2008年12月20日 星期六

5-1 p.79翻譯

The Earth's Surface Features Affect Local Climates
地表特徵影響地方氣候
Heat is absorbed and realeased more slowly by water than by land. This difference creates land and sea breezes. As a result,the world's oceans and large lakes moderate the climates of nearby lands.
Various topographic features of the earth's surface create local and regional climatic conditions that differ from the general climate of a rigion. For example,mountains interrupt the flow of prevailing surface winds and the movement of storms. When moist air blowing inland from an ocean reaches a mountain range, it is forced upward. As it rises, it cools and expands and then loses most of its moisture as rain and snow on the windward slope of the mountain(the side from which the wind is blowing) .

陸地對熱的吸收以及釋放較水緩慢,這個差異造成海風以及陸風的形成,世界上的海洋及巨大的湖泊可以緩和鄰近地區的氣候。
地表多變的地形造成地區性的氣候相異於普遍性的氣候,例如:山脈會阻礙主要地形風的流動以及暴風雨的路徑。當潮溼的空氣由海面吹到路地上的山脈時,會向上提升,當山脈迎風面空氣上升時,會冷卻以及擴散,並以降雨或降雪的形式散失水分。

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