澎湖列岛主要天气气候特点及其成因分析

MAJOR CHARACTERISTICS OF SYNOPTIC CLIMATE IN PENGHU ISLANDS AND AN ANALYSIS OF ITS GENESIS

本文主要探讨澎湖列岛附近地理自然条件对该地区天气气候的影响。一、东北季风期间地形槽形成的雨影地带台湾地形槽是指冬半年在稳定的东北强风影响台湾省的情况下,在台湾山地背风面形成的气压槽(见图1)。这个气压槽是东北季风与台湾山地相互作用的产物,其强度与台湾岛迎风面附近海上之东北向风力呈正变关系,风越大,槽越明显.

Effects of the natural geographical conditions near Penghu Islands on the synoptic climate in this area are derived from rain shadow area formed in the geomorpholgical trough during the northeasterly,rainy season and the long-term stability of air column formed by the water systems in the Taiwan Strait.The effects of the mountainous areas in Taiwan Island on the strength of the westward movement of Pacific typhoons,the relationship between typhoon and Taiwan morphological low pressure influenced by the offshore high pressure and wind strength,the corresponding relationship between the cold and warm water systems and the tracks of typhoon in spring.