A large-scale horizontal routing model to be coupled to land surf ace
                        parametrization schemes

Lohmann, Dag; Nolte-Holube, Ralph; Raschke, E.

doi:10.3402/tellusa.v48i5.12200

Cited by 393 publications

(177 citation statements)

References 17 publications

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“…The VIC simulated runoff and baseflow were combined and routed, as in Lohmann et al (1996), to obtain daily streamflows for locations near the bottom of seven California river basins (Fig. 1).…”

Section: Methodsmentioning

confidence: 99%

Potential increase in floods in California’s Sierra Nevada under future climate projections

et al. 2011

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California's mountainous topography, exposure to occasional heavily moisture-laden storm systems, and varied communities and infrastructures in low lying areas make it highly vulnerable to floods. An important question facing the state-in terms of protecting the public and formulating water management responses to climate change-is "how might future climate changes affect flood characteristics in California?" To help address this, we simulate floods on the western slopes of the Sierra Nevada Mountains, the state's primary catchment, based on downscaled daily precipitation and temperature projections from three General Circulation Models (GCMs). These climate projections are fed into the Variable Infiltration Capacity (VIC) hydrologic model, and the VIC-simulated streamflows and hydrologic conditions, from historical and from projected climate change runs, allow us to evaluate possible changes in annual maximum 3-day flood magnitudes and frequencies of floods. By the end of the 21st Century, all projections yield larger-than-historical floods, for both the Northern Sierra Nevada (NSN) and for the Southern Sierra Nevada (SSN). The increases in flood magnitude are statistically significant (at p<=0.01) for all the three GCMs in the period 2051-2099. The frequency of flood events above selected historical thresholds also increases under projections from CNRM CM3 and NCAR PCM1 climate models, while under the third scenario, GFDL CM2.1, frequencies remain constant or decline slightly, owing to an overall drying trend.

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Section: Methodsmentioning

confidence: 99%

Potential increase in floods in California’s Sierra Nevada under future climate projections

et al. 2011

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“…Second, the modular structure of the mizuRoute tool offers the flexibility to configure multiple routing schemes. The current version of mizuRoute includes two different river routing schemes: (1) kinematic wave tracking (KWT) routing and (2) impulse response function -unit-hydrograph (IRF-UH) routing, mimicking the Lohmann et al (1996) model. This flexibility offers new capabilities not present in existing routing models.…”

Section: Runoff Routing In Mizuroutementioning

confidence: 99%

“…The IRF-UH method mimics the river routing model of Lohmann et al (1996), which has been used to route flows from gridded land surface models such as the Variable Infiltration Capacity model (VIC; Liang et al, 1994). The only difference between the current tool and the Lohmann routing tool is the way in which the river network is defined.…”

Section: Impulse Response Function -Unit Hydrograph (Irf-uh)mentioning

confidence: 99%

“…For the IRF-UH method, the determination of celerity and diffusivity with Eq. (B8) requires information on flow and channel geometry, so for simplicity we follow Lohmann et al (1996) and treat celerity and diffusivity as parameters. For both schemes, parameter estimation methods need to be developed to determine appropriate values for large-scale applications.…”

Section: Conus-wide Mizuroute Simulationsmentioning

confidence: 99%

“…For this reason, we focus on an inter-comparison between the two channel routing schemes or two river network definitions. The performance of the IRF-UH approach in routing flows compared to observed flows has been discussed by Lohmann et al (1996).…”

Section: Conus-wide Mizuroute Simulationsmentioning

confidence: 99%

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mizuRoute version 1: a river network routing tool for a continental domain water resources applications

et al. 2016

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Abstract. This paper describes the first version of a standalone runoff routing tool, mizuRoute. The mizuRoute tool post-processes runoff outputs from any distributed hydrologic model or land surface model to produce spatially distributed streamflow at various spatial scales from headwater basins to continental-wide river systems. The tool can utilize both traditional grid-based river network and vector-based river network data. Both types of river network include river segment lines and the associated drainage basin polygons, but the vector-based river network can represent finer-scale river lines than the grid-based network. Streamflow estimates at any desired location in the river network can be easily extracted from the output of mizuRoute. The routing process is simulated as two separate steps. First, hillslope routing is performed with a gamma-distribution-based unit-hydrograph to transport runoff from a hillslope to a catchment outlet. The second step is river channel routing, which is performed with one of two routing scheme options: (1) a kinematic wave tracking (KWT) routing procedure; and (2) an impulse response function -unit-hydrograph (IRF-UH) routing procedure. The mizuRoute tool also includes scripts (python, NetCDF operators) to pre-process spatial river network data. This paper demonstrates mizuRoute's capabilities to produce spatially distributed streamflow simulations based on river networks from the United States Geological Survey (USGS) Geospatial Fabric (GF) data set in which over 54 000 river segments and their contributing areas are mapped across the contiguous United States (CONUS). A brief analysis of model parameter sensitivity is also provided. The mizuRoute tool can assist model-based water resources assessments including studies of the impacts of climate change on streamflow.

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Real‐time global flood estimation using satellite‐based precipitation and a coupled land surface and routing model

Adler

Tian

et al. 2014

Water Resources Research

293

208

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A widely used land surface model, the Variable Infiltration Capacity (VIC) model, is coupled with a newly developed hierarchical dominant river tracing-based runoff-routing model to form the Dominant river tracing-Routing Integrated with VIC Environment (DRIVE) model, which serves as the new core of the real-time Global Flood Monitoring System (GFMS). The GFMS uses real-time satellite-based precipitation to derive flood monitoring parameters for the latitude band 50 N-50 S at relatively high spatial (12 km) and temporal (3 hourly) resolution. Examples of model results for recent flood events are computed using the real-time GFMS (http://flood.umd.edu). To evaluate the accuracy of the new GFMS, the DRIVE model is run retrospectively for 15 years using both research-quality and real-time satellite precipitation products. Evaluation results are slightly better for the research-quality input and significantly better for longer duration events (3 day events versus 1 day events). Basins with fewer dams tend to provide lower false alarm ratios. For events longer than three days in areas with few dams, the probability of detection is 0.9 and the false alarm ratio is 0.6. In general, these statistical results are better than those of the previous system. Streamflow was evaluated at 1121 river gauges across the quasi-global domain. Validation using real-time precipitation across the tropics (30 S-30 N) gives positive daily Nash-Sutcliffe Coefficients for 107 out of 375 (28%) stations with a mean of 0.19 and 51% of the same gauges at monthly scale with a mean of 0.33. There were poorer results in higher latitudes, probably due to larger errors in the satellite precipitation input.

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A large-scale horizontal routing model to be coupled to land surf ace parametrization schemes

Cited by 393 publications

References 17 publications

Potential increase in floods in California’s Sierra Nevada under future climate projections

Potential increase in floods in California’s Sierra Nevada under future climate projections

mizuRoute version 1: a river network routing tool for a continental domain water resources applications

Real‐time global flood estimation using satellite‐based precipitation and a coupled land surface and routing model

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