天然河流水温变化规律的原型观测研究

Field Measurement of Distribution of Water Temperature's Change Along a River

为了探求天然河流水温沿程变化规律以及水电站运行对河道水温的影响,作者选取某河干流及主要支流,依托现有水文水位站开展了水文水温同步原型观测.观测结果表明,该河干流水温变化从上游至下游每100km升温0.85℃,并且随高程每降低100m升温0.27℃.作者分析认为,水电站运行方式是影响下游河道水温变化的重要因素.

The simultaneous observations on hydrology and water temperature were carried out on a river in order to find out the law of water temperature＇s change along the river and the impact of the hydropower station. It shows that water temperature increase 1.01 ℃ every 100km and decrease 0. 309 with every 100m falling of attitude, and the operation of hydro power station is an important factor that affects of water temperature.