西高東低

プログレッシブ和英中辞典(第4版)

せいこうとうてい【西高東低】

西高東低の気圧配置
((have)) a distribution of atmospheric pressure in which the high pressure area is to the west and the low pressure area is to the east

西高東低型
an atmospheric pattern marked by a high pressure system to the west and a low pressure system to the east

出典　小学館「プログレッシブ和英中辞典(第4版)」