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Title: Assessment of the ParFlow–CLM CONUS 1.0 integrated hydrologic model: evaluation of hyper-resolution water balance components across the contiguous United States

Journal Article · · Geoscientific Model Development (Online)

Abstract. Recent advancements in computational efficiency and Earth system modeling have awarded hydrologists with increasingly high-resolution models of terrestrial hydrology, which are paramount to understanding and predicting complex fluxes of moisture and energy. Continental-scale hydrologic simulations are, in particular, of interest to the hydrologic community for numerous societal, scientific, and operational benefits. The coupled hydrology–land surface model ParFlow–CLM configured over the continental United States (PFCONUS) has been employed in previous literature to study scale-dependent connections between water table depth, topography, recharge, and evapotranspiration, as well as to explore impacts of anthropogenic aquifer depletion to the water and energy balance. These studies have allowed for an unprecedented process-based understanding of the continental water cycle at high resolution. Here, we provide the most comprehensive evaluation of PFCONUS version 1.0 (PFCONUSv1) performance to date by comparing numerous modeled water balance components with thousands of in situ observations and several remote sensing products and using a range of statistical performance metrics for evaluation. PFCONUSv1 comparisons with these datasets are a promising indicator of model fidelity and ability to reproduce the continental-scale water balance at high resolution. Areas for improvement are identified, such as a positive streamflow bias at gauges in the eastern Great Plains, a shallow water table bias over many areas of the model domain, and low bias in seasonal total water storage amplitude, especially for the Ohio, Missouri, and Arkansas River basins. We discuss several potential sources for model bias and suggest that minimizing error in topographic processing and meteorological forcing would considerably improve model performance. Results here provide a benchmark and guidance for further PFCONUS model development, and they highlight the importance of concurrently evaluating all hydrologic components and fluxes to provide a multivariate, holistic validation of the complete modeled water balance.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DE‐AC02‐05CH11231
OSTI ID:
1833114
Journal Information:
Geoscientific Model Development (Online), Journal Name: Geoscientific Model Development (Online) Vol. 14 Journal Issue: 12; ISSN 1991-9603
Publisher:
Copernicus GmbHCopyright Statement
Country of Publication:
Germany
Language:
English

References (87)

How evaluation of global hydrological models can help to improve credibility of river discharge projections under climate change journal October 2020
Model Evaluation Guidelines for Systematic Quantification of Accuracy in Watershed Simulations journal January 2007
Evaluation of streamflow simulation results of land surface models in GLDAS on the Tibetan plateau: GLDAS Runoff Simulations on the TP journal October 2016
A study on DEM-derived primary topographic attributes for hydrologic applications: Sensitivity to elevation data resolution journal July 2008
Natural length scales define the range of applicability of the Richards equation for capillary flows: NATURAL LENGTH SCALES FOR APPLICATION OF RICHARDS EQUATION journal September 2015
Global-scale regionalization of hydrologic model parameters: GLOBAL-SCALE REGIONALIZATION journal May 2016
ESA CCI Soil Moisture for improved Earth system understanding: State-of-the art and future directions journal December 2017
Towards global empirical upscaling of FLUXNET eddy covariance observations: validation of a model tree ensemble approach using a biosphere model journal January 2009
Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future journal April 2003
Studying the influence of groundwater representations on land surface-atmosphere feedbacks during the European heat wave in 2003: Groundwater Feedbacks on 2003 Heat Wave journal November 2016
Global Topographic Slope Enforcement to Ensure Connectivity and Drainage in an Urban Terrain journal April 2016
Development of a Coupled Land Surface and Groundwater Model journal June 2005
The Measurement of Vertical Transfer of heat and Water Vapor by Eddies in the Lower Atmosphere journal June 1951
Hyperresolution global land surface modeling: Meeting a grand challenge for monitoring Earth's terrestrial water: OPINION journal May 2011
The Common Land Model journal August 2003
Improvements to a MODIS global terrestrial evapotranspiration algorithm journal August 2011
