| 三峡水库对区域气候影响的数值模拟分析 |
| |
| 引用本文： | 马占山,张强,秦琰琰. 三峡水库对区域气候影响的数值模拟分析[J]. 长江流域资源与环境, 2010, 19(9) |
| |
| 作者姓名： | 马占山 张强 秦琰琰 |
| |
| 作者单位： | 国家气象中心,北京,100081;国家气候中心,北京,100081;国家海洋环境预报中心,北京,100081 |
| |
| 基金项目： | 国务院三峡办三峡工程环境保护补偿经费(SX2009-004); 中国气象局业务建设项目共同资助 |
| |
| 摘 要： | 利用中尺度数值模式MM5V3模拟了三峡水库建成后,由于下垫面变化对区域气候的影响,并探讨了三峡水库的建成是否为引发社会广泛关注的高温干旱和低温雨雪冰冻灾害等极端天气的主要因素。研究表明:三峡水库的建成对当地气温具有海洋性效应,库区附近春季温度变低,夏季在水库下游气温升高、上游则气温降低,而冬季则以升温为主;春季降水变化主要位于库区沿线的南部山区,增雨带和减雨带相间分布,夏季降水量在三峡库区中上游地区和附近的山区呈增加趋势,在库区下游及附近地区降水呈减少趋势,冬季降水量减少,主要集中在大坝附近地区到三峡(巫山)段;春季库区的相对湿度增加,幅度多在0.5%～1.0%,夏季相对湿度的影响也存在正负两种效应,大坝上游库区附近相对湿度增加,大坝下游地区相对湿度降低,冬季变幅不大;三峡水利工程不是干旱、低温雨雪冰冻等极端天气出现的主因,它对极端天气事件的影响并不明显。
|
| 关 键 词： | 三峡水库 区域气候影响 数值模拟 极端天气 |
NUMERICAL SIMULATION AND ANALYSIS OF THE EFFECT OF THREE GORGES RESERVOIR PROJECT ON THE REGIONAL CLIMATE CHANGE |
| |
| MA Zhan-shan,ZHANG Qiang,QIN Yan-yan. NUMERICAL SIMULATION AND ANALYSIS OF THE EFFECT OF THREE GORGES RESERVOIR PROJECT ON THE REGIONAL CLIMATE CHANGE[J]. Resources and Environment in the Yangtza Basin, 2010, 19(9) |
| |
| Authors: | MA Zhan-shan ZHANG Qiang QIN Yan-yan |
| |
| Affiliation: | MA Zhan-shan1,ZHANG Qiang2,QIN Yan-yan3(1.National Meteorological Center,Beijing 100081,China,2.National Climate Center,3.National Marine Environmental Forecasting Center,China) |
| |
| Abstract: | The effect on the regional climate caused by changes of underlying surface after the foundation of Three Gorges Reservoir was simulated by MM5V3,a mesoscale numerical model.Whether the foundation of Three Gorges Reservoir will be a main factor of severe drought and heat wave,as well as low temperature,consecutive cryogenic freezing rain and snow disasters,which are issues concerned intensively by society,was discussed.The results show that the foundation of Three Gorges Reservoir will have a sea-like effect... |
| |
| Keywords: | Three Gorges Reservoir regional climate effect numerical simulation extreme events of weather |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
