JpGU-AGU Joint Meeting 2020

Presentation information

[E] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-OS Ocean Sciences & Ocean Environment

[A-OS25] Continental-Oceanic Mutual Interaction: Planetary scale Material Circulation

convener:Yosuke Alexandre Yamashiki(Earth & Planetary Water Resources Assessment Laboratory Graduate School of Advanced Integrated Studies in Human Survivability Kyoto University), Yukio Masumoto(Graduate School of Science, The University of Tokyo), Swadhin Behera(Climate Variation Predictability and Applicability Research Group, Application Laboratory, JAMSTEC, 3173-25 Showa-machi, Yokohama 236-0001), Takanori Sasaki(Department of Astronomy, Kyoto University)

[AOS25-P08] Toward a global SPH simulation of an icy moon with internal ocean

*keiya murashima1, Takanori Sasaki1, Natsuki Hosono2, Yosuke Alexandre Yamashiki1 (1.Kyoto University, 2.Japan Agency for Marine-Earth Science and Technology)

Keywords:inner ocean, SPH

There are some traces of existence of internal ocean in some icy moons, such as a plumes of vapor of Europa and Enceladus. Since liquid water would be essential for the origin of life, it is important to understand the development of inner sea, especially the temperature distribution/evolution inside the icy moons. Thus, we aim to simulating the development of an internal ocean of an icy moon by 3-dimensional numerical fluid calculations using Smoothed Particle Hydrodynamics (SPH) method.

It is considered that the balance between the tidal heating caused by tidal acceleration and radiative cooling sustains liquid water beneath the surface of an icy moon. So, we added viscosity, conductive heat transfer and radiative cooling terms into the governing equations of SPH method. In addition, we take latent heat of phase transition into consideration. We will report the progress of our project toward a global SPH simulation of the internal ocean.