地球与行星物理论评（中英文）2025，Vol.56Issue(4)：388-406,19.DOI:10.19975/j.dqyxx.2024-065
地球、火星、泰坦和金星极地涡旋的多尺度比较
A multi-scale comparison of polar vortices on Earth,Mars,Titan,and Venus
摘要
Abstract
Although previous studies have analyzed the unique structural characteristics of the polar vortices on Earth,Venus,Mars,and Titan,the understanding of the polar vortices on Venus and Titan is primarily based on small-scale case studies due to the limited resolution and coverage of observational data.Conducting a detailed comparison of the polar vortex characteristics between the major terrestrial planets and Titan in the solar system is more challenging.In order to more finely compare the polar vortex characteristics of the main terrestrial planets in the solar system with Titan,we have achieved the optimal estimation of the polar vortices of Venus and Titan un-der existing conditions based on the advanced VCD2.3 and TitanWRF model.At the same time,combining ERA5 and EMARS databases,a detailed spatiotemporal comparison of polar vortex characteristics between terrestrial planets with atmospheres in the solar system and the most Earth-like Titan satellite was conducted for the first time.Here,we demonstrate that:(1)The circulation characteristics of Mars above the 1 mbar level are very similar to those at 1000 mbar in the lower layers of Titan,with seasonal variations of the same height.(2)In contrast to the vortex structure that is stably maintained in the lead direction in the polar regions of Mars and Earth during the winter,the time of occurrence of the peak vortex intensity at Titan and Venus is gradually shifted forward with in-creasing altitude.(3)When Venus undergoes vortex instability drift,the polar vortex at an altitude of 1 mbar breaks up into banded structures,a phenomenon that closely resembles the twisting deformation of PV structures during weak stratospheric polar vortex events on Earth.关键词
极地涡旋/位涡/比较行星学/大气环流Key words
polar vortex/potential vorticity/comparative planetology/atmospheric circulation分类
地球科学引用本文复制引用
盛峥,吴刚耀,张杰,杨晓华..地球、火星、泰坦和金星极地涡旋的多尺度比较[J].地球与行星物理论评（中英文）,2025,56(4):388-406,19.基金项目
The study was supported by the National Natural Science Foundation of China(Grant No.42275060)and Science Foundation for Indigenous Innovation of National University of Defense Technology(Grant No.24-ZZCX-JDZ-45). （Grant No.42275060）
