抄録
A global warming response, interannual variability, and their relationship have been examined on mid-winter storm-tracks, using a high-resolution atmospheric general circulation model. In the western Pacific, global warming makes the storm-track stronger and the westerly jet weaker, closely related to the leading mode of the storm-track variability. Much projection onto the leading mode is also realized for the global warming response in the Western Hemisphere; the storm-track is suppressed along with weaker zonal wind there at least in this model. It is therefore found that there are two types of interannual variability of storm-tracks (one for the western Pacific and the other for the Western Hemisphere), both mostly explain the global warming response.
