skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Hydrologic investigations of radar-rainfall error propagation to rainfall-runoff model hydrographs

Journal Article · · Advances in Water Resources
ORCiD logo [1];  [2];  [3];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Iowa, Iowa City, IA (United States)
  3. Berkshire Hathaway Specialty Insurance, San Ramon, CA (United States)

Rainfall is arguably the most important yet most variable input for rainfall-runoff hydrologic models. In this study, the authors search for the characteristics of radar-rainfall estimates that are most important for skillful streamflow predictions. They perform comprehensive hydrologic investigations of radar-rainfall characteristics, including spatiotemporal resolution, radar range visibility, statistical characterization of rainfall variability, all vis-a-vis basin characteristics such as size and river network topology. Since the true rainfall fields are unknown, the authors exploit a paradigm of using two independently constructed radar-rainfall products i.e., Multi-Radar Multi-Sensor and IFC-ZR used operationally by the Iowa Flood Center (IFC). Using the distributed hydrologic model called the Hillslope-Link Model for the domain of the state of Iowa, they evaluate streamflow prediction at 140 USGS gauge stations that monitor rivers in Iowa. Through spatial and temporal rainfall aggregation experiments, the authors show that the impact of spatial and temporal resolution of rainfall is significant typically for smaller basins while starts reducing significantly for basins larger than 1,000 km2. Other rainfall characteristics they explored do not reveal a strong signature in the relationship of rainfall differences between the two products and hydrograph errors. However, exploring the product similarities rather than differences reveals that the basin-wide rainfall volume has the most significant effect on streamflow prediction. The results from this study are generalizable for all rainfall observing systems.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1843668
Journal Information:
Advances in Water Resources, Vol. 161; ISSN 0309-1708
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Hydrologic Implications of Wind Farm Effect on Radar‐Rainfall Observations journal August 2020
Radar-rainfall estimation algorithms of Hydro-NEXRAD journal November 2010
Real-time estimation of mean field bias in radar rainfall data journal October 1999
Impact of spatial and temporal resolution of rainfall inputs on urban hydrodynamic modelling outputs: A multi-catchment investigation journal December 2015
Large-Sample Evaluation of Two Methods to Correct Range-Dependent Error for WSR-88D Rainfall Estimates journal October 2001
A Description of the Initial Set of Analysis Products Available from the NEXRAD WSR-88D System journal July 1993
When does higher spatial resolution rainfall information improve streamflow simulation? An evaluation using 3620 flood events journal January 2014
National Mosaic and Multi-Sensor QPE (NMQ) System: Description, Results, and Future Plans journal October 2011
Impacts of rainfall spatial variability on hydrogeological response journal February 2015
RADAR-Rainfall Uncertainties: Where are We after Thirty Years of Effort? journal January 2010
Modeling Radar Rainfall Estimation Uncertainties: Random Error Model journal April 2010
The significance of spatial rainfall representation for flood runoff estimation: A numerical evaluation based on the Lee catchment, UK journal December 2007
Modelling the effects of spatial variability in rainfall on catchment response. 2. Experiments with distributed and lumped models journal February 1996
The relative role of hillslope and river network routing in the hydrologic response to spatially variable rainfall fields journal December 2015
Connecting the power-law scaling structure of peak-discharges to spatially variable rainfall and catchment physical properties journal September 2014
Radar for hydrology: Unfulfilled promise or unrecognized potential? journal January 2013
An asynchronous solver for systems of ODEs linked by a directed tree structure journal March 2013
What controls the width function shape, and can it be used for channel network comparison and regionalization?: WIDTH FUNCTION CONTROLS AND USE journal August 2008
Runoff model sensitivity to radar rainfall resolution journal June 1994
Improvement and evaluation of the Iowa Flood Center Hillslope Link Model (HLM) by calibration-free approach journal May 2020
Review of the Different Sources of Uncertainty in Single Polarization Radar-Based Estimates of Rainfall journal August 2009
