Journal
WATER RESOURCES RESEARCH
Volume 48, Issue -, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2012WR012313
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Funding
- Gordon and Betty Moore Foundation
- NASA Applied Sciences Program
- integrated earth system modeling (iESM) project
- DOE Earth System Modeling Program
- U.S. DOE by Battelle Memorial Institute [DE-AC06-76RLO1830]
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Coarse-resolution (upscaled) river networks are critical inputs for runoff routing in macroscale hydrologic models. Recently, Wu et al. (2011) developed a hierarchical dominant river tracing (DRT) algorithm for automated extraction and spatial upscaling of river networks using fine-scale hydrography inputs. We applied the DRT algorithms using combined HydroSHEDS and HYDRO1k global fine-scale hydrography inputs and produced a new series of upscaled global river network data at multiple (1/16 degrees to 2 degrees) spatial resolutions. The new upscaled results are internally consistent and congruent with the baseline fine-scale inputs and should facilitate improved regional to global scale hydrologic simulations.
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