青藏高原积雪变化及其对中国水资源系统影响研究进展

发布时间：2018-02-24 11:34

本文关键词： 青藏高原气候变化积雪水资源降水旱涝　出处：《高原气象》2017年05期 　论文类型：期刊论文

【摘要】：回顾了青藏高原(下称高原)积雪变化及其对中国水资源系统影响研究进展,探讨了开展高原积雪异常对中国水资源系统影响研究存在的不足和未来趋势。高原积雪分布极不均匀,呈四周山区多、腹地少,两侧多、中间少的空间分布特征。高原东部积雪变化最显著且主导了整个高原积雪的年际变化,因此该地区积雪异常更值得关注。自20世纪60年代以来高原积雪总体呈缓慢增加趋势,21世纪初期春季和冬季积雪略有减少。目前,关于高原积雪变化对我国水资源系统影响的研究主要集中在高原积雪异常对降水和旱涝影响及其预测指示性研究两方面。高原积雪主要通过季风影响我国的降水时空分布,进而影响水资源系统。高原积雪异常对我国降水影响大,且范围广,可作为降水预测的一个重要信号,同时其对我国旱涝分布具有重要影响,并且对旱涝预测具有指示意义。
[Abstract]:In this paper, the research progress of snow cover change and its influence on water resources system in China is reviewed. The deficiency and future trend of the research on the influence of plateau snow cover anomaly on water resources system in China are discussed. The snow cover distribution in the plateau is very uneven, with more mountains around, less hinterland and more on both sides. The variation of snow cover in the eastern part of the plateau is the most significant and dominates the interannual variation of snow cover over the whole plateau. Therefore, the abnormal snow cover in this area deserves more attention. Since 1960s, there has been a slow increase in snow cover on the plateau, and there has been a slight decrease in snow cover in the early spring and winter of the 21st century. The study on the influence of the snow cover change on the water resources system in China is mainly focused on two aspects: the influence of the snow cover anomaly on precipitation, drought and flood over the plateau and its predictive indicator. The snow cover over the plateau mainly affects the temporal and spatial distribution of precipitation in China through the monsoon. It can be used as an important signal of precipitation prediction, and it also has an important influence on the distribution of drought and flood in China, and has an instructive significance for the prediction of drought and flood.
【作者单位】：中国气象局成都高原气象研究所/高原与盆地暴雨旱涝灾害四川省重点实验室;
【基金】：国家自然科学基金项目(41375116) 中国气象局成都高原气象研究所开放基金项目(BROP201537,BROP201443,BROP201303)
【分类号】：P426.635;TV213.4

【相似文献】