Dynamics of the Earth, planets and exoplanets: Applications of numerical modelling to the geomagnetic field, planetary dynamos and planetary atmospheres

行星体的演化和动力学受热流、行星旋转时的流体运动和导电性足够高的电磁场的控制。我建议在行星流体动力学的三个主要领域开展研究，解决类地行星和巨行星的一系列基本问题：类地行星发电机的动力学（水星、地球和早期火星），聚焦于地球核心及其磁场在多个时间尺度上的演变;涡旋、纬向流的相互作用，以及木星、土星、天王星和海王星的深层发电机;以及太阳系外行星中纬向流和发电机作用的相互作用，重点是轨道相对靠近其母星星的彗星大小的天体。该研究计划涉及深层流动和对流的理论和数值模拟，以及全球磁场的产生。我们的持续目标是促进理解和解决地球和行星动力学中的当前科学问题。这导致了在各种期刊上发表的重要论文，如自然，自然地球科学，地球物理研究快报，天体物理学杂志等，这些论文促进了对太阳系几个行星的动态演化的理解，特别是水星，地球，木星，土星，天王星和海王星，以及系外行星。

The evolution and dynamics of planetary bodies are governed by heat flow, fluid motions in the presence of planetary rotation, and electromagnetism where the electrical conductivity is sufficiently high. I propose to carry out research in three main areas of planetary fluid dynamics, addressing a range of fundamental questions for terrestrial and giant planets: dynamics of the terrestrial planet dynamos (Mercury, Earth and early Mars), focussing on Earth’s core and evolution of its magnetic field over multiple timescales; interaction of vortices, zonal flows, and the deeper dynamos of Jupiter, Saturn, Uranus and Neptune; and interaction of zonal flow and dynamo action in extrasolar planets, with focus on Jupiter-sized bodies in orbits relatively close to their parent star. This research program involves theoretical and numerical modelling of deep flow and convection, and generation of global magnetic fields. Our ongoing goal is to advance understanding and solve current scientific problems in Earth and planetary dynamics. This has resulted in major papers published in a diversity of journals such as Nature, Nature Geoscience, Geophysical Research Letters, Astrophysical Journal, and others, that advance the understanding of the dynamical evolution of several of the solar system planets, particularly Mercury, Earth, Jupiter, Saturn, Uranus and Neptune, as well as exoplanets.