG43-11 Subsurface Ocean Conditions during Marine Heatwave Events in Southwest Sumatra Hanani Adiwira
16:45 - 17:00 ACG43-12 The effect of shallow mixed layer on the development of the boreal summer intraseasonal oscillation over the western North Pacific in 2024 Ayako Seiki
Presentation No Title Presenter
Poster Presentation May 28 PM3
ACG43-P01 Similarities and Differences in the Phase Transitions of Atlantic Niño and El Niño Ayumu Tsukada
ACG43-P02 Extratropical precursors to the Atlantic Zonal Mode and ENSO Ingo Richter
ACG43-P03 The Role of Vertical Mixing in the Development of El Niño Modoki Tomoki Tozuka
ACG43-P04 Interannual variations of simulated deep cycle turbulence in the eastern equatorial Pacific Rintaro NAKANO
ACG43-P05 Salinity-effect Strengthens ENSO Forced by Freshwater Flux Response to Global Warming in the Tropical Pacific Hai Zhi
ACG43-P06 Quantifying the teleconnections between East Asian winter precipitation and tropical sea surface temperatures using causal analysis TIANJIAO MA
ACG43-P07 Importance of the Western Boundary Component of the Subtropical Cells on Ocean Heat Content Variability associated with Tropical Pacific Decadal Variability Takeshi Anami
ACG43-P08 Role of ocean mixed layer and surface heat flux variations on the rapid decay of the 2019 positive Indian Ocean Dipole Takanori Horii
ACG43-P09 Quasi-biennial Variability Influence on Indian Ocean Equatorial Undercurrent KE HUANG
ACG43-P10 Surface air temperature adjustment over the warm ocean Bunmei Taguchi
ACG43-P11 Evolution of Spatiotemporally Contiguous Marine Heatwaves in the Maritime Continent Ardiansyah Desmont Puryajati