Two decades of anarchy? Emerging themes and outstanding challenges for neural network river forecasting

Abrahart RJ, Anctil F, Coulibaly P, Dawson CW, Mount NJ, See L, Shamseldin AY, Solomatine DP, et al. (2012). Two decades of anarchy? Emerging themes and outstanding challenges for neural network river forecasting. Progress in Physical Geography 36 (4): 480-513. DOI:10.1177/0309133312444943.

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Abstract

This paper traces two decades of neural network rainfall-runoff and streamflow modelling, collectively termed "river forecasting." The field is now firmly established and the research community involved has much to offer hydrological science. First, however, it will be necessary to converge on more objective and consistent protocols for: selecting and treating inputs prior to model development; extracting physically meaningful insights from each proposed solution; and improving transparency in the benchmarking and reporting of experimental case studies. It is also clear that neural network river forecasting solutions will have limited appeal for operational purposes until confidence intervals can be attached to forecasts. Modular design, ensemble experiments, and hybridization with conventional hydrological models are yielding new tools for decision-making. The full potential for modelling complex hydrological systems, and for characterizing uncertainty, has yet to be realized. Further gains could also emerge from the provision of an agreed set of benchmark data sets and associated development of superior diagnostics for more rigorous intermodel evaluation. To achieve these goals will require a paradigm shift, such that the mass of individual isolated activities, focused on incremental technical refinement, is replaced by a more coordinated, problem-solving international research body.

Item Type: Article
Uncontrolled Keywords: Forecasting; Modelling; Network; Neural; River
Research Programs: Ecosystems Services and Management (ESM)
Bibliographic Reference: Progress in Physical Geography; 36(4):480-513 (August 2012) (Published online 14 June 2012)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:46
Last Modified: 12 Sep 2016 13:38
URI: http://pure.iiasa.ac.at/9920

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