Decomposition of the mean squared error and NSE performance criteria: Implications for improving hydrological modelling journal October 2009
The Influence of Spatial Variability of Width Functions on Regional Peak Flow Regressions journal October 2018
Influence of rainfall spatial resolution on flash flood modelling journal January 2009
Accuracy of rainfall estimates by radar, part III: Application for short-term flood forecasting journal March 1986
Field studies of the storm event hydrologic response in an urbanizing watershed: FIELD STUDIES OF URBAN HYDROLOGIC RESPONSE journal October 2005
Interpretation of mean-field bias correction of radar rain rate using the concept of linear regression: MEAN-FIELD BIAS CORRECTION AND LINEAR REGRESSION journal August 2013
Resolution considerations in using radar rainfall data for flood forecasting journal June 1989
Empirical Distribution of Conditional Errors in Radar Rainfall Products journal November 2020
Evaluating model performance: towards a non-parametric variant of the Kling-Gupta efficiency journal October 2018
Impact of imperfect rainfall knowledge on the efficiency and the parameters of watershed models journal September 2001
Impact of radar‐rainfall error structure on estimated flood magnitude across scales: An investigation based on a parsimonious distributed hydrological model journal October 2012
Understanding the Scale Relationships of Uncertainty Propagation of Satellite Rainfall through a Distributed Hydrologic Model journal April 2010
Comprehensive Evaluation of the IFloodS Radar Rainfall Products for Hydrologic Applications journal November 2018
A Spatial–Dynamical Framework for Evaluation of Satellite Rainfall Products for Flood Prediction journal August 2016
Understanding predictive uncertainty in hydrologic modeling: The challenge of identifying input and structural errors: IDENTIFIABILITY OF INPUT AND STRUCTURAL ERRORS journal May 2010
A synthesis of space-time variability in storm response: Rainfall, runoff generation, and routing journal August 1999
Hydrologic modeling Of New England river basins using radar rainfall data journal January 1990
Development of Synthetic Rating Curves: Case Study in Iowa journal January 2021
A Power Law Model for River Flow Velocity in Iowa Basins journal June 2018
Towards better utilization of NEXRAD data in hydrology: an overview of Hydro-NEXRAD journal April 2010
Statistical Analysis of Radar Rainfall Error Propagation journal February 2004
Radar hydrology: rainfall estimation journal August 2002
Use of Weather Radar for Flood Forecasting in the Sieve River Basin: A Sensitivity Analysis journal March 1993
Real-Time Flood Forecasting and Information System for the State of Iowa journal March 2017
Analyzing the effects of excess rainfall properties on the scaling structure of peak discharges: Insights from a mesoscale river basin: SCALE INVARIANCE OF PEAK DISCHARGES journal June 2015
On the impact of rainfall patterns on the hydrologic response: RAINFALL PATTERNS AND HYDROLOGIC RESPONSE journal December 2008
Correcting temporal sampling error in radar-rainfall: Effect of advection parameters and rain storm characteristics on the correction accuracy journal December 2015
Accuracy of radar rainfall estimates for streamflow simulation journal October 2002
Uncertainty in hydrologic modeling: Toward an integrated data assimilation framework: HYDROLOGIC DATA ASSIMILATION journal July 2007
Comparison of Single- and Dual-Polarization–Based Rainfall Estimates Using NEXRAD Data for the NASA Iowa Flood Studies Project journal August 2015
Estimation of the Mean Field Bias of Radar Rainfall Estimates journal April 1991
A GIS Numerical Framework to Study the Process Basis of Scaling Statistics in River Networks journal October 2005
A variable source area model of the rainfall-runoff process based on the Watershed Stream Network journal October 1976
Sensitivity of a mountain basin flash flood to initial wetness condition and rainfall variability journal May 2011
Multi-Radar Multi-Sensor (MRMS) Quantitative Precipitation Estimation: Initial Operating Capabilities journal April 2016

Similar Records

The directional unit hydrograph model: Connecting streamflow response to storm dynamics
Journal Article · Fri Dec 01 00:00:00 EST 2023 · Journal of Hydrology · OSTI ID:1843668

Scale-Dependent Value of QPF for Real-Time Streamflow Forecasting
Journal Article · Mon Jul 19 00:00:00 EDT 2021 · Journal of Hydrometeorology · OSTI ID:1843668

Insights into storm direction effect on flood response
Journal Article · Sat Jul 17 00:00:00 EDT 2021 · Journal of Hydrology · OSTI ID:1843668