The integrated hydrologic model intercomparison project, IH-MIP2: A second set of benchmark results to diagnose integrated hydrology and feedbacks: INTEGRATED HYDROLOGIC MODEL INTERCOMPARISON, IH-MIP2 journal January 2017
Comment on “Hyperresolution global land surface modeling: Meeting a grand challenge for monitoring Earth's terrestrial water” by Eric F. Wood et al.: COMMENTARY journal January 2012
The value of multiple data set calibration versus model complexity for improving the performance of hydrological models in mountain catchments journal April 2015
The imprint of climate and geology on the residence times of groundwater journal January 2016
New Global Hydrography Derived From Spaceborne Elevation Data journal January 2008
Improved numerical solvers for implicit coupling of subsurface and overland flow journal December 2014
Statistical bias correction of global simulated daily precipitation and temperature for the application of hydrological models journal December 2010
Development of a global evapotranspiration algorithm based on MODIS and global meteorology data journal December 2007
A glimpse beneath earth's surface: GLobal HYdrogeology MaPS (GLHYMPS) of permeability and porosity journal June 2014
Operational Evapotranspiration Mapping Using Remote Sensing and Weather Datasets: A New Parameterization for the SSEB Approach journal May 2013
Evaluation of the Global Land Data Assimilation System using global river discharge data and a source-to-sink routing scheme: SOURCE TO SINK ROUTING FOR GLOBAL MODELS journal June 2010
Sensitivity analysis of hydraulic conductivity and Manning's n parameters lead to new method to scale effective hydraulic conductivity across model resolutions journal November 2018
The International Land Model Benchmarking (ILAMB) System: Design, Theory, and Implementation journal November 2018
Proof of concept of regional scale hydrologic simulations at hydrologic resolution utilizing massively parallel computer resources: RAPID COMMUNICATION journal April 2010
An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations: SMAP Comparisons journal September 2016
Quantifying and reducing leakage errors in the JPL RL05M GRACE mascon solution: GRACE JPL RL05M LEAKAGE ERROR REDUCTION journal September 2016
Scaling snow observations from the point to the grid element: Implications for observation network design: UPSCALING SNOW OBSERVATIONS journal November 2005
Evaluation of NLDAS-2 evapotranspiration against tower flux site observations: EVALUATION OF NLDAS-2 EVAPOTRANSPIRATION journal August 2014
A global-scale two-layer transient groundwater model: Development and application to groundwater depletion journal April 2017
A comparison of methods for determining forest evapotranspiration and its components: sap-flow, soil water budget, eddy covariance and catchment water balance journal January 2001
Continental-scale water and energy flux analysis and validation for North American Land Data Assimilation System project phase 2 (NLDAS-2): 2. Validation of model-simulated streamflow: VALIDATION OF MODEL-SIMULATED STREAMFLOW journal February 2012
Diagnostic Evaluation of Large‐Domain Hydrologic Models Calibrated Across the Contiguous United States journal December 2019
Evaluation of groundwater storage monitoring with the GRACE satellite: Case study of the High Plains aquifer, central United States: MONITORING GROUNDWATER STORAGE journal May 2009
Validation of terrestrial water storage variations as simulated by different global numerical models with GRACE satellite observations journal January 2017
Comparison of NLDAS-2 Simulated and NASMD Observed Daily Soil Moisture. Part I: Comparison and Analysis journal October 2015
Global Patterns of Groundwater Table Depth journal February 2013
Significant uncertainty in global scale hydrological modeling from precipitation data errors journal October 2015
Decomposition of the mean squared error and NSE performance criteria: Implications for improving hydrological modelling journal October 2009
Continental-scale water and energy flux analysis and validation for the North American Land Data Assimilation System project phase 2 (NLDAS-2): 1. Intercomparison and application of model products: WATER AND ENERGY FLUX ANALYSIS journal February 2012
The community Noah land surface model with multiparameterization options (Noah-MP): 1. Model description and evaluation with local-scale measurements journal January 2011
Seasonal Water Storage Variations as Impacted by Water Abstractions: Comparing the Output of a Global Hydrological Model with GRACE and GPS Observations journal March 2014
Evolution of the ESA CCI Soil Moisture climate data records and their underlying merging methodology journal January 2019
Continental Hydrologic Intercomparison Project, Phase 1: A Large‐Scale Hydrologic Model Comparison Over the Continental United States journal June 2021
