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中文摘要：
以三峡大坝上游距离最近的庙河断面作为典型断面,利用2004—2011年实测水温资料,分析三峡水库近坝区水域水温垂向结构。分析结果表明：庙河断面从2006年开始,在水库底部一定高度内,每年4—6月份水体水温在垂向上均会出现一定的温差,但该区域还没有形成稳定温跃层;温差较大的区域均出现在水深75m以下,该区域均位于电站取水口高程（110m）以下,其水温对三峡水库下泄水流水温没有影响;三峡水库不存在深层低温水下泄问题。
英文摘要：
Miaohe section upstream closest to Three-Gorges Dam was taken as a typical cross-section.Based on the measured temperature data in 2004—2011,the vertical structure of water temperature in the vicinity area of Three Gorges Dam has been analyzed.The results show that it has not yet formed the thermocline in the vicinity area of the Three Gorges Dam;the regions of the large temperature gradient（75m）are located below the elevation of the power plant intake（110m）;the water in the region with large temperature gradient has not effected on the discharged flow from the Three Gorges Reservoir;at present there are no low-temperature flow in the bottom layer discharged from the Three Gorges Reservoir.
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