A new global river network database for macroscale hydrologic modeling

Huan Wu, John S. Kimball, Hongyi Li, Maoyi Huang, L. Ruby Leung, Robert F. Adler

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

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° to 2°) 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.

Original languageEnglish
Article numberW09701
JournalWater Resources Research
Volume48
Issue number9
DOIs
StatePublished - 2012

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