1.焚风效应当气流越过山脉时,在迎风坡上升冷却,大部分水分在山前降落。过山顶后,空气沿坡下降,按1℃/100米的干绝热增温率增温,相对湿度减小到15%,这种沿背风坡向下吹的干热风叫焚风。焚风吹来时,气温迅速增高,湿度显著减小,确有干热如焚的效应。在阿尔泰山、阿尔卑斯山、落基 1. Incineration effect When the air stream passes over the mountains, it cools on the windward slope, and most of the water falls in front of the mountains. After crossing the top of the mountain, the air descends along the slope, increasing the temperature by 1°C/100 metres of dry heat insulation and reducing the relative humidity to 15%. This kind of dry hot air blowing down the leeward slope is called Fog Wind. When the burning wind blows, the temperature rapidly increases, and the humidity decreases significantly, which does have the effect of dry heat. In the Altai Mountains, the Alps, and the Rocky Foundation