CAJ | 학술논문

洪峰流量是水利工程规划设计、工程建设和运营管理的重要依据,对水利工程的投资规模和安全运行有着重要的意义.西藏地区主要水文测站实测洪峰流量( Instantaneous Peak Flow ,简称:IPF)资料稀缺,而按水位计算整编的日径流资料( Mean Daily Flow ,简称:MDF)相对较多.通过构建实测资料时段的洪峰流量与对应日平均流量间的函数关系,基于长序列的日径流资料估算洪峰流量,延长洪峰流量序列,为设计洪水提供数据支撑.研究结果表明:(1)西藏地区主要水文测站 IPF~ MDF 函数关系稳定,利用这种函数关系由实测 MDF 推求的IPF 误差均在10%以内,且延长后的IPF序列频率分析计算结果更加合理;(2)对于实测MDF 序列缺乏的测站,可以通过气象资料驱动 HIM S系统水文模块( H ydro Informat ic Modeling Systerm)拓展 MDF 序列,在此基础上推求 IPF 序列.基于 HIM S系统水文模块对西藏三条典型河流(年楚河、拉萨河和尼洋河)的日径流序列进行了模拟,结果表明,模型对日径流整体过程与高流量值的模拟效果均良好.进而利用模型延长的MDF 序列以及构建的 IPF~ MDF 函数关系拓展了西藏三条典型河流2000年-2010年间的IPF 序列.
홍봉류량시수리공정규화설계、공정건설화운영관리적중요의거,대수리공정적투자규모화안전운행유착중요적의의.서장지구주요수문측참실측홍봉류량( Instantaneous Peak Flow ,간칭:IPF)자료희결,이안수위계산정편적일경류자료( Mean Daily Flow ,간칭:MDF)상대교다.통과구건실측자료시단적홍봉류량여대응일평균류량간적함수관계,기우장서렬적일경류자료고산홍봉류량,연장홍봉류량서렬,위설계홍수제공수거지탱.연구결과표명:(1)서장지구주요수문측참 IPF~ MDF 함수관계은정,이용저충함수관계유실측 MDF 추구적IPF 오차균재10%이내,차연장후적IPF서렬빈솔분석계산결과경가합리;(2)대우실측MDF 서렬결핍적측참,가이통과기상자료구동 HIM S계통수문모괴( H ydro Informat ic Modeling Systerm)탁전 MDF 서렬,재차기출상추구 IPF 서렬.기우 HIM S계통수문모괴대서장삼조전형하류(년초하、랍살하화니양하)적일경류서렬진행료모의,결과표명,모형대일경류정체과정여고류량치적모의효과균량호.진이이용모형연장적MDF 서렬이급구건적 IPF~ MDF 함수관계탁전료서장삼조전형하류2000년-2010년간적IPF 서렬.
@@@@The instantaneous peak flow ( IPF) is the important basis for the hydraulic design, construction, and management, and it also has important significance on the investment and safe operation of hydraulic projects. However, the IPF records in T ibet are general y scarce, w hile the mean daily flow ( MDF) records are relatively abundant. In this study, the IPF records are extended by analyzing the relationship betw een the corresponding IPF and MDF records and then estimating the IPF based on the long2series data of M DF, which can provide data support for the design flood. The results show that ( 1) the function relationship betw een IPF and M DF is stable for most of the hydrological stations in Tibet. The relative error betw een the estimated and observed IPF is less than 10% based on the above relationship, and the frequency analysis results using the extended IPF data series are more reasona2 ble than those using the measured IPF series;and ( 2) for the stations w ith limited data of measured MDF, the HIMS ( H ydro Infor2 matic Modeling System) model is used to extend the available MDF data series, and then the IPF data series are estimated. The HIMS model is applied to simulate the MDF data series in three representative rivers of Tibet:the Nianchu river, Lhasa river, and Niang river. The results show that the model has a good performance in both daily and peak flow simulations. Moreover, the IPF data series in the three representative rivers have been extended from 2000 to 2010 using the extended MDF data series obtained from the simulation results of H IMS and the function relationship betw een IPF and M DF.