Abbreviated Journal Title
Geophys. Res. Lett.
Keywords
MEAN ANNUAL EVAPOTRANSPIRATION; CLIMATE; CALIBRATION; RUNOFF; SCALE; Geosciences, Multidisciplinary
Abstract
Hydrologic models can be categorized as being either Newtonian or Darwinian in nature. The Newtonian approach requires a thorough understanding of the individual physical processes acting in a watershed in order to build a detailed hydrologic model based on the conservation equations. The Darwinian approach seeks to explain the behavior of a hydrologic system as a whole by identifying simple and robust temporal or spatial patterns that capture the relevant processes. Darwinian-based hydrologic models include the Soil Conservation Service (SCS) curve number model, the "abcd" model, and the Budyko-type models. However, these models were developed based on widely differing principles and assumptions and applied to distinct time scales. Here, we derive a one-parameter Budyko-type model for mean annual water balance which is based on a generalization of the proportionality hypothesis of the SCS model and therefore is independent of temporal scale. Furthermore, we show that the new model is equivalent to the key equation of the "abcd" model. Theoretical lower and upper bounds of the new model are identified and validated based on previous observations. Thus, we illustrate a temporal pattern of water balance amongst Darwinian hydrologic models, which allows for synthesis with the Newtonian approach and offers opportunities for progress in hydrologic modeling.
Journal Title
Geophysical Research Letters
Volume
41
Issue/Number
13
Publication Date
1-1-2014
Document Type
Article
Language
English
First Page
4569
Last Page
4577
WOS Identifier
ISSN
0094-8276
Recommended Citation
Wang, Dingbao and Tang, Yin, "A one-parameter Budyko model for water balance captures emergent behavior in darwinian hydrologic models" (2014). Faculty Bibliography 2010s. 6244.
https://stars.library.ucf.edu/facultybib2010/6244
Comments
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