Mapping permeability over the surface of the Earth: MAPPING GLOBAL PERMEABILITY journal January 2011
Estimating evapotranspiration using an observation based terrestrial water budget: WATER BUDGET EVAPOTRANSPIRATION journal December 2011
Accelerating advances in continental domain hydrologic modeling: ACCELERATING ADVANCES IN CONTINENTAL HYDROLOGIC MODELING journal December 2015
PCR-GLOBWB 2: a 5 arcmin global hydrological and water resources model journal January 2018
Global assessment of agreement among streamflow projections using CMIP5 model outputs journal May 2014
A high-resolution simulation of groundwater and surface water over most of the continental US with the integrated hydrologic model ParFlow v3 journal January 2015
Technical review of large-scale hydrological models for implementation in operational flood forecasting schemes on continental level journal January 2016
Integrated surface–groundwater flow modeling: A free-surface overland flow boundary condition in a parallel groundwater flow model journal July 2006
Using uncertainty of Penman and Penman–Monteith methods in combined satellite and ground-based evapotranspiration estimates journal November 2015
A terrain-following grid transform and preconditioner for parallel, large-scale, integrated hydrologic modeling journal March 2013
The global water resources and use model WaterGAP v2.2d: model description and evaluation journal January 2021
Improving the representation of hydrologic processes in Earth System Models: REPRESENTING HYDROLOGIC PROCESSES IN EARTH SYSTEM MODELS journal August 2015
Real‐time and retrospective forcing in the North American Land Data Assimilation System (NLDAS) project journal October 2003
New data sets to estimate terrestrial water storage change journal November 2007
Global Hydrological Cycles and World Water Resources journal August 2006
A comprehensive evaluation of two MODIS evapotranspiration products over the conterminous United States: Using point and gridded FLUXNET and water balance ET journal December 2013
Evaluation of three complementary relationship evapotranspiration models by water balance approach to estimate actual regional evapotranspiration in different climatic regions journal July 2005
Quantitative assessment of groundwater controls across major US river basins using a multi-model regression algorithm journal August 2015
Accuracy of scaled GRACE terrestrial water storage estimates: ACCURACY OF GRACE-TWS journal April 2012
Evaluation of a moderate resolution imaging spectroradiometer triangle-based algorithm for evapotranspiration estimates in subalpine regions journal January 2016
Simulating the sensitivity of evapotranspiration and streamflow to large-scale groundwater depletion journal June 2019
The GFZ GRACE RL06 Monthly Gravity Field Time Series: Processing Details and Quality Assessment journal September 2019
Systematic shifts in Budyko relationships caused by groundwater storage changes journal January 2017
Evapotranspiration depletes groundwater under warming over the contiguous United States journal February 2020
Exploring the Sensitivity of Photosynthesis and Stomatal Resistance Parameters in a Land Surface Model journal March 2017
Evaluating the relationship between topography and groundwater using outputs from a continental-scale integrated hydrology model: EVALUATING GROUNDWATER CONTROLS journal August 2015
High-resolution CSR GRACE RL05 mascons: HIGH-RESOLUTION CSR GRACE RL05 MASCONS journal October 2016
Towards Real-Time Continental Scale Streamflow Simulation in Continuous and Discrete Space journal October 2017
Connections between groundwater flow and transpiration partitioning journal July 2016
Hyper-resolution global hydrological modelling: what is next?: “Everywhere and locally relevant” journal December 2014
Getting the right answers for the right reasons: Linking measurements, analyses, and models to advance the science of hydrology: GETTING THE RIGHT ANSWERS FOR THE RIGHT REASONS journal March 2006
A Long-Term Hydrologically Based Dataset of Land Surface Fluxes and States for the Conterminous United States* journal November 2002
Comparing potential recharge estimates from three Land Surface Models across the western US journal February 2017
Newton–Krylov-multigrid solvers for large-scale, highly heterogeneous, variably saturated flow problems journal July 2001
Dynamics of Terrestrial Water Storage Change from Satellite and Surface Observations and Modeling journal February 2010
A Closed-form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils1 journal January 1980
Influence of climate model biases and daily-scale temperature and precipitation events on hydrological impacts assessment: A case study of the United States journal January 2010
Land surface Verification Toolkit (LVT) – a generalized framework for land surface model evaluation journal January 2012