大渡河流域水电开发对区域气候的可能影响
投稿时间: 2015-11-06  最后修改时间: 2016-01-15  点此下载全文
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作者单位E-mail
李艳 重点实验室 yanlee@nuist.edu.cn 
张倩倩 南京信息工程大学  
中文摘要:利用中尺度天气预报模式WRF,从拓宽大渡河整个干流的水体分布与改变单一水库(瀑布沟水电站水库)的水体覆盖两个角度,对比分析下垫面水体变化对区域气候的可能影响。结果表明:整个干流水体变化和瀑布沟水库水体加宽后所产生的气候效应类似,均表现为对水体附近区域的局地影响。年平均气温在水体附近区域下降0.2-0.4℃,冬季平均气温小幅升高,春季、夏季和秋季的平均气温降低;冬季、春季和秋季的降水量变化不明显,年平均降水量、夏季降水量在河流两岸的有所减少;相对湿度在水体区域微弱增加,平均风速变化不大。
中文关键词:大渡河  水电站  区域气候效应
 
The impact of the land use change associated with the development of hydropower station in Daduhe River on regional climate change
Abstract:The impact of hydropower station in Daduhe River on regional climate change is examined trough comparison between the two simulations, control and land use change, using the Weather Research and Forecast (WRF) model. Two study areas, Daduhe River and Pubugou Hydropower Station is selected. The analysis indicates the climatic effects of the land use change associated with the hydropower station in the above two areas are weak on the local scale. The annual mean of surface temperature is decreased, which range is 0.2 to 0.4 ℃. In addition, the temperature is weak increased in winter and decreased in other seasons. There is no significant influence on precipitation in winter, spring, and autumn, but weak decreased in summer. The related humidity is weak increased surrounding the water body, and the wind speed is almost no change.
keywords:Daduhe River, hydropower station, land use change
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