2015
DOI: 10.5194/hess-19-2925-2015
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TopREML: a topological restricted maximum likelihood approach to regionalize trended runoff signatures in stream networks

Abstract: Abstract. We introduce topological restricted maximum likelihood (TopREML) as a method to predict runoff signatures in ungauged basins. The approach is based on the use of linear mixed models with spatially correlated random effects. The nested nature of streamflow networks is taken into account by using water balance considerations to constrain the covariance structure of runoff and to account for the stronger spatial correlation between flow-connected basins. The restricted maximum likelihood (REML) framewor… Show more

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Cited by 21 publications
(12 citation statements)
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“…They often use a limited number of physically meaningful parameters, with low computational burden, to mechanistically link the drivers, state and hydrologic response of the catchment [Müller and Thompson, 2015]. process-based models can also be applied in the absence of long term discharge time series, as they require minimal or no calibration [Doulatyari et al, 2015].…”
Section: Introductionmentioning
confidence: 99%
“…They often use a limited number of physically meaningful parameters, with low computational burden, to mechanistically link the drivers, state and hydrologic response of the catchment [Müller and Thompson, 2015]. process-based models can also be applied in the absence of long term discharge time series, as they require minimal or no calibration [Doulatyari et al, 2015].…”
Section: Introductionmentioning
confidence: 99%
“…Drainage area can have a significant influence on model performance [69]. This phenomenon became apparent here when we divided the study basins into three groups according to their drainage area (each group having 10 study basins) and then viewed the NSE DB s and NSE IDW s in box plots (Figure 8).…”
Section: The Effect Of Drainage Area On Model Performancementioning
confidence: 94%
“…The corresponding contributing areas can be either “nested” (if one catchment is embedded into a larger one) or “non‐nested” (i.e., if the intersection between the two contributing areas is null). The nested/non‐nested nature of river basins can strongly influence the relationship between their hydrographs (e.g., Müller & Thompson, 2015; Skøien & Blöschl, 2007). In fact, while two nested outlets are physically connected by routing processes, non‐nested catchments lack a direct physical link (Betterle, Schirmer, & Botter, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…2015). In fact, catchment nestedness is commonly considered as a proxy of hydrological similarity (Gottschalk et al., 2006, 2011; Müller & Thompson, 2015; Skøien et al., 2006). However, non‐nested catchments can also display similar flow dynamics owing to common hydrological drivers.…”
Section: Introductionmentioning
confidence: 99%