Composite relative risk indices for dreissenid mussel introductions in the Missouri River Basin: scripts and output

This data product develops a composite relative risk index (CRR) for watersheds within the Missouri River Basin, a region in the U.S. on the front line of dreissenid spread. The CRR is developed using datasets in order to account for the direct and indirect damages from a potential infestation along with the risk of an infestation occurring with a HUC10 watershed. Included are indices calculated on a Missouri River Basin-wide scale, and indices calculated on an individual state basis. This dataset includes the code used to build the CRR dataset and generated geospatial output.

本数据产品为地处美国斑贻贝（dreissenid）扩散前沿的密苏里河流域内的各流域，构建了复合相对风险指数（Composite Relative Risk Index，CRR）。该指数依托多数据集构建，旨在量化潜在斑贻贝侵染所引发的直接与间接损失，以及10级水文单元流域（HUC10）发生侵染的风险。本数据集涵盖全密苏里河流域尺度下计算得到的指数，以及分州尺度下计算得到的指数。本数据集同时包含用于构建CRR数据集的代码，以及所生成的地理空间输出成果。