SIR2016-5029_cfwgoshor_1b: Flood Inundation Depth for a Flow of 12,000 cfs at the Gage Coast Fork Willamette River at Goshen, Oregon (Area of Uncertainty)

The domain of the model is as follows: Row River from Dorena dam to the confluence with the Coast Fork; Coast Fork from Cottage Grove dam to the confluence with the Middle Fork; Silk Creek from River Mile 1.7 to the confluence with the Coast Fork. The basis for these features is the Willamette Flood Insurance Study – Phase One (2013). The hydraulics and hydrology for the FIS were reused in the production of these polygons; the reports and information associated with the FIS are applicable to this product. The Digital Elevation Model (DEM) utilized for the Willamette FIS submittal was produced by combining multiple overlapping topographic surveys for the Middle Fork and Coast Fork of the Willamette River. This DEM was created from four [...]

该模型覆盖的流域范围如下：罗河（Row River）段为多里纳大坝（Dorena dam）至其与海岸支流（Coast Fork）的汇流处；海岸支流段为科蒂奇格罗夫大坝（Cottage Grove dam）至其与中支流（Middle Fork）的汇流处；丝绸溪（Silk Creek）段为河流里程1.7英里处至其与海岸支流的汇流处。上述地理要素的编制依据为《威拉米特洪水保险研究——第一阶段（2013）》（Willamette Flood Insurance Study – Phase One (2013)）。本次多边形数据集的制作复用了该洪水保险研究（Flood Insurance Study，以下简称FIS）中的水力学与水文学数据，该研究配套的报告及相关信息同样适用于本产品。用于威拉米特洪水保险研究提交材料的数字高程模型（Digital Elevation Model, DEM），通过融合威拉米特河的中支流与海岸支流的多份重叠地形勘测数据生成。该数字高程模型由四份[...]