総説・解説等

Advent of the Earth Simulator enabled us to conduct simulations of the global atmosphere and ocean at unprecedentedly high resolutions. We optimised atmospheric and oceanic codes and built an atmophere-ocean coupled model on the Earth Simulator. Our high-resolution global atmospheric model is able to simulate regional atmospheric events such as typhoon, Baiu, and Foehn realistically. In the 50-year simulation using our high-resolution global ocean model, meander and eddies associated with strong currents such as the Kuroshio, equatorial counter and Agulhas currents are reproduced quite real...

平成24年度京都大学防災研究所一般研究集会(24K-08)「週間及び1か月予報における顕著現象の予測可能性」, 京都大学防災研究所連携研究棟大セミナー室, 2012/11/20-22

The operation of the Earth Simulator started in March, 2002, and 7 years have passed. For these years, the Earth Simulator has been used by not only researchers of JAMSTEC but also many researchers of the domestic and international institutions, and many remarkable results have been made. The Earth Simulator Center was established at the same time as the birth of the Earth Simulator. The researchers of the Earth Simulator Center have also developed new simulation technologies.The simulation is the only one method by which we can predict the future scientifically. Therefore, it has the important role in the science as well as the technology which can contribute to the life of the people, and has the important meaning in modeling the future of the human beings.

Numerical simulation is an efficient tool to investigate oceans and atomospher phenomena. It is desirable to use observation data in the simulation. Data assimilation is used to get proper initial and boundary conditions for forecasting and producing four-dimensional (time and space) data of weather and climate. In this study four-dimensional variational method was used to obtain initial conditions and surface fluxes for an ocean general circulation model which produces a dynamically consistent seasonally varying climate data set.