A unified approach for process-based hydrologic modeling: 1. Modeling concept Public Deposited

http://ir.library.oregonstate.edu/concern/articles/6108vd20n

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by American Geophysical Union and can be found at:  http://agupubs.onlinelibrary.wiley.com/agu/journal/10.1002/%28ISSN%291944-7973/

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  • This work advances a unified approach to process-based hydrologic modeling to enable controlled and systematic evaluation of multiple model representations (hypotheses) of hydrologic processes and scaling behavior. Our approach, which we term the Structure for Unifying Multiple Modeling Alternatives (SUMMA), formulates a general set of conservation equations, providing the flexibility to experiment with different spatial representations, different flux parameterizations, different model parameter values, and different time stepping schemes. In this paper, we introduce the general approach used in SUMMA, detailing the spatial organization and model simplifications, and how different representations of multiple physical processes can be combined within a single modeling framework. We discuss how SUMMA can be used to systematically pursue the method of multiple working hypotheses in hydrology. In particular, we discuss how SUMMA can help tackle major hydrologic modeling challenges, including defining the appropriate complexity of a model, selecting among competing flux parameterizations, representing spatial variability across a hierarchy of scales, identifying potential improvements in computational efficiency and numerical accuracy as part of the numerical solver, and improving understanding of the various sources of model uncertainty.
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  • Clark, M. P., Nijssen, B., Lundquist, J. D., Kavetski, D., Rupp, D. E., Woods, R. A., ... & Rasmussen, R. M. (2015). A unified approach for process‐based hydrologic modeling: 1. Modeling concept. Water Resources Research, 51(4), 2498-2514. doi:10.1002/2015WR017198
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  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-07-21T17:15:29Z No. of bitstreams: 1 RuppDavidCEOASUnifiedApproachProcess1.pdf: 1190186 bytes, checksum: e8aefc64b8bdbe59791929a0d5ea8831 (MD5)
  • description.provenance : Made available in DSpace on 2015-07-21T17:15:52Z (GMT). No. of bitstreams: 1 RuppDavidCEOASUnifiedApproachProcess1.pdf: 1190186 bytes, checksum: e8aefc64b8bdbe59791929a0d5ea8831 (MD5) Previous issue date: 2015-04
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-07-21T17:15:52Z (GMT) No. of bitstreams: 1 RuppDavidCEOASUnifiedApproachProcess1.pdf: 1190186 bytes, checksum: e8aefc64b8bdbe59791929a0d5ea8831 (MD5)

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