CAJ | 학술논문

采用小波分析和滑动t检验等方法，对安阳市1961-2011年的降水资料进行分析研究，结果表明：1）安阳各站降水量变化趋势基本一致。夏季降水量和年降水量具有相同的变化趋势和位相，全市暴雨总日数变化与夏季降水量变化较一致，月降水量相对变率与月降水量百分比率在年内分布位相相反，最长连续有降水日数与最长连续无降水日数的年际变化基本上处于反相。2）安阳市降水日变化呈双峰双谷型，月降水量以7-8月为中心呈正态分布。3）春、秋、冬三季有效降水日数与降水量相关性较好，夏季降水量与暴雨日相关密切，暴雨对夏季降水量贡献显著。4）降水突变不明显。5）季、年降水量和降水日数存在多时间尺度特征，大尺度的周期变化嵌套着小民度的周期变化，不同的时间尺度对应的降水结构或日数增减不同。安阳市年降水量第1主周期为26a，年平均有效降水日数主周期为21a，暴雨日数主周期是19a，最长连续有（无）降水日数主周期是21a。
채용소파분석화활동t검험등방법，대안양시1961-2011년적강수자료진행분석연구，결과표명：1）안양각참강수량변화추세기본일치。하계강수량화년강수량구유상동적변화추세화위상，전시폭우총일수변화여하계강수량변화교일치，월강수량상대변솔여월강수량백분비솔재년내분포위상상반，최장련속유강수일수여최장련속무강수일수적년제변화기본상처우반상。2）안양시강수일변화정쌍봉쌍곡형，월강수량이7-8월위중심정정태분포。3）춘、추、동삼계유효강수일수여강수량상관성교호，하계강수량여폭우일상관밀절，폭우대하계강수량공헌현저。4）강수돌변불명현。5）계、년강수량화강수일수존재다시간척도특정，대척도적주기변화감투착소민도적주기변화，불동적시간척도대응적강수결구혹일수증감불동。안양시년강수량제1주주기위26a，년평균유효강수일수주주기위21a，폭우일수주주기시19a，최장련속유（무）강수일수주주기시21a。
Using the method such as wavelet analysis and moving t test, Anyang city precipitation data from 1961 to 2011were analyzed. The results are as follows. 1) Anyang each station precipitation trends are consistent. Summer precipitation and the annual precipitation have the same change tendency and phase; the rainstorm general days change with summer rainfall change are more consistent; the phase of the relative variability and percentage of monthly precipitation is opposite in the annual distribution; the longest continuous precipitation days and no precipitation days change basically in reversed-phase. 2) The Anyang city rainfall diurnal variation appears two peaks and two valleys; the monthly precipitation takes July and August as center and shows normal distribution. 3) The effective precipitation days and precipitation are well correlated in spring, autumn and winter; summer precipitation and rainstorm day are closely related, rainstorm has significant contribution to summer precipitation. 4) The abrupt change of precipitation is not obvious. 5) The quarterly, annual precipitation and precipitation days present mul-tiple time scales characteristics; the large scale periodic changes are nested with small scale periodic changes; in different time scales, the corresponding precipitation structure or days change are different. The first main period of Anyang city annual precipitation is 26 a, the main period of the annual average effective precipitation days is 21 a, the main period of rainstorm days is 19 a, the main period of the lon-gest continuous (no) precipitation days is 21 a.