A derived flood frequency distribution for correlated rainfall intensity and duration

被引：89

作者：

Goel, NK

Kurothe, RS

Mathur, BS

Vogel, RM ^{[1
]}

机构：

[1] Tufts Univ, Dept Civil & Environm Engn, Medford, MA 02155 USA

[2] Univ Roorkee, Dept Hydrol, Roorkee 247667, Uttar Pradesh, India

[3] Cent Soil & Water Conservat Res & Training Inst, Res Ctr, Vasad 388306, Gujarat, India

来源：

JOURNAL OF HYDROLOGY | 2000年 / 228卷 / 1-2期

关键词：

1821; floods; 1833; hydroclimatology; 1860 runoff and streamflow; 1869 stochastic processes; 1854; precipitation;

D O I：

10.1016/S0022-1694(00)00145-1

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A derived hood frequency distribution (DFFD) combines a stochastic rainfall model with a deterministic rainfall-runoff model to obtain a physically based probability distribution of flood discharges. Previous DFFD studies have either assumed that rainfall intensity and duration an independent or negatively correlated. This study is more general than previous studies because it accommodates both positive and negative correlations between rainfall intensity and duration. Rainfall-runoff processes are modeled using a phi-index infiltration model and a geomorphoclimatic instantaneous unit hydrograph. Applications to four Indian watersheds and one US watershed demonstrates that (1) the correlation of rainfall intensity and duration has an important impact on the DFFD and (2) the DFFD provides a potentially useful alternative for estimating hood flow quantiles at ungaged sites. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：56 / 67

页数：12

共 17 条

[1] BIVARIATE EXPONENTIAL MODEL APPLIED TO INTENSITIES AND DURATIONS OF EXTREME RAINFALL [J].