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<br />The Convnittee decided early in their deliberations that a subcontract <br />should be awarded to the Institute of Hydraulic Research of The University of <br />Iowa to engage Dr. Tatsuaki Nakato to manage the technical aspects of the <br />study. Specifically, the subcontractor was to: <br /> <br />1. Prepare an inventory of available computer-based flood- and sediment- <br />routing models; a detailed description of each model's capabilities, <br />limitations, required input and input format, and output and output <br />format; and a general evaluation of each model's strengths, weakness <br />and applicability for use in flood insurance studies. <br />2. Propose, for convnittee consideration, at least two U.s. river <br />channe 1 sand correspondi ng f1 ood events to be used as test cases in <br />the evaluation and comparison of models deemed appropriate by the <br />Committee. <br />3. Compile the data required by each model, in the format required, for <br />the test cases sel ected and transmit these data packages to the <br />app rop ri ate agenci es or i ndi vi dua 1 s for use in performi ng the test- <br />case calculations. <br />4. Make the arrangements required for the various agencies or <br />individuals responsible for the selected models to perform test-case <br />calculations using their models. <br />5. Perform, using the test cases selected by the Committee, a set of <br />test-case calculations using one of the selected models in order to <br />provide some indication of the accuracy, resolution, reproducibility, <br />etc., that can be expected from the other model s and to ensure that <br />the test cases chosen are appropriate. <br />6. Prepare a report describing the test cases selected and the test-case <br />calculations. <br />7. Prepare, in a form suitable for evaluation by the Committee, a <br />compilation of the results of the test-case calculations that <br />i ncl udes wri tten narratives descri bi ng the techni ca 1 advantages and <br />disadvantages of the models considered. <br /> <br />In October of 1981 it was further determined, that subcontracts shoul d be <br />negotiated with four computer modelers for the performance of test-case <br />calculations, utilizing models selected from the inventory compiled by Dr. <br />Nakato, for at least two U.S. river channels and corresponding flood events. <br />Each modeler selected was to: <br /> <br />viii <br />