scholarly journals Design flood estimation and utility of high‐resolution calibration data in small, heavily urbanised catchments

2018 ◽  
Vol 12 (2) ◽  
pp. e12464 ◽  
Author(s):  
G. Vesuviano ◽  
J.D. Miller
Keyword(s):  
High Resolution ◽  
Calibration Data ◽  
Design Flood ◽  
Flood Estimation ◽  
Urbanised Catchments

scholarly journals Feasibility and uncertainty of using conceptual rainfall-runoff models in design flood estimation

2015 ◽  
Vol 47 (4) ◽  
pp. 701-717 ◽  
Author(s):  
Qiang Zeng ◽  
Hua Chen ◽  
Chong-Yu Xu ◽  
Meng-Xuan Jie ◽  
Yu-Kun Hou
Keyword(s):  
Southern China ◽  
Calibration Data ◽  
Rainfall Runoff ◽  
Design Flood ◽  
Lumped Models ◽  
Flood Estimation ◽  
Generalized Likelihood Uncertainty Estimation ◽  
Necessary And Sufficient ◽  
Hbv Model ◽  
Resources Assessment

Hydrological models are developed for different purposes including flood forecasting, design flood estimation, water resources assessment, and impact study of climate change and land use change, etc. In this study, applicability and uncertainty of two deterministic lumped models, the Xinanjiang (XAJ) model and the Hydrologiska Byråns Vattenbalansavdelning (HBV) model, in design flood estimation are evaluated in a data rich catchment in southern China. Uncertainties of the estimated design flood caused by model equifinality and calibration data period are then assessed using the generalized likelihood uncertainty estimation (GLUE) framework. The results show that: (1) the XAJ model is likely to overestimate the design flood while HBV model underestimates the design flood; (2) the model parameter equifinality has significant impact on the design flood estimation results; (3) with the same length of calibration period, the results of design flood estimation are significantly influenced by which period of the data is used for model calibration; and (4) 15–20 years of calibration data are suggested to be necessary and sufficient for calibrating the two models in the study area.

Revisiting design flood estimation of Nam River Dam basin considering climate change

2016 ◽  
Vol 49 (8) ◽  
pp. 719-729
Author(s):  
Hyunseung Lee ◽  
Taesam Lee ◽  
Taewoong Park ◽  
Chanyoung Son
Keyword(s):  
Climate Change ◽  
Design Flood ◽  
Flood Estimation

scholarly journals Hydrological implications of spatial and altitudinal variation in temperature in the upper Indus basin

2004 ◽  
Vol 35 (3) ◽  
pp. 209-222 ◽  
Author(s):  
David Archer
Keyword(s):  
River Flow ◽  
Daily Rainfall ◽  
Indus Basin ◽  
Design Flood ◽  
Freezing Level ◽  
Correlation And Regression Analysis ◽  
Energy Inputs ◽  
Flood Estimation ◽  
Seasonal Correlation ◽  
Practical Implications

Runoff in the upper Indus in Pakistan is primarily fed by meltwater from snow and ice. Successful modelling of runoff thus depends on knowledge of the energy inputs for melt, and temperature provides a practical index. In this study, spatial and altitudinal variations in air temperature are investigated using correlation and regression analysis. The high levels of seasonal correlation between widely separated stations and with altitude suggest that conditions over a wide surrounding area and up to the freezing level may be inferred with reasonable reliability from climate stations at the valley level. Investigation of concurrent daily rainfall, temperature and runoff in extreme monsoon incursions shows that precipitation is accompanied by a sharp fall in temperature, reduced ablation and, most frequently, a decrease in river flow. Such temperature reductions have practical implications for short term flood forecasting and for design flood estimation.

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