影响本调查区的天气系统十分复杂,而且随季节而变化。冬半年冷空气的活动,夏半年的热带气旋,台风以及四季对该区都产生影响的温带气旋都可能给该区带来灾害性天气。随着季节的变化太平洋高压的南北移动、西进东退更增加了天气变化的复杂性。 The weather system affecting this survey area is complex and varies with the seasons. Cold air activities in the winter half year, tropical cyclones in summer half year, typhoon and temperate cyclones that affect the area in all seasons may bring disastrous weather to the area. As the seasons change, the Pacific high pressure moves north and south, the easterning of the westward phase increases the complexity of weather changes.