空气温度高于地面或海面温度的气团。在移动中把热量不断传给地面或海面,使所经地区变暖而本身逐渐变冷。影响中国的暖气团主要来自热带海洋,水汽丰沛,若遇北方冷气团,暖气团遇冷抬升,则往往凝云致雨,造成大范围的天气变化。
锋或锋面是指冷暖气团之间的过度带。
A front is a transition area between the cold and warm air masses.
通过对典型高温日影响因素的分析发现:特殊地形下的焚风效应、中低空暖气团的维持以及城市化效应,均对高温强度有加剧作用。
The results indicated that foehn effect in special topography, the maintenance of warm air mass in low-altitude and the urbanization effect had strengthened high-temperature.
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