收藏本站
收藏 | 投稿 | 手机打开
二维码
手机客户端打开本文

Test Study on Flood Forecast by Merging Multi Precipitation Data

Yin Zhiyuan  Shen Tieyuan  Yang Fang  
【摘要】:Shuibuya control basin in upper reaches of Qingjiang River,Hubei Province was taken as the case. By combining grouping Z-I relation with ground meteorological rainfall station,rainfall estimation by radar was calibrated,and actual average surface rainfall in the basin was calculated.By combining genetic algorithm with neural network,the corrected AREM rainfall forecast model was established,to improve rainfall forecast accuracy by AREM. Finally,AREM rainfall forecast models before and after correction were input in Xin'an River hydrologic model for flood forecast test. The results showed that the corrected AREM rainfall forecast model could significantly improve forecast accuracy of accumulative rainfall,and decrease range of average relative error was more than 60%. Hourly rainfall forecast accuracy was improved somewhat,but there was certain difference from actual situation. Average deterministic coefficient of AREM flood forest test before and after correction was improved from -32. 60% to 64. 38%,and relative error of flood peak decreased from 39. 00% to 25. 04%. The improved effect of deterministic coefficient was better than relative error of flood peak,and whole flood forecast accuracy was improved somewhat.

知网文化
【相似文献】
中国期刊全文数据库 前20条
1 ;Variation Characteristics of Longest Continuous Rainfall Days in Shenyang in Recent 48 Years[J];Meteorological and Environmental Research;2011年02期
2 ;Wavelet analysis of rainfall variation in the Hebei Plain[J];Science in China(Series D:Earth Sciences);2005年12期
3 ;A method to quantitatively estimate rainfall rate above water surface based on different spectra shapes generated by rainfall[J];Chinese Journal of Acoustics;2011年03期
4 YU RuCong;YUAN WeiHua;LI Jian;;The asymmetry of rainfall process[J];Chinese Science Bulletin;2013年16期
5 吴北婴,吕达仁;REMOTE SENSING OF RAINFALL PARAMETERS BY LASER SCINTILLATION CORRELATION METHOD-COMPLETE EQUATION AND NUMERICAL SIMULATION[J];Advances in Atmospheric Sciences;1984年01期
6 ;Statistic forecast of typhoons going over the Chinese coasts[J];Journal of Geographical Sciences;2003年03期
7 卢乃锰;游然;张文建;;A FUSING TECHNIQUE WITH SATELLITE PRECIPITATION ESTIMATE AND RAINGAUGE DATA[J];Acta Meteorologica Sinica;2004年02期
8 ;Application of Ordinal Set Pair Analysis in Annual Rainfall Prediction of Liao River Basin[J];Meteorological and Environmental Research;2011年07期
9 吴北婴,吕达仁;REMOTE SENSING OF RAINFALL PARAMETERS BY LASER SCINTILLATION CORRELATION METHOD -NUMERICAL SIMULATION OF THE RETRIEVING[J];Advances in Atmospheric Sciences;1985年03期
10 ;Impacts of ENSO on rainfall of global land and China[J];Chinese Science Bulletin;1999年09期
11 Jacques GOLDER;Maminirina JOELSON;Marie-Christine NEEL;Liliana DI PIETRO;;A time fractional model to represent rainfall process[J];Water Science and Engineering;2014年01期
12 ;Analysis of an Unsuccessful Forecast for a Heavy Rainfall Event in Yingkou[J];Meteorological and Environmental Research;2011年04期
13 ;Interannual variability of Mascarene high and Australian high and their influences on summer rainfall over East Asia[J];Chinese Science Bulletin;2003年05期
14 ;Application of wind profiler data to rainfall analyses in Tazhong Oilfield region,Xinjiang,China[J];Journal of Arid Land;2012年04期
15 SHEN Xin-Yong;QING Tao;HUANG Wen-Yan;LI Xiao-Fan;;Effects of Vertical Wind Shear on the Pre-Summer Heavy Rainfall Budget:A Cloud-Resolving Modeling Study[J];Atmospheric and Oceanic Science Letters;2013年01期
16 马振骅,刘国胜,刘炜;PRINCIPAL STUDY OF THE FM RADAR FOR IMPROVING THE ACCURACY IN QUANTITATIVE RAINFALL RATE MEASUREMENT[J];Advances in Atmospheric Sciences;1985年03期
17 FENG Fan;DUAN WanSuo;;The role of constant optimal forcing in correcting forecast models[J];Science China(Earth Sciences);2013年03期
18 ;Large-scale low-frequency rainfall regimes and their transition modes in summertime over China[J];Chinese Science Bulletin;2006年11期
19 ;Diurnal variations of summer precipitation in Beijing[J];Chinese Science Bulletin;2008年12期
20 ;Inter-decadal variations of springtime rainfall over southern China mainland for 1979-2004 and its relationship with Eurasian snow[J];Science China(Earth Sciences);2012年02期
中国重要会议论文全文数据库 前5条
1 Annette Rinke;Klaus Dethloff;Moritz Mielke;;Climate and forecast mode simulations for Antarctica:Implications for temperature and wind-a case study for Davis station 2007[A];第26届中国气象学会年会冰冻圈与极地气象分会场论文集[C];2009年
2 ;Initialization with rainfall derived diabatic heating[A];全国优秀青年气象科技工作者学术研讨会论文集[C];2006年
3 XiaoJing Jia;Hai Lin;June-Yi Lee;Bin Wang;;Season-dependent forecast skill of the dominant atmospheric circulation patterns over the North Pacific and North American region[A];创新驱动发展 提高气象灾害防御能力——S6短期气候预测理论、方法与技术[C];2013年
4 贾小龙;陈丽娟;任福民;李崇银;;Impacts of the Madden-Julian Oscillation on Winter rainfall and Circulation in China[A];第七届全国优秀青年气象科技工作者学术研讨会论文集[C];2010年
5 徐邦琪;Tim Li;Lijun You;Jianyun Gao;Hong-Li Ren;;A Spatial-Temporal Projection Model for 10-30 Day Rainfall Forecast in South China[A];第八届全国优秀青年气象科技工作者学术研讨会论文汇编[C];2014年
中国知网广告投放
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978