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Peer-reviewed

Diagnostic Evaluation of Large‐Domain Hydrologic Models Calibrated Across the Contiguous United States

Oldřich Rakovec, Naoki Mizukami, Rohini Kumar, Andrew J. Newman, Stephan Thober, Andrew W. Wood, Martyn Clark, Luis Samaniego

Journal of Geophysical Research Atmospheres · 2019

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Summary

Abstract This study presents diagnostic evaluation of two large‐domain hydrologic models: the mesoscale Hydrologic Model (mHM) and the Variable Infiltration Capacity (VIC) over the contiguous United States (CONUS). These models have been calibrated using the Multiscale Parameter Regionalization scheme in a joint, multibasin approach using 492 medium‐sized basins across the CONUS yielding spatially distributed model parameter sets. The mHM simulations are used as a performance benchmark to examine performance deficiencies in the VIC model. We find that after calibration to streamflow, VIC generally overestimates the magnitude and temporal variability of evapotranspiration (ET) as compared to mHM as well as the FLUXNET observation‐based ET product, resulting in underestimation of the mean an

Source type
Peer-reviewed study
DOI
10.1029/2019jd030767
Catalogue ID
BFmoef2us1-bd88d1
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