| 摘要: |
| 该文利用黔东南2010—2019年203个乡镇区域站和国家站16县（市）站逐日降水资料，对降水量、雨日、暴雨日、极端降水量进行时空对比分析。结果表明：乡镇区域站的降水量、雨日、暴雨与国家站相关性较好，通过α=0.01显著性检验，呈正相关及线性一致增加；全年降水量均呈单峰型、雨日呈平缓型、暴雨日数呈双峰型等分布，但量级均有一定差异，其中，雨日和暴雨日数的峰值期、开始期和结束期等不同。乡镇区域站的降水量主要以两条带状分布，并掺夹3个大值中心区，雨日和暴雨日数的集中区呈零散破碎型分布，极端降水量呈带状型分布；而国家站的降水量、雨日、暴雨日数、极端降水量等呈片状型分布。由于乡镇区域站点分布密集，相较于国家站以点带面，乡镇区域站能更好地反映出山地地形对降水分布的影响。 |
| 关键词: 乡镇区域站与国家站；降水；时空分布特征 |
| DOI： |
| 投稿时间：2021-01-25 |
| 基金项目:贵州省气象科技开放基金项目（〔2011〕05号）：黔东南优质茶叶形成的气候机理及栽培区域研究 |
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| Comparative Analysis of Precipitation Time and Space Between Regional Stations and National Stations in Southeast Guizhou in Recent 10 years |
| ZHOU Zhihui,GU Xin,CHEN Yang,TANG Hongzhong,ZHAO Jie |
| (Danzhai County Meteorological Bureau of Guizhou Province,Danzhai 557500 , China;Qiandongnan Prefecture Meteorological Bureau of Guizhou Province, Kaili 566000 ,China;Qiannan Prefecture Meteorological Bureau of Guizhou Province, Duyun 558000 ,China) |
| Abstract: |
| Based on the precipitation data of 203 township regional stations and 16 county (city) stations of national stations in southeastern Guizhou from 2010 to 2019, the temporal and spatial comparison analysis of precipitation, rainy day, rainstorm station times and extreme precipitation is carried out. The results show that the precipitation, rainy day and rainstorm of township regional stations have good correlation. With national stations α= 0.01 significance testing, it showed positive correlation and increasing trend;the annual precipitation presents a single peak type, a gentle rainy day and a bimodal rainstorm. There are certain differences in the magnitude of precipitation, the number of rainy days and rainstorms, and there are certain differences in the peak period, start period and end period of rainy day and rainstorm. The precipitation of regional stations in towns and townships is mainly distributed in two bands, with three large value centers. The rainy days and rainstorm concentration areas are distributed in a scattered and broken manner, and the extreme precipitation is distributed in bands, and the precipitation intensity is stronger than that of national stations. The precipitation, rainy day, rainstorm and extreme precipitation of the national station are distributed in flakes, and there are great differences in spatial distribution, dense areas and intensity. Therefore, the township regional stations can well reflect the distribution characteristics of precipitation caused by mountainous terrain. |
| Key words: township regional station and national station；precipitation；temporal and spatial distribution |
