River Flow Simulation Based on the HEC-RAS System

2017 ◽  
pp. 253-266
Author(s):  
Zdzisław Kowalczuk ◽  
Mateusz Świergal ◽  
Mirosław Wróblewski
Keyword(s):  
River Flow ◽  
Flow Simulation ◽  
Simulation Based ◽  
River Flow Simulation

River parametrisation of the JULES land surface model for improved runoff routing at the global scale.

2021 ◽  
Author(s):  
Aristeidis Koutroulis ◽  
Manolis Grillakis ◽  
Camilla Mathison ◽  
Eleanor Burke
Keyword(s):  
Spatial Resolution ◽  
Land Surface ◽  
River Flow ◽  
Land Surface Model ◽  
Flow Simulation ◽  
Surface Model ◽  
Routing Scheme ◽  
Basin Scale ◽  
River Flow Simulation ◽  
River Routing

<p>The JULES land surface model has a wide ranging application in studying different processes of the earth system including hydrological modeling [1]. Our aim is to tune the existing configuration of the global river routing scheme at 0.5<sup>o</sup> spatial resolution [2] and improve river flow simulation performance at finer temporal scales. To do so, we develop a factorial experiment of varying effective river velocity and meander coefficient, components of the Total Runoff Integrating Pathways (TRIP) river routing scheme. We test and adjust best performing configurations at the basin scale based on observations from GRDC 230 stations that exhibiting a variety of hydroclimatic and physiographic conditions. The analysis was focused on watersheds of near-natural conditions [3] to avoid potential influences of human management on river flow. The HydroATLAS database [4] was employed to identify basin scale descriptive hydro-environmental indicators that could be associated with the components of the TRIP. These indicators summarize hydrologic and physiographic characteristics of the drainage area of each flow gauge. For each basin we select the best performing set of TRIP parameters per basin resulting to the optimal efficiency of river flow simulation based on the Nash–Sutcliffe and Kling–Gupta efficiency metrics. We find that better performance is driven predominantly by characteristics related to the stream gradient and terrain slope. These indicators can serve as descriptors for extrapolating the adjustment of TRIP parameters for global land configurations at 0.5<sup>o</sup> spatial resolution using regression models.</p><p> </p><p>[1] Papadimitriou et al 2017, Hydrol. Earth Syst. Sci., 21, 4379–4401</p><p>[2] Falloon et al 2007. Hadley Centre Tech. Note 72, 42 pp.</p><p>[3] Fang Zhao et al 2017 Environ. Res. Lett. 12 075003</p><p>[4] Linke et al 2019, Scientific Data 6: 283.</p>

scholarly journals Modelling and numerical aspects in 2d river flow simulation

PAMM ◽  
2002 ◽  
Vol 1 (1) ◽  
pp. 438 ◽  
Author(s):  
M. Schulz ◽  
G. Steinebach
Keyword(s):  
River Flow ◽  
Flow Simulation ◽  
River Flow Simulation

Efficient implicit upwind schemes for river flow simulation with or without shocks

2006 ◽  
Author(s):  
J Burguete ◽  
P Brufau ◽  
P Garcia-Navarro ◽  
J Murillo
Keyword(s):  
River Flow ◽  
Flow Simulation ◽  
Upwind Schemes ◽  
River Flow Simulation

scholarly journals Improving River Flow Simulation Using a Coupled Surface-Groundwater Model for Integrated Water Resources Management

10.29007/6ft7 ◽  
2018 ◽  
Author(s):  
Salam Abbas ◽  
Yunqing Xuan ◽  
Ryan Bailey
Keyword(s):  
Water Resources Management ◽  
Land Surface ◽  
River Flow ◽  
Flow Simulation ◽  
Integrated Water Resources Management ◽  
Groundwater Model ◽  
River Catchment ◽  
Resources Management ◽  
Surface And Groundwater ◽  
River Flow Simulation

Accurate simulation of both land surface and groundwater hydrologic processes in river catchments is an important step for integrated water resources management, particularly for catchments where both surface water and groundwater resources are used conjunctively. In this paper, we present a study on a complex river catchment – the Dee River catchment in the United Kingdom using a coupled land surface model (SWAT) and groundwater model (MODFLOW) to improve the performances of both models otherwise used separately, hence serving the IWRM goals of optimizing conjunctive use of surface and groundwater. The model can also be used to evaluate the sensitivity of stream flows to changing climate, groundwater extraction, and land use alternations. Preliminary results show that the coupled model can improve river flow simulation especially baseflow simulation while significantly improving the overall water balance model simulations during periods of low flow.

Sign in / Sign up

Export Citation Format

Share Document