CAJ | 학술논문

以滇中高原核心城市楚雄市为研究对象，分30个代表性气象站点1950—2009年降水时间序列，通过Mor-let小波变换等方法对其进行多时间尺度研究，探讨其演变趋势和变化规律。结果表明楚雄市降水序列均呈较明显的增加趋势，对于各种时间尺度的降水序列均表现出一致的降水变化规律，传统干旱区干湿季节差异性缩小；年降水相关性最好，最大6、24 h降水量相关性非常高，短历时（即最大1、6、24 h）降水与中长时间尺度（即月、年）降水相关性最差，短历时降水对中长时间尺度降水的影响较小，区域使用的数据资料序列小于由气象资料数据序列的长度限制，说明周期性的可靠度不高，还需要进一步根据更长的序列资料进行验证。
이전중고원핵심성시초웅시위연구대상，분30개대표성기상참점1950—2009년강수시간서렬，통과Mor-let소파변환등방법대기진행다시간척도연구，탐토기연변추세화변화규률。결과표명초웅시강수서렬균정교명현적증가추세，대우각충시간척도적강수서렬균표현출일치적강수변화규률，전통간한구간습계절차이성축소；년강수상관성최호，최대6、24 h강수량상관성비상고，단력시（즉최대1、6、24 h）강수여중장시간척도（즉월、년）강수상관성최차，단력시강수대중장시간척도강수적영향교소，구역사용적수거자료서렬소우유기상자료수거서렬적장도한제，설명주기성적가고도불고，환수요진일보근거경장적서렬자료진행험증。
In the core city of Chuxiong City,Yunnan plateau for the study,from 1950 to 2009 time series of precipitation points 30 rep-resentative meteorological stations,and other methods by Morlet wavelet transform its multi-time scale study to explore the evolution of trends and changes in the law. The results showed that:Chuxiong City,precipitation sequence showed obvious increasing trend for pre-cipitation sequence of various time scales have shown consistent rainfall variation,traditional wet and dry seasons arid zone differences narrowed;annual precipitation in the best correlation,the maximum 6h,24h precipitation correlation is very high,short duration (ie, the maximum 1h,6h,24h)precipitation and the long time scale (ie,month,year)precipitation relevance worst effects of short dura-tion rainfall for a long time -scale precipitation small sequence regions using data from meteorological data is less than the data se-quence length limit,indicating periodic reliability is not high,need to be further validated in accordance with a longer sequence data.