气候变化领域集成服务门户(CCPortal): Advancing global flood hazard simulations by improving comparability, benchmarking, and integration of global flood models

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DOI	10.1088/1748-9326/aaf3d3
	Advancing global flood hazard simulations by improving comparability, benchmarking, and integration of global flood models
	Hoch J.M.; Trigg M.A.
发表日期	2019
ISSN	17489318
卷号	14 期号:3
英文摘要	In recent years, a range of global flood models (GFMs) were developed, each utilizing different process descriptions as well as validation data sets and methods. To quantify the magnitude of these differences, studies assessed the performance of GFMs only on the continental and catchment level. Since the default model set-ups resulted in locally marked deviations, there is a clear need for further and especially more standardized research to not only maintain credibility, but also support the application of GFM products by end-users. Consequently, here we conceptually outline the basic requirements and challenges of a Global Flood Model Validation Framework for more standardized model validation and benchmarking. With the proposed framework we hope to encourage the much needed debate, research developments in this direction, and involvement of science with end-users. By means of the framework, it is possible to streamline the data sets used for input and validation as well as the validation approach itself. By subjecting GFMs to more thorough and standardized methods, we think their quality as well as acceptance will increase as a result, especially amongst end-users of their outputs. Otherwise GFMs may only serve a purely scientific purpose of continued 'siloed' model improvement but without practical use. Furthermore, we want to invite GFM developers to make their models more integratable which would allow for representation of more physical processes and even more detailed comparison on a model component basis. We think this is pivotal to not only improve the accuracy of model input data sets, but to focus on the core of each model, the process descriptions. Only if we know more about why GFMs deviate, are we able to improve them accordingly and develop a next generation of models, not only providing first-order estimates of flood extent but supporting the global disaster risk reduction community with more accurate and actionable information. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	flood risk management; framework; global flood models; model intercomparison; model validation
语种	英语
scopus关键词	Benchmarking; Catchments; Flood control; Risk management; Flood models; Flood risk management; framework; Model inter comparisons; Model validation; Floods; accuracy assessment; benchmarking; catchment; data set; disaster; flood; flood control; model validation; performance assessment; risk assessment; simulation
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154685
作者单位	Department of Physical Geography, Faculty of Geosciences, Utrecht University, Netherlands; Unit Surface Water Systems, Deltares, Delft, Netherlands; School of Civil Engineering, Faculty of Engineering, University of Leeds, Leeds, United Kingdom
推荐引用方式 GB/T 7714	Hoch J.M.,Trigg M.A.. Advancing global flood hazard simulations by improving comparability, benchmarking, and integration of global flood models[J],2019,14(3).
APA	Hoch J.M.,&Trigg M.A..(2019).Advancing global flood hazard simulations by improving comparability, benchmarking, and integration of global flood models.Environmental Research Letters,14(3).
MLA	Hoch J.M.,et al."Advancing global flood hazard simulations by improving comparability, benchmarking, and integration of global flood models".Environmental Research Letters 14.3(2019).