Effective generation mechanisms of tropical instability waves as represented by high-resolution coupled atmosphere–ocean prediction experiments

T Toyoda, LS Urakawa, H Aiki, H Nakano, E Shindo… - Scientific Reports, 2023 - nature.com
Cusp-shaped fluctuations of the sea surface temperature (SST) front in the tropical Pacific,
now known as tropical instability waves (TIWs), were discovered by remote sensing in the …

Interpreting negative IOD events based on the transfer routes of wave energy in the upper ocean

Z Li, H Aiki - Journal of Physical Oceanography, 2024 - journals.ametsoc.org
The present study adopts an energy-based approach to interpret the negative phase of
Indian Ocean dipole (IOD) events. This is accomplished by diagnosing the output of hindcast …

Equatorial Dynamics Significantly Weakened the Southward Somali Current Circulation during 1997–98

G Chen - Journal of Physical Oceanography, 2024 - journals.ametsoc.org
Based on reanalysis data and numerical model, this study documented an unusually weak
southward Somali Current (SSC) circulation, an anticlockwise circulation in the western …

Energy circulation associated with interannual waves in the tropical-subtropical Pacific

B Wu, H Aiki, T Toyoda, T Ogata, M Nagura - Climate Dynamics, 2025 - Springer
The present study has investigated interannual variations in the tropical-subtropical Pacific
Ocean by applying Helmholtz decomposition to wave energy fluxes to indicate the direction …

[HTML][HTML] The energy flux of three-dimensional waves in the atmosphere: Exact expression for a basic model diagnosis with no equatorial gap

H Aiki, Y Fukutomi, Y Kanno, T Ogata… - Journal of the …, 2021 - journals.ametsoc.org
A model diagnosis for the energy flux of off-equatorial Rossby waves in the atmosphere has
previously been done using quasigeostrophic equations and is singular at the equator. The …

Wind stress curl as a driving force of annual waves in the upper ocean for interpreting energetics at all latitudes

K Ye, H Aiki - Progress in Earth and Planetary Science, 2024 - Springer
The dynamics of waves and eddies in the upper ocean plays an important role in the climate
variation of tropical and subtropical regions. Previous diagnoses for annual Rossby waves …

The 1994 Positive Indian Ocean Dipole event as investigated by the transfer routes of oceanic wave energy

Z Li, H Aiki - Journal of Physical Oceanography, 2022 - journals.ametsoc.org
The present study investigates the interannual variability of the tropical Indian Ocean (IO)
based on the transfer routes of wave energy in a set of 61-yr hindcast experiments using a …

[PDF][PDF] Investigation of tropical climate variations in the Indian Ocean based on the transfer routes of wave energy (波エネルギーの伝達経路に基づくインド洋の熱帯気候 …

Z LI - 2023 - nagoya.repo.nii.ac.jp
In traditional atmosphere-ocean research, when analyzing the role of large-scale waves, the
tropical-subtropical interactions cannot be examined on a unified metric. This is because the …