本文選題：唐山市區(qū) + 短歷時�。� 參考：《給水排水》2017年S1期

【摘要】：利用唐山市國家基本氣象站1964~2014年的逐分鐘降雨資料,通過模糊識別法對歷時60min、120min和180min的降雨過程進行統(tǒng)計分析,并分別采用芝加哥法和PC法推求唐山市區(qū)3個歷時,重現(xiàn)期2年以5min為單位時段的短歷時設(shè)計暴雨雨型,比較分析兩種方法所得結(jié)果的差異。結(jié)果表明:芝加哥法和PC法推求的唐山市區(qū)短歷時設(shè)計暴雨雨型均呈單峰型,這與模糊識別法統(tǒng)計的結(jié)果基本吻合;兩種方法得到的60min和120min設(shè)計暴雨雨型峰值基本處于整場降雨過程的1/3分位,而歷時180min的雨型峰值則均超前于整場降雨過程的1/3分位;芝加哥法和PC法推求短歷時設(shè)計暴雨雨型基本具有"單峰型、時間短、強度大"的特點,因此當(dāng)短歷時暴雨發(fā)生時,各相關(guān)部門應(yīng)積極配合,在第一時間做好城市排水防澇工作。
[Abstract]:Based on the hourly rainfall data of Tangshan National basic Weather Station from 1964 to 2014, the rainfall process of 60min ~ 120min and 180min was statistically analyzed by fuzzy recognition method, and the Chicago method and PC method were used to calculate the three durations of Tangshan urban area, respectively. The short duration design rainstorm rain pattern with 5min as the unit period for 2 years in the recurrence period was compared and analyzed with the difference of the results obtained by the two methods. The results show that the torrential rain patterns of the short-duration design in Tangshan urban area by Chicago method and PC method are both single-peak, which is basically consistent with the results of fuzzy recognition method. The 60min and 120min design rainstorm peak values obtained by the two methods are basically at 1 / 3 quartile of the whole rainfall process, while those of the duration 180min type peak are both ahead of the 1 / 3 quartile of the whole rainfall process. The short duration design rainstorm rain type obtained by Chicago and PC methods basically has the characteristics of "single peak type, short time and high intensity". Therefore, when the short duration rainstorm occurs, the relevant departments should cooperate actively. In the first time to do a good job in urban drainage and waterlogging work.
【作者單位】： 河北省氣候中心;遼寧省莊河市氣象局;石家莊市深澤縣氣象局;
【基金】：公益氣象行業(yè)專項(GYHY201506014) 河北省氣象局科研項目(16ky05)
【分類號】：TU992

【相似文獻】

相關(guān)碩士學(xué)位論文 前1條

1 牟金磊;北京市設(shè)計暴雨雨型分析[D];蘭州交通大學(xué);2011年

，

本文編號：1881800