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长白山脉贯串吉林省整个东部地区,主峰白云峰海拔2691米,是我国东北地区第一高峰。长白山天池位于高山之上,峻峰环绕,集水面积为21.41平方公里,平均水深204米,蓄水量20.04亿立方米。天池水常年不断经过高达68米的悬崖峭壁飞流直下,形成著名的天池瀑布。该处多年平均降水量约为1400毫米左右,年迳流深在350毫米以上。年际丰枯变化较小,一般年迳流变差系数在0.4以下;Cv 值最小在0.2左右,丰枯水年之比为1.5倍。
Changbai Mountain runs through the entire eastern part of Jilin Province. The peak of Baiyun Peak is 2691 meters above sea level, the highest peak in northeastern China. Changbaishan Tianchi is located in the mountains, surrounded by steep peaks, catchment area of 21.41 square kilometers, the average depth of 204 meters, storage capacity of 2.004 billion cubic meters. Tianchi water perennial after continuous as high as 68 meters cliffs fly, forming the famous Tianchi Falls. The multi-year average annual rainfall of about 1400 millimeters, the annual flow depth of 350 mm or more. The annual variation of Fengkuang is small, and the average annual variation coefficient of rheology is below 0.4; the minimum Cv value is about 0.2, and the annual abundance is 1.5 times.