昆明市年降水量时空分布特征
Time-Space Distribution Features of Annual Precipitation in Kunming

作者: 李宝芬 :云南省水文水资源局昆明分局,云南 昆明; 和方昭 :云南省水文水资源局大理分局,云南 大理;

关键词: 昆明市降水量地区分布垂直变化年内年际变化Kunming City Participation Regional Distribution Vertical Variation Variation within a Year and between Years

摘要:
本文通过对昆明市年降水量的地区分布、垂直变化以及年内、年际、丰枯变化、多年变化趋势的分析,采用数理统计方法,并结合克里金空间插值方法(计算模型)勾绘了多年平均降水量等值线图,揭示了昆明市年降水量时空变化特征。研究结果表明,昆明地区年降水量时空分布不均,空间分布上具有明显的地带性,表现为山区多于坝区,坝区多于河谷和湖滨地带,年降水量与高程的变化呈线性关系的特点;时间分布上年内变化具有干湿季节明显,季节分配不均,雨量集中程度高,干湿起止时间基本一致的特点,多年降水量呈现减少的趋势,但其减少的显著性不明显,同时丰水年与枯水年交替出现,具有明显的周期性等特征,该成果是昆明市水资源研究和综合规划的基础,可为研究昆明市水资源变化规律、开发利用、防汛抗旱减灾提供参考。

Abstract: The paper reveals the law of space-time characteristic of precipitation in Kunming by analyzing the re-gional distribution, vertical variation, variation tendency, contours of multi-year average and so on. It indicates that the space-time distribution of precipitation of Kunming is uneven. In space, the precipita-tion has linear relation with elevation and decreases along with elevation decreasing. In time, the preci-pitation distribution is uneven in different seasons and concentrating; meanwhile, the annual precipita-tion has a non-significant decreasing tendency. The results and conclusions can provide reference and technical support for water resources planning and development as well as flood prevent and control.

文章引用: 李宝芬 , 和方昭 (2016) 昆明市年降水量时空分布特征。 水资源研究, 5, 182-189. doi: 10.12677/JWRR.2016.52024

参考文献

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