February 20, 2025
RIKEN
Keio University
A joint research team, consisting of Team Leader Takemasa Miyoshi (also a principal investigator at the Miyoshi Predictive Science Laboratory, RIKEN Pioneering Research) and Special Postdoctoral Researcher Zhengyu Liang of the Data Assimilation Research Team at the RIKEN Center for Computational Science, and Professor Norihiko Sugimoto of the Department of Physics, Faculty of Law, Keio University, has discovered a new kinematic mechanism by applying an analysis method using the Bred Vector energy equation to the Venusian atmosphere for the first time.
This research is expected to open up the possibility of applying this method to the atmospheres of various other planets, contributing to the elucidation of the kinematic mechanisms of planetary atmospheres.
Venus is often called Earth's "sister planet" due to their similar size and mass, but its atmospheric environment is markedly different from Earth's. Understanding the Venusian atmosphere is important as it also leads to a better understanding of Earth's atmosphere. In this study, the joint research team simulated the Venusian atmosphere using a computer and, by employing the Bred Vector method which uses the difference between two simulations, clarified the mechanism and efficiency of the conversion from potential energy to kinetic energy in the Venusian atmosphere, which is related to phenomena such as the generation and development of low-pressure systems.
This research was published in the online edition of the scientific journal Geophysical Research Letters on February 19 (JST).
Please see below for the full press release.