TY  - JOUR
A1  - Samaniego Eguiguren, Luis Eduardo
A1  - Kumar, Rohini
A1  - Thober, Stephan
A1  - Rakovec, Oldrich
A1  - Zink, Matthias
A1  - Wanders, Niko
A1  - Eisner, Stephanie
A1  - Müller Schmied, Hannes
A1  - Sutanudjaja, Edwin H.
A1  - Warrach-Sagi, Kirsten
A1  - Attinger, Sabine
T1  - Toward seamless hydrologic predictions across spatial scales
T2  - Hydrology and earth system sciences
N2  - Land surface and hydrologic models (LSMs/HMs) are used at diverse spatial resolutions ranging from catchment-scale (1–10 km) to global-scale (over 50 km) applications. Applying the same model structure at different spatial scales requires that the model estimates similar fluxes independent of the chosen resolution, i.e., fulfills a flux-matching condition across scales. An analysis of state-of-the-art LSMs and HMs reveals that most do not have consistent hydrologic parameter fields. Multiple experiments with the mHM, Noah-MP, PCR-GLOBWB, and WaterGAP models demonstrate the pitfalls of deficient parameterization practices currently used in most operational models, which are insufficient to satisfy the flux-matching condition. These examples demonstrate that J. Dooge's 1982 statement on the unsolved problem of parameterization in these models remains true. Based on a review of existing parameter regionalization techniques, we postulate that the multiscale parameter regionalization (MPR) technique offers a practical and robust method that provides consistent (seamless) parameter and flux fields across scales. Herein, we develop a general model protocol to describe how MPR can be applied to a particular model and present an example application using the PCR-GLOBWB model. Finally, we discuss potential advantages and limitations of MPR in obtaining the seamless prediction of hydrological fluxes and states across spatial scales.
Y1  - 2017
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/44375
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-443751
SN  - 1607-7938
SN  - 1027-5606
N1  - © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License.
VL  - 21
SP  - 4323
EP  - 4346
PB  - European Geosciences Union
CY  - Katlenburg-Lindau.
ER  -