Japan Geoscience Union Meeting 2018

Presentation information

[JJ] Oral

P (Space and Planetary Sciences) » P-AE Astronomy & Extrasolar Bodies

[P-AE20] Exoplanet

Thu. May 24, 2018 9:00 AM - 10:30 AM 304 (3F International Conference Hall, Makuhari Messe)

convener:Masahiro Ikoma(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Norio Narita(University of Tokyo), Chairperson:Ikoma Masahiro(The University of Tokyo), Narita Norio(University of Tokyo)

9:30 AM - 9:45 AM

[PAE20-03] Habitable climate considering the spatially non-uniform distribution of water

★Invited Papers

*Takanori Kodama1 (1.Division of Climate System Research, Atmosphere and Ocean Research Institute, The Univ. of Tokyo)

Keywords:Habitability, Habitable planets, exoplanet, Habitable climate

Liquid water is thought to be necessary for the emergence and evolution of life on the surface of planets. The conditions for the stability of surface liquid water on a planet have often been discussed in terms of the habitable zone. The habitable zone is defined as the region around the central star where liquid water is stable on the planetary surface.

On most of the previous studies, they used one-dimensional climate models and estimated the habitable zone assuming water-rich planets, like the Earth. Recently, estimates using three-dimensional climate models have begun. Therefore, they focus on the spatially non-uniform distribution of water. Here, I review estimates of the habitable climate using three-dimensional climate model and discuss the perspective of habitable planets in the near future.