局地気候モデルの開発について(2)

Abstract

Introducing various parameters on lateral boundary conditions, some numerical tests of long-term integrations of nested limited-area models are perfomed to investigate the possibility for high-resolution local climate models.The familiar assumption that a lower-resolution model is joined at the lateral boundary of a high-resolution limited-area model is taken and found to be a good approach, though one way interaction from the outer model to the inner one, excepting that difference of the phase velocity occurs between the two. The problem of the phase difference is related with how we choose the width of the region of the limited-area models to be used.