Case study of the use of remotely sensed data for modeling flood inundation on the river Severn, UK.
Wright, N., Villanueva, I., Bates, P., Mason, D. C., Wilson, M., Pender , G. and Neelz, S. (2008) Case study of the use of remotely sensed data for modeling flood inundation on the river Severn, UK. Journal of Hydraulic Engineering, 134 (5). pp. 533-540. ISSN 0733-9429
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To link to this article DOI: 10.1061/(ASCE)0733-9429(2008)134:5(533)
A methodology for using remotely sensed data to both generate and evaluate a hydraulic model of floodplain inundation is presented for a rural case study in the United Kingdom: Upton-upon-Severn. Remotely sensed data have been processed and assembled to provide an excellent test data set for both model construction and validation. In order to assess the usefulness of the data and the issues encountered in their use, two models for floodplain inundation were constructed: one based on an industry standard one-dimensional approach and the other based on a simple two-dimensional approach. The results and their implications for the future use of remotely sensed data for predicting flood inundation are discussed. Key conclusions for the use of remotely sensed data are that care must be taken to integrate different data sources for both model construction and validation and that improvements in ground height data shift the focus in terms of model uncertainties to other sources such as boundary conditions. The differences between the two models are found to be of minor significance